FieldMetaData (OpenJPA Parent POM 2.4.2 API)

java.lang.Object
- org.apache.openjpa.meta.Extensions
- - org.apache.openjpa.meta.FieldMetaData

All Implemented Interfaces:

Serializable, Commentable, MetaDataContext, MetaDataModes, ValueMetaData

Direct Known Subclasses:

FieldMapping
```
public class FieldMetaData
extends Extensions
implements ValueMetaData, MetaDataContext, MetaDataModes, Commentable
```
Metadata for a managed class field.

Author:

Abe White

See Also:
Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class FieldMetaData.MemberProvider
Serializable wrapper around a Method or Field.

Nested Classes
Modifier and Type	Class and Description
`static class`	`FieldMetaData.MemberProvider` Serializable wrapper around a `Method` or `Field`.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`MANAGE_NONE` Constant specifying the management level of a field.
`static int`	`MANAGE_PERSISTENT` Constant specifying the management level of a field.
`static int`	`MANAGE_TRANSACTIONAL` Constant specifying the management level of a field.
`static int`	`MANY_TO_MANY`
`static int`	`MANY_TO_ONE`
`static int`	`NULL_DEFAULT` Constant specifying to use a datastore default value to persist null values in object fields.
`static int`	`NULL_EXCEPTION` Constant specifying to throw an exception when attempting to persist null values in object fields.
`static int`	`NULL_NONE` Constant specifying to use a datastore null to persist null values in object fields.
`static int`	`NULL_UNSET` Constant specifying that no null-value was given.
`static int`	`ONE_TO_MANY`
`static int`	`ONE_TO_ONE`

Fields inherited from class org.apache.openjpa.meta.Extensions
OPENJPA

Fields inherited from interface org.apache.openjpa.meta.ValueMetaData
CASCADE_AUTO, CASCADE_IMMEDIATE, CASCADE_NONE, MAPPED_BY_PK

Fields inherited from interface org.apache.openjpa.meta.MetaDataModes
MODE_ALL, MODE_ANN_MAPPING, MODE_MAPPING, MODE_MAPPING_INIT, MODE_META, MODE_NONE, MODE_QUERY

Fields inherited from interface org.apache.openjpa.lib.xml.Commentable
EMPTY_COMMENTS

Constructor Summary

Constructors
Modifier Constructor and Description

protected FieldMetaData(String name, Class<?> type, ClassMetaData owner)
Constructor.

Constructors
Modifier	Constructor and Description
`protected`	`FieldMetaData(String name, Class<?> type, ClassMetaData owner)` Constructor.

Method Summary

Methods
Modifier and Type	Method and Description
`ClassMetaData`	`addEmbeddedMetaData()` Add embedded metadata for this value.
`ClassMetaData`	`addEmbeddedMetaData(int access)` Add embedded metadata for this value with the given access type
`protected void`	`addExtensionKeys(Collection exts)` Add all the known extension keys to the specified collection; any implementation that utilized new extensions should override this method to include both the known extensions of its superclass as well as its own extension keys.
`void`	`backingMember(Member member)` Supply the backing member object; this allows us to utilize parameterized type information if available.
`int`	`compareTo(Object other)`
`void`	`copy(FieldMetaData field)` Copy state from the given field to this one.
`void`	`copy(ValueMetaData vmd)` Copy state from the given value to this one.
`boolean`	`equals(Object other)`
`int`	`getAccessType()` Gets the access type used by this field.
`int`	`getAssociationType()`
`Member`	`getBackingMember()` Return the backing member supplied in `backingMember(java.lang.reflect.Member)`.
`int`	`getCascadeAttach()` Cascade behavior for attach operation.
`int`	`getCascadeDelete()` Cascade behavior for delete operation.
`int`	`getCascadeDetach()` Cascade behavior for detach operation.
`int`	`getCascadePersist()` Cascade behavior for persist operation.
`int`	`getCascadeRefresh()` Cascade behavior for refresh operation.
`String[]`	`getComments()` Return comments, or empty array if none.
`String[]`	`getCustomFetchGroups()` Gets the name of the custom fetch groups those are associated to this receiver.
`int`	`getDeclaredIndex()` The relative index of this persistent/transactional field.
`Class`	`getDeclaredType()` Return the declared class of the value.
`int`	`getDeclaredTypeCode()` Return the declared type code of the value.
`ClassMetaData`	`getDeclaredTypeMetaData()` Return metadata for the value's class, if the type is persistent.
`ClassMetaData`	`getDeclaringMetaData()` The declaring class.
`Class<?>`	`getDeclaringType()` The declaring class.
`ClassMetaData`	`getDefiningMetaData()` The class that defines the metadata for this field.
`ValueMetaData`	`getElement()` Metadata about the element value.
`ClassMetaData`	`getEmbeddedMetaData()` The embedded class metadata for the value.
`String`	`getExternalizer()` The name of this field's externalizer, or null if none.
`Method`	`getExternalizerMethod()` The externalizer method.
`Object`	`getExternalValue(Object val, StoreContext ctx)` Convert the given field value to its external value through the provided externalizer, or return the value as-is if no externalizer.
`Map`	`getExternalValueMap()` Return the mapping of field values to external values.
`String`	`getExternalValues()` Properties string mapping field values to external values.
`String`	`getFactory()` The name of this field's factory, or null if none.
`Member`	`getFactoryMethod()` The factory method or constructor.
`FieldMetaData`	`getFieldMetaData()` Return the owning field for this value.
`Object`	`getFieldValue(Object val, StoreContext ctx)` Return the result of passing the given external value through the factory to get the field value.
`Map`	`getFieldValueMap()` Return the mapping of external values to field values.
`String`	`getFullName()` Deprecated. Use getFullName(boolean) instead.
`String`	`getFullName(boolean embedOwner)` The field name, qualified by the owning class and optionally the embedding owner's name (if any).
`int`	`getIndex()` The absolute index of this persistent/transactional field.
`Object`	`getInitializer()` The initializer used by the field, or null if none.
`String`	`getInverse()` Logical inverse field.
`FieldMetaData[]`	`getInverseMetaDatas()` Return all inverses of this field.
`ValueMetaData`	`getKey()` Metadata about the key value.
`int`	`getListingIndex()` The index in which this field was listed in the metadata.
`String`	`getLoadFetchGroup()` The fetch group that is to be loaded when this receiver is loaded, or null if none set.
`int`	`getManagement()` Return the management level for the field.
`String`	`getMappedBy()` The field that this field shares a mapping with.
`FieldMetaData`	`getMappedByField(ClassMetaData meta, String mappedBy)`
`String`	`getMappedByIdValue()`
`FieldMetaData`	`getMappedByMetaData()` The field that this field shares a mapping with.
`String`	`getName()` The field name.
`int`	`getNullValue()` How the data store should treat null values for this field: `NULL_UNSET`: no value supplied `NULL_NONE`: leave null values as null in the data store `NULL_EXCEPTION`: throw an exception if this field is null at commit `NULL_DEFAULT`: use the database default if this field is null at commit Defaults to `NULL_UNSET`.
`Class<?>`	`getObjectIdFieldType()` For a primary key field, return the type of the corresponding object id class field.
`int`	`getObjectIdFieldTypeCode()` For a primary key field, return the type of the corresponding object id class field.
`String`	`getOrderDeclaration()` String declaring the orderings for this field to be applied on load, or null.
`Order[]`	`getOrders()` The orderings for this field to be applied on load, or empty array.
`int`	`getPrimaryKeyIndex()` The absolute primary key index for this field, or -1 if not a primary key.
`Class<?>`	`getProxyType()` The type this field was initialized with, and therefore the type to use for proxies when loading data into this field.
`String`	`getRealName()` The field name, qualified by the defining class.
`Class<?>`	`getRelationType()`
`MetaDataRepository`	`getRepository()` The metadata repository.
`int`	`getResolve()` Resolve mode for this field.
`String`	`getSetterName()`
`Class`	`getType()` The value class.
`int`	`getTypeCode()` The type code of the value class.
`ClassMetaData`	`getTypeMetaData()` The metadata for the value class, if the type is persistent.
`Class<?>`	`getTypeOverride()` User-supplied type overriding assumed type based on field.
`int`	`getUpdateStrategy()` The strategy to use when updating the field.
`boolean`	`getUseSchemaElement()` Whether to include schema name in generated files
`ValueMetaData`	`getValue()` MetaData about the field value.
`String`	`getValueMappedBy()` The field that this value shares a mapping with.
`FieldMetaData`	`getValueMappedByMetaData()` The field that this value shares a mapping with.
`SequenceMetaData`	`getValueSequenceMetaData()` Metadata for the value sequence.
`String`	`getValueSequenceName()` The value sequence name, or null for none.
`int`	`getValueStrategy()` The strategy to use for insert value generation.
`int`	`hashCode()`
`boolean`	`isDeclaredTypePC()` Whether the type is a persistence capable instance.
`boolean`	`isDefaultFetchGroupExplicit()` Whether the default fetch group setting is explicit.
`boolean`	`isDelayCapable()`
`boolean`	`isElementCollection()`
`boolean`	`isEmbedded()` This attribute is a hint to the implementation to store this value in the same structure as the class, rather than as a separate datastore structure.
`boolean`	`isEmbeddedPC()` Whether this is an embedded persistence capable value.
`boolean`	`isExplicit()` Whether this field is explicitly declared in the metadata.
`boolean`	`isExternalized()` Whether the field is externalized.
`boolean`	`isInDefaultFetchGroup()` Whether this field is in the default fetch group.
`boolean`	`isInFetchGroup(String fg)` Whether this field is in the given fetch group.
`boolean`	`isLRS()` Whether this field is backed by a large result set.
`boolean`	`isMapped()` Return whether this field is mapped to the datastore.
`boolean`	`isMappedById()`
`boolean`	`isPersistentCollection()`
`boolean`	`isPrimaryKey()` Whether this is a primary key field.
`boolean`	`isSerialized()` Whether this value is serialized when stored.
`boolean`	`isStream()` Whether this field is backed by a stream.
`boolean`	`isTransient()` Return whether this is a transient field.
`boolean`	`isTypePC()` Whether the type is a persistence capable instance.
`boolean`	`isUsedInOrderBy()` Check if this field is used by other field as "order by" value.
`boolean`	`isValueGenerated()`
`boolean`	`isVersion()` Whether this field holds optimistic version information.
`Object`	`order(Object val)` Order this field value when it is loaded.
`boolean`	`resolve(int mode)` Resolve and validate metadata.
`void`	`setAccessType(int fCode)` Sets access type of this field.
`void`	`setAssociationType(int type)`
`void`	`setCascadeAttach(int attach)` Cascade behavior for attach operation.
`void`	`setCascadeDelete(int delete)` Cascade behavior for deletion.
`void`	`setCascadeDetach(int detach)` Cascade behavior for detach operation.
`void`	`setCascadePersist(int persist)` Cascade behavior for persist operation.
`void`	`setCascadePersist(int cascade, boolean checkPUDefault)` Cascade behavior for persist operation.
`void`	`setCascadeRefresh(int refresh)` Cascade behavior for refresh operation.
`void`	`setComments(String[] comments)` Set comments.
`void`	`setDeclaredIndex(int index)` The relative index of this persistent/transactional field.
`void`	`setDeclaredType(Class type)` Set the declared class of the value.
`void`	`setDeclaredTypeCode(int type)` Set the type code for the value.
`void`	`setDeclaringType(Class<?> cls)` The declaring class.
`void`	`setDefaultFetchGroupExplicit(boolean explicit)` Whether the default fetch group setting is explicit.
`void`	`setDelayCapable(Boolean delayCapable)`
`void`	`setElementCollection(boolean isElementCollection)`
`void`	`setEmbedded(boolean embedded)` This attribute is a hint to the implementation to store this value in the same structure as the class, rather than as a separate datastore structure.
`void`	`setExplicit(boolean explicit)` Whether this field is explicitly declared in the metadata.
`void`	`setExternalizer(String externalizer)` The name of this field's externalizer, or null if none.
`void`	`setExternalValues(String values)` Properties string mapping field values to external values.
`void`	`setFactory(String factory)` The name of this field's factory, or null if none.
`void`	`setInDefaultFetchGroup(boolean dfg)` Whether this field is in the default fetch group.
`void`	`setIndex(int index)` The absolute index of this persistent/transactional field.
`void`	`setInFetchGroup(String fg, boolean in)` Set whether this field is in the given fetch group.
`void`	`setInitializer(Object initializer)` The initializer used by the field, or null if none.
`void`	`setInverse(String inverse)` Logical inverse field.
`void`	`setListingIndex(int index)` The index in which this field was listed in the metadata.
`void`	`setLoadFetchGroup(String lfg)` The fetch group that is to be loaded when this receiver is loaded, or null if none set.
`void`	`setLRS(boolean lrs)` Whether this field is backed by a large result set.
`void`	`setManagement(int manage)` Return the management level for the field.
`void`	`setMappedBy(String mapped)` The field that this field shares a mapping with.
`void`	`setMappedByIdValue(String mappedByIdValue)`
`void`	`setNullValue(int nullValue)` How the data store should treat null values for this field: `NULL_UNSET`: no value supplied `NULL_NONE`: leave null values as null in the data store `NULL_EXCEPTION`: throw an exception if this field is null at commit `NULL_DEFAULT`: use the database default if this field is null at commit Defaults to `NULL_UNSET`.
`void`	`setOrderDeclaration(String dec)` String declaring the orderings for this field to be applied on load, or null.
`void`	`setOrders(Order[] orders)` The orderings for this field to be applied on load.
`void`	`setPersistentCollection(boolean persistentCollection)`
`void`	`setPrimaryKey(boolean primKey)` Whether this is a primary key field.
`void`	`setPrimaryKeyIndex(int index)` The absolute primary key index for this field, or -1 if not a primary key.
`void`	`setProxyType(Class<?> type)` The type this field was initialized with, and therefore the type to use for proxies when loading data into this field.
`void`	`setResolve(int mode)` Resolve mode for this field.
`void`	`setResolve(int mode, boolean on)` Resolve mode for this field.
`void`	`setSerialized(boolean serialized)` Whether this value is serialized when stored.
`void`	`setStream(boolean stream)` Whether this field is backed by a stream.
`void`	`setTransient(boolean trans)` Return whether this is a transient field.
`void`	`setType(Class type)` The value class.
`void`	`setTypeCode(int code)` The type code of the value class.
`void`	`setTypeOverride(Class type)` User-supplied type overriding assumed type based on field.
`void`	`setUpdateStrategy(int strategy)` Set the update strategy.
`void`	`setUsedInOrderBy(boolean isUsed)` Whether this field is used by other field as "order by" value .
`void`	`setUseSchemaElement(boolean _useSchemaElement)` Whether to include schema name in generated files
`void`	`setUsesImplData(Boolean implData)` Whether this field uses impl data in conjunction with standard field data when acting on a `OpenJPAStateManager`.
`void`	`setUsesIntermediate(boolean intermediate)` Whether this field uses intermediate data when loading/storing information through a `OpenJPAStateManager`.
`void`	`setValueGenerated(boolean generated)`
`void`	`setValueMappedBy(String mapped)` The field that this value shares a mapping with.
`void`	`setValueSequenceName(String seqName)` The value sequence name, or null for none.
`void`	`setValueStrategy(int strategy)` The strategy to use for insert value generation.
`void`	`setVersion(boolean version)` Whether this field holds optimistic version information.
`String`	`toString()`
`Boolean`	`usesImplData()` Whether this field uses impl data in conjunction with standard field data when acting on a `OpenJPAStateManager`.
`boolean`	`usesIntermediate()` Whether this field uses intermediate data when loading/storing information through a `OpenJPAStateManager`.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - NULL_UNSET
```
public static final int NULL_UNSET
```
    Constant specifying that no null-value was given.
    
    See Also:
    Constant Field Values
  - NULL_NONE
```
public static final int NULL_NONE
```
    Constant specifying to use a datastore null to persist null values in object fields.
    
    See Also:
    Constant Field Values
  - NULL_DEFAULT
```
public static final int NULL_DEFAULT
```
    Constant specifying to use a datastore default value to persist null values in object fields.
    
    See Also:
    Constant Field Values
  - NULL_EXCEPTION
```
public static final int NULL_EXCEPTION
```
    Constant specifying to throw an exception when attempting to persist null values in object fields.
    
    See Also:
    Constant Field Values
  - MANAGE_PERSISTENT
```
public static final int MANAGE_PERSISTENT
```
    Constant specifying the management level of a field.
    
    See Also:
    Constant Field Values
  - MANAGE_TRANSACTIONAL
```
public static final int MANAGE_TRANSACTIONAL
```
    Constant specifying the management level of a field.
    
    See Also:
    Constant Field Values
  - MANAGE_NONE
```
public static final int MANAGE_NONE
```
    Constant specifying the management level of a field.
    
    See Also:
    Constant Field Values
  - ONE_TO_ONE
```
public static final int ONE_TO_ONE
```
    See Also:
    Constant Field Values
  - ONE_TO_MANY
```
public static final int ONE_TO_MANY
```
    See Also:
    Constant Field Values
  - MANY_TO_ONE
```
public static final int MANY_TO_ONE
```
    See Also:
    Constant Field Values
  - MANY_TO_MANY
```
public static final int MANY_TO_MANY
```
    See Also:
    Constant Field Values
- Constructor Detail
  - FieldMetaData
```
protected FieldMetaData(String name,
             Class<?> type,
             ClassMetaData owner)
```
    Constructor.
    
    Parameters:
    name - the field name
    type - the field type
    owner - the owning class metadata
- Method Detail
  - backingMember
```
public void backingMember(Member member)
```
    Supply the backing member object; this allows us to utilize parameterized type information if available. Sets the access style of this receiver based on whether the given member represents a field or getter method.
  - getBackingMember
```
public Member getBackingMember()
```
    Return the backing member supplied in backingMember(java.lang.reflect.Member).
  - getRepository
```
public MetaDataRepository getRepository()
```
    The metadata repository.
    
    Specified by:
    
    getRepository in interface MetaDataContext
    
    Specified by:
    
    getRepository in class Extensions
  - getDefiningMetaData
```
public ClassMetaData getDefiningMetaData()
```
    The class that defines the metadata for this field.
  - getDeclaringType
```
public Class<?> getDeclaringType()
```
    The declaring class.
  - setDeclaringType
```
public void setDeclaringType(Class<?> cls)
```
    The declaring class.
  - getDeclaringMetaData
```
public ClassMetaData getDeclaringMetaData()
```
    The declaring class.
  - getName
```
public String getName()
```
    The field name.
  - getFullName
```
public String getFullName()
```
    Deprecated. Use getFullName(boolean) instead.
    
    The field name, qualified by the owning class.
  - getFullName
```
public String getFullName(boolean embedOwner)
```
    The field name, qualified by the owning class and optionally the embedding owner's name (if any).
  - getRealName
```
public String getRealName()
```
    The field name, qualified by the defining class.
  - getValue
```
public ValueMetaData getValue()
```
    MetaData about the field value.
  - getKey
```
public ValueMetaData getKey()
```
    Metadata about the key value.
  - getElement
```
public ValueMetaData getElement()
```
    Metadata about the element value.
  - isMapped
```
public boolean isMapped()
```
    Return whether this field is mapped to the datastore. By default, returns true for all persistent fields whose defining class is mapped.
  - getProxyType
```
public Class<?> getProxyType()
```
    The type this field was initialized with, and therefore the type to use for proxies when loading data into this field.
  - setProxyType
```
public void setProxyType(Class<?> type)
```
    The type this field was initialized with, and therefore the type to use for proxies when loading data into this field.
  - getInitializer
```
public Object getInitializer()
```
    The initializer used by the field, or null if none. This is additional information for initializing the field, such as a custom Comparator used by a Set or a TimeZone used by a Calendar.
  - setInitializer
```
public void setInitializer(Object initializer)
```
    The initializer used by the field, or null if none. This is additional information for initializing the field, such as a custom Comparator used by a Set or a TimeZone used by a Calendar.
  - isTransient
```
public boolean isTransient()
```
    Return whether this is a transient field.
  - setTransient
```
public void setTransient(boolean trans)
```
    Return whether this is a transient field.
  - getIndex
```
public int getIndex()
```
    The absolute index of this persistent/transactional field.
  - setIndex
```
public void setIndex(int index)
```
    The absolute index of this persistent/transactional field.
  - getDeclaredIndex
```
public int getDeclaredIndex()
```
    The relative index of this persistent/transactional field.
  - setDeclaredIndex
```
public void setDeclaredIndex(int index)
```
    The relative index of this persistent/transactional field.
  - getListingIndex
```
public int getListingIndex()
```
    The index in which this field was listed in the metadata. Defaults to -1 if this field was not listed in the metadata.
  - setListingIndex
```
public void setListingIndex(int index)
```
    The index in which this field was listed in the metadata. Defaults to -1 if this field was not listed in the metadata.
  - getPrimaryKeyIndex
```
public int getPrimaryKeyIndex()
```
    The absolute primary key index for this field, or -1 if not a primary key. The first primary key field has index 0, the second index 1, etc.
  - setPrimaryKeyIndex
```
public void setPrimaryKeyIndex(int index)
```
    The absolute primary key index for this field, or -1 if not a primary key. The first primary key field has index 0, the second index 1, etc.
  - getManagement
```
public int getManagement()
```
    Return the management level for the field. Will be one of:
    - MANAGE_PERSISTENT: the field is persistent
    - MANAGE_TRANSACTIONAL: the field is transactional but not persistent
    - MANAGE_NONE: the field is not managed
    Defaults to MANAGE_PERSISTENT.
  - setManagement
```
public void setManagement(int manage)
```
    Return the management level for the field. Will be one of:
    - MANAGE_PERSISTENT: the field is persistent
    - MANAGE_TRANSACTIONAL: the field is transactional but not persistent
    - MANAGE_NONE: the field is not managed
    Defaults to MANAGE_PERSISTENT.
  - isPrimaryKey
```
public boolean isPrimaryKey()
```
    Whether this is a primary key field.
  - setPrimaryKey
```
public void setPrimaryKey(boolean primKey)
```
    Whether this is a primary key field.
  - getObjectIdFieldTypeCode
```
public int getObjectIdFieldTypeCode()
```
    For a primary key field, return the type of the corresponding object id class field.
  - getObjectIdFieldType
```
public Class<?> getObjectIdFieldType()
```
    For a primary key field, return the type of the corresponding object id class field.
  - isVersion
```
public boolean isVersion()
```
    Whether this field holds optimistic version information.
  - setVersion
```
public void setVersion(boolean version)
```
    Whether this field holds optimistic version information.
  - isInDefaultFetchGroup
```
public boolean isInDefaultFetchGroup()
```
    Whether this field is in the default fetch group.
  - setInDefaultFetchGroup
```
public void setInDefaultFetchGroup(boolean dfg)
```
    Whether this field is in the default fetch group.
  - isDefaultFetchGroupExplicit
```
public boolean isDefaultFetchGroupExplicit()
```
    Whether the default fetch group setting is explicit.
  - setDefaultFetchGroupExplicit
```
public void setDefaultFetchGroupExplicit(boolean explicit)
```
    Whether the default fetch group setting is explicit. Allow setting for testing.
  - getCustomFetchGroups
```
public String[] getCustomFetchGroups()
```
    Gets the name of the custom fetch groups those are associated to this receiver. This does not include the "default" and "all" fetch groups.
    
    Returns:
    the set of fetch group names, not including the default and all fetch groups.
  - getLoadFetchGroup
```
public String getLoadFetchGroup()
```
    The fetch group that is to be loaded when this receiver is loaded, or null if none set.
  - setLoadFetchGroup
```
public void setLoadFetchGroup(String lfg)
```
    The fetch group that is to be loaded when this receiver is loaded, or null if none set.
  - isInFetchGroup
```
public boolean isInFetchGroup(String fg)
```
    Whether this field is in the given fetch group.
  - setInFetchGroup
```
public void setInFetchGroup(String fg,
                   boolean in)
```
    Set whether this field is in the given fetch group.
    
    Parameters:
    fg - is the name of a fetch group that must be present in the class that declared this field or any of its persistent superclasses.
  - getNullValue
```
public int getNullValue()
```
    How the data store should treat null values for this field:
    - NULL_UNSET: no value supplied
    - NULL_NONE: leave null values as null in the data store
    - NULL_EXCEPTION: throw an exception if this field is null at commit
    - NULL_DEFAULT: use the database default if this field is null at commit
    Defaults to NULL_UNSET.
  - setNullValue
```
public void setNullValue(int nullValue)
```
    How the data store should treat null values for this field:
    - NULL_UNSET: no value supplied
    - NULL_NONE: leave null values as null in the data store
    - NULL_EXCEPTION: throw an exception if this field is null at commit
    - NULL_DEFAULT: use the database default if this field is null at commit
    Defaults to NULL_UNSET.
  - isExplicit
```
public boolean isExplicit()
```
    Whether this field is explicitly declared in the metadata.
  - setExplicit
```
public void setExplicit(boolean explicit)
```
    Whether this field is explicitly declared in the metadata.
  - getMappedBy
```
public String getMappedBy()
```
    The field that this field shares a mapping with.
  - setMappedBy
```
public void setMappedBy(String mapped)
```
    The field that this field shares a mapping with.
  - getMappedByMetaData
```
public FieldMetaData getMappedByMetaData()
```
    The field that this field shares a mapping with.
  - getMappedByField
```
public FieldMetaData getMappedByField(ClassMetaData meta,
                             String mappedBy)
```
  - getInverse
```
public String getInverse()
```
    Logical inverse field.
  - setInverse
```
public void setInverse(String inverse)
```
    Logical inverse field.
  - getInverseMetaDatas
```
public FieldMetaData[] getInverseMetaDatas()
```
    Return all inverses of this field.
  - getValueStrategy
```
public int getValueStrategy()
```
    The strategy to use for insert value generation. One of the constants from ValueStrategies.
  - setValueStrategy
```
public void setValueStrategy(int strategy)
```
    The strategy to use for insert value generation. One of the constants from ValueStrategies.
  - getValueSequenceName
```
public String getValueSequenceName()
```
    The value sequence name, or null for none.
  - setValueSequenceName
```
public void setValueSequenceName(String seqName)
```
    The value sequence name, or null for none.
  - getValueSequenceMetaData
```
public SequenceMetaData getValueSequenceMetaData()
```
    Metadata for the value sequence.
  - getUpdateStrategy
```
public int getUpdateStrategy()
```
    The strategy to use when updating the field.
  - setUpdateStrategy
```
public void setUpdateStrategy(int strategy)
```
    Set the update strategy.
  - isLRS
```
public boolean isLRS()
```
    Whether this field is backed by a large result set.
  - setLRS
```
public void setLRS(boolean lrs)
```
    Whether this field is backed by a large result set.
  - isStream
```
public boolean isStream()
```
    Whether this field is backed by a stream.
    
    Since:
    
    1.1.0
  - setStream
```
public void setStream(boolean stream)
```
    Whether this field is backed by a stream.
    
    Since:
    
    1.1.0
  - usesIntermediate
```
public boolean usesIntermediate()
```
    Whether this field uses intermediate data when loading/storing information through a OpenJPAStateManager. Defaults to true.
    
    See Also:
    OpenJPAStateManager.setIntermediate(int,Object)
  - setUsesIntermediate
```
public void setUsesIntermediate(boolean intermediate)
```
    Whether this field uses intermediate data when loading/storing information through a OpenJPAStateManager. Defaults to true.
    
    See Also:
    OpenJPAStateManager.setIntermediate(int,Object)
  - usesImplData
```
public Boolean usesImplData()
```
    Whether this field uses impl data in conjunction with standard field data when acting on a OpenJPAStateManager. Defaults to Boolean.TRUE (non-cachable impl data).
    
    Returns:
    Boolean.FALSE if this field does not use impl data, Boolean.TRUE if this field uses non-cachable impl data, or null if this field uses impl data that should be cached across instances
    See Also:
    OpenJPAStateManager.setImplData(int,Object)
  - setUsesImplData
```
public void setUsesImplData(Boolean implData)
```
    Whether this field uses impl data in conjunction with standard field data when acting on a OpenJPAStateManager.
    
    See Also:
    OpenJPAStateManager.setImplData(int,Object), usesImplData()
  - getOrders
```
public Order[] getOrders()
```
    The orderings for this field to be applied on load, or empty array.
  - setOrders
```
public void setOrders(Order[] orders)
```
    The orderings for this field to be applied on load.
  - getOrderDeclaration
```
public String getOrderDeclaration()
```
    String declaring the orderings for this field to be applied on load, or null. The string is of the form:
    orderable[ asc|desc][, ...]
    The orderable #element is used to denote the value of the field's elements.
  - setOrderDeclaration
```
public void setOrderDeclaration(String dec)
```
    String declaring the orderings for this field to be applied on load, or null. The string is of the form:
    orderable[ asc|desc][, ...]
    The orderable #element is used to denote the value of the field's elements.
  - order
```
public Object order(Object val)
```
    Order this field value when it is loaded.
  - isExternalized
```
public boolean isExternalized()
```
    Whether the field is externalized.
  - getExternalValue
```
public Object getExternalValue(Object val,
                      StoreContext ctx)
```
    Convert the given field value to its external value through the provided externalizer, or return the value as-is if no externalizer.
  - getFieldValue
```
public Object getFieldValue(Object val,
                   StoreContext ctx)
```
    Return the result of passing the given external value through the factory to get the field value. If no factory is present, the given value is returned as-is.
  - getExternalizer
```
public String getExternalizer()
```
    The name of this field's externalizer, or null if none.
  - setExternalizer
```
public void setExternalizer(String externalizer)
```
    The name of this field's externalizer, or null if none.
  - getFactory
```
public String getFactory()
```
    The name of this field's factory, or null if none.
  - setFactory
```
public void setFactory(String factory)
```
    The name of this field's factory, or null if none.
  - getExternalValues
```
public String getExternalValues()
```
    Properties string mapping field values to external values.
  - setExternalValues
```
public void setExternalValues(String values)
```
    Properties string mapping field values to external values.
  - getExternalValueMap
```
public Map getExternalValueMap()
```
    Return the mapping of field values to external values.
  - getFieldValueMap
```
public Map getFieldValueMap()
```
    Return the mapping of external values to field values.
  - getExternalizerMethod
```
public Method getExternalizerMethod()
```
    The externalizer method.
  - getFactoryMethod
```
public Member getFactoryMethod()
```
    The factory method or constructor.
  - equals
```
public boolean equals(Object other)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - compareTo
```
public int compareTo(Object other)
```
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getResolve
```
public int getResolve()
```
    Resolve mode for this field.
    
    Specified by:
    
    getResolve in interface ValueMetaData
  - setResolve
```
public void setResolve(int mode)
```
    Resolve mode for this field.
    
    Specified by:
    
    setResolve in interface ValueMetaData
  - setResolve
```
public void setResolve(int mode,
              boolean on)
```
    Resolve mode for this field.
    
    Specified by:
    
    setResolve in interface ValueMetaData
  - resolve
```
public boolean resolve(int mode)
```
    Resolve and validate metadata. Return true if already resolved.
    
    Specified by:
    
    resolve in interface ValueMetaData
  - copy
```
public void copy(FieldMetaData field)
```
    Copy state from the given field to this one. Do not copy mapping information.
  - addExtensionKeys
```
protected void addExtensionKeys(Collection exts)
```
    Description copied from class: Extensions
    
    Add all the known extension keys to the specified collection; any implementation that utilized new extensions should override this method to include both the known extensions of its superclass as well as its own extension keys.
    
    Overrides:
    
    addExtensionKeys in class Extensions
  - getComments
```
public String[] getComments()
```
    Description copied from interface: Commentable
    
    Return comments, or empty array if none.
    
    Specified by:
    
    getComments in interface Commentable
  - setComments
```
public void setComments(String[] comments)
```
    Description copied from interface: Commentable
    
    Set comments.
    
    Specified by:
    
    setComments in interface Commentable
  - getFieldMetaData
```
public FieldMetaData getFieldMetaData()
```
    Description copied from interface: ValueMetaData
    
    Return the owning field for this value.
    
    Specified by:
    
    getFieldMetaData in interface ValueMetaData
  - getType
```
public Class getType()
```
    Description copied from interface: ValueMetaData
    
    The value class.
    
    Specified by:
    
    getType in interface ValueMetaData
  - setType
```
public void setType(Class type)
```
    Description copied from interface: ValueMetaData
    
    The value class.
    
    Specified by:
    
    setType in interface ValueMetaData
  - getTypeCode
```
public int getTypeCode()
```
    Description copied from interface: ValueMetaData
    
    The type code of the value class.
    
    Specified by:
    
    getTypeCode in interface ValueMetaData
  - setTypeCode
```
public void setTypeCode(int code)
```
    Description copied from interface: ValueMetaData
    
    The type code of the value class.
    
    Specified by:
    
    setTypeCode in interface ValueMetaData
  - isTypePC
```
public boolean isTypePC()
```
    Description copied from interface: ValueMetaData
    
    Whether the type is a persistence capable instance.
    
    Specified by:
    
    isTypePC in interface ValueMetaData
  - getTypeMetaData
```
public ClassMetaData getTypeMetaData()
```
    Description copied from interface: ValueMetaData
    
    The metadata for the value class, if the type is persistent.
    
    Specified by:
    
    getTypeMetaData in interface ValueMetaData
  - getDeclaredType
```
public Class getDeclaredType()
```
    Description copied from interface: ValueMetaData
    
    Return the declared class of the value. This can differ from the return value of ValueMetaData.getType() if the user indicates a different type or the value has an externalizer.
    
    Specified by:
    
    getDeclaredType in interface ValueMetaData
  - setDeclaredType
```
public void setDeclaredType(Class type)
```
    Description copied from interface: ValueMetaData
    
    Set the declared class of the value.
    
    Specified by:
    
    setDeclaredType in interface ValueMetaData
  - getDeclaredTypeCode
```
public int getDeclaredTypeCode()
```
    Description copied from interface: ValueMetaData
    
    Return the declared type code of the value. This can differ from the return value of ValueMetaData.getTypeCode() if the user indicates a different type or the value has an externalizer.
    
    Specified by:
    
    getDeclaredTypeCode in interface ValueMetaData
  - setDeclaredTypeCode
```
public void setDeclaredTypeCode(int type)
```
    Description copied from interface: ValueMetaData
    
    Set the type code for the value. The type code is usually computed automatically, but it can be useful to set it explicitly when creating metadatas from scratch.
    
    Specified by:
    
    setDeclaredTypeCode in interface ValueMetaData
  - isDeclaredTypePC
```
public boolean isDeclaredTypePC()
```
    Description copied from interface: ValueMetaData
    
    Whether the type is a persistence capable instance.
    
    Specified by:
    
    isDeclaredTypePC in interface ValueMetaData
  - getDeclaredTypeMetaData
```
public ClassMetaData getDeclaredTypeMetaData()
```
    Description copied from interface: ValueMetaData
    
    Return metadata for the value's class, if the type is persistent.
    
    Specified by:
    
    getDeclaredTypeMetaData in interface ValueMetaData
  - isEmbedded
```
public boolean isEmbedded()
```
    Description copied from interface: ValueMetaData
    
    This attribute is a hint to the implementation to store this value in the same structure as the class, rather than as a separate datastore structure. Defaults to true if the field is not a collection or map or persistence-capable object; defaults to false otherwise. Implementations are permitted to ignore this attribute.
    
    Specified by:
    
    isEmbedded in interface ValueMetaData
  - setEmbedded
```
public void setEmbedded(boolean embedded)
```
    Description copied from interface: ValueMetaData
    
    This attribute is a hint to the implementation to store this value in the same structure as the class, rather than as a separate datastore structure. Defaults to true if the field is not a collection or map or persistence-capable objects; defaults to false otherwise. Implementations are permitted to ignore this attribute.
    
    Specified by:
    
    setEmbedded in interface ValueMetaData
  - isEmbeddedPC
```
public boolean isEmbeddedPC()
```
    Description copied from interface: ValueMetaData
    
    Whether this is an embedded persistence capable value.
    
    Specified by:
    
    isEmbeddedPC in interface ValueMetaData
  - getEmbeddedMetaData
```
public ClassMetaData getEmbeddedMetaData()
```
    Description copied from interface: ValueMetaData
    
    The embedded class metadata for the value.
    
    Specified by:
    
    getEmbeddedMetaData in interface ValueMetaData
  - addEmbeddedMetaData
```
public ClassMetaData addEmbeddedMetaData(int access)
```
    Description copied from interface: ValueMetaData
    
    Add embedded metadata for this value with the given access type
    
    Specified by:
    
    addEmbeddedMetaData in interface ValueMetaData
  - addEmbeddedMetaData
```
public ClassMetaData addEmbeddedMetaData()
```
    Description copied from interface: ValueMetaData
    
    Add embedded metadata for this value.
    
    Specified by:
    
    addEmbeddedMetaData in interface ValueMetaData
  - getCascadeDelete
```
public int getCascadeDelete()
```
    Description copied from interface: ValueMetaData
    Cascade behavior for delete operation. Only applies to persistence-capable values. Options are:
    - CASCADE_NONE: No cascades.
    - CASCADE_IMMEDIATE: Value is deleted immediately when the owning object is deleted.
    - CASCADE_AUTO: Value will be deleted on flush if the owning object is deleted or if the value is removed from the owning object, and if the value is not assigned to another relation in the same transaction.
    Specified by:
    
    getCascadeDelete in interface ValueMetaData
  - setCascadeDelete
```
public void setCascadeDelete(int delete)
```
    Description copied from interface: ValueMetaData
    
    Cascade behavior for deletion.
    
    Specified by:
    
    setCascadeDelete in interface ValueMetaData
    
    See Also:
    ValueMetaData.getCascadeDelete()
  - getCascadePersist
```
public int getCascadePersist()
```
    Description copied from interface: ValueMetaData
    Cascade behavior for persist operation. Only applies to persistence-capable values. Options are:
    - CASCADE_NONE: No cascades. If a transient relation is held at flush, an error is thrown.
    - CASCADE_IMMEDIATE: Value is persisted immediately when the owning object is persisted.
    - CASCADE_AUTO: Value will be persisted on flush.
    Specified by:
    
    getCascadePersist in interface ValueMetaData
  - setCascadePersist
```
public void setCascadePersist(int persist)
```
    Description copied from interface: ValueMetaData
    
    Cascade behavior for persist operation.
    
    Specified by:
    
    setCascadePersist in interface ValueMetaData
    
    See Also:
    ValueMetaData.getCascadePersist()
  - setCascadePersist
```
public void setCascadePersist(int cascade,
                     boolean checkPUDefault)
```
    Description copied from interface: ValueMetaData
    
    Cascade behavior for persist operation.
    
    Specified by:
    
    setCascadePersist in interface ValueMetaData
    
    See Also:
    ValueMetaData.getCascadePersist()
  - getCascadeAttach
```
public int getCascadeAttach()
```
    Description copied from interface: ValueMetaData
    Cascade behavior for attach operation. Only applies to persistence-capable values. Options are:
    - CASCADE_NONE: No cascades of attach. Relation remains detached.
    - CASCADE_IMMEDIATE: Value is attached immediately.
    Specified by:
    
    getCascadeAttach in interface ValueMetaData
  - setCascadeAttach
```
public void setCascadeAttach(int attach)
```
    Description copied from interface: ValueMetaData
    
    Cascade behavior for attach operation.
    
    Specified by:
    
    setCascadeAttach in interface ValueMetaData
    
    See Also:
    ValueMetaData.getCascadeAttach()
  - getCascadeDetach
```
public int getCascadeDetach()
```
    Description copied from interface: ValueMetaData
    Cascade behavior for detach operation. Only applies to persistence-capable values. Options are:
    - CASCADE_NONE: No cascades of detach. Relation remains attached.
    - CASCADE_IMMEDIATE: Value is detached immediately.
    Specified by:
    
    getCascadeDetach in interface ValueMetaData
  - setCascadeDetach
```
public void setCascadeDetach(int detach)
```
    Description copied from interface: ValueMetaData
    
    Cascade behavior for detach operation.
    
    Specified by:
    
    setCascadeDetach in interface ValueMetaData
    
    See Also:
    ValueMetaData.getCascadeDetach()
  - getCascadeRefresh
```
public int getCascadeRefresh()
```
    Description copied from interface: ValueMetaData
    Cascade behavior for refresh operation. Only applies to persistence-capable values. Options are:
    - CASCADE_NONE: No cascades of refresh.
    - CASCADE_IMMEDIATE: Persistent value object is also refreshed.
    - CASCADE_AUTO: Value will be refreshed if it is in the current fetch groups.
    Specified by:
    
    getCascadeRefresh in interface ValueMetaData
  - setCascadeRefresh
```
public void setCascadeRefresh(int refresh)
```
    Description copied from interface: ValueMetaData
    
    Cascade behavior for refresh operation.
    
    Specified by:
    
    setCascadeRefresh in interface ValueMetaData
    
    See Also:
    ValueMetaData.getCascadeRefresh()
  - isSerialized
```
public boolean isSerialized()
```
    Description copied from interface: ValueMetaData
    
    Whether this value is serialized when stored.
    
    Specified by:
    
    isSerialized in interface ValueMetaData
  - setSerialized
```
public void setSerialized(boolean serialized)
```
    Description copied from interface: ValueMetaData
    
    Whether this value is serialized when stored.
    
    Specified by:
    
    setSerialized in interface ValueMetaData
  - getValueMappedBy
```
public String getValueMappedBy()
```
    Description copied from interface: ValueMetaData
    
    The field that this value shares a mapping with. Currently the only supported use for a mapped-by value is when a map field key is determined by a field of the persistence-capable map value.
    
    Specified by:
    
    getValueMappedBy in interface ValueMetaData
  - setValueMappedBy
```
public void setValueMappedBy(String mapped)
```
    Description copied from interface: ValueMetaData
    
    The field that this value shares a mapping with. Currently the only supported use for a mapped-by value is when a map field key is determined by a field of the persistence-capable map value.
    
    Specified by:
    
    setValueMappedBy in interface ValueMetaData
  - getValueMappedByMetaData
```
public FieldMetaData getValueMappedByMetaData()
```
    Description copied from interface: ValueMetaData
    
    The field that this value shares a mapping with. Currently the only supported use for a mapped-by value is when a map field key is determined by a field of the persistence-capable map value.
    
    Specified by:
    
    getValueMappedByMetaData in interface ValueMetaData
  - getTypeOverride
```
public Class<?> getTypeOverride()
```
    Description copied from interface: ValueMetaData
    
    User-supplied type overriding assumed type based on field.
    
    Specified by:
    
    getTypeOverride in interface ValueMetaData
  - setTypeOverride
```
public void setTypeOverride(Class type)
```
    Description copied from interface: ValueMetaData
    
    User-supplied type overriding assumed type based on field.
    
    Specified by:
    
    setTypeOverride in interface ValueMetaData
  - copy
```
public void copy(ValueMetaData vmd)
```
    Description copied from interface: ValueMetaData
    
    Copy state from the given value to this one. Do not copy mapping information.
    
    Specified by:
    
    copy in interface ValueMetaData
  - isUsedInOrderBy
```
public boolean isUsedInOrderBy()
```
    Check if this field is used by other field as "order by" value.
    
    Since:
    
    1.1.0
  - setUsedInOrderBy
```
public void setUsedInOrderBy(boolean isUsed)
```
    Whether this field is used by other field as "order by" value .
    
    Since:
    
    1.1.0
  - isValueGenerated
```
public boolean isValueGenerated()
```
  - setValueGenerated
```
public void setValueGenerated(boolean generated)
```
  - isElementCollection
```
public boolean isElementCollection()
```
  - setElementCollection
```
public void setElementCollection(boolean isElementCollection)
```
  - getMappedByIdValue
```
public String getMappedByIdValue()
```
  - setMappedByIdValue
```
public void setMappedByIdValue(String mappedByIdValue)
```
  - isMappedById
```
public boolean isMappedById()
```
  - getAccessType
```
public int getAccessType()
```
    Gets the access type used by this field. If no access type is set for this field then return the access type used by the declaring class.
  - setAccessType
```
public void setAccessType(int fCode)
```
    Sets access type of this field. The access code is verified for validity as well as against the access style used by the declaring class.
  - getAssociationType
```
public int getAssociationType()
```
  - setAssociationType
```
public void setAssociationType(int type)
```
  - isPersistentCollection
```
public boolean isPersistentCollection()
```
  - setPersistentCollection
```
public void setPersistentCollection(boolean persistentCollection)
```
  - getRelationType
```
public Class<?> getRelationType()
```
  - isDelayCapable
```
public boolean isDelayCapable()
```
  - setDelayCapable
```
public void setDelayCapable(Boolean delayCapable)
```
  - getUseSchemaElement
```
public boolean getUseSchemaElement()
```
    Whether to include schema name in generated files
  - setUseSchemaElement
```
public void setUseSchemaElement(boolean _useSchemaElement)
```
    Whether to include schema name in generated files
  - getSetterName
```
public String getSetterName()
```

Class FieldMetaData

Nested Class Summary

Field Summary

Fields inherited from class org.apache.openjpa.meta.Extensions

Fields inherited from interface org.apache.openjpa.meta.ValueMetaData

Fields inherited from interface org.apache.openjpa.meta.MetaDataModes

Fields inherited from interface org.apache.openjpa.lib.xml.Commentable

Constructor Summary

Method Summary

Methods inherited from class org.apache.openjpa.meta.Extensions

Methods inherited from class java.lang.Object

Field Detail

NULL_UNSET

NULL_NONE

NULL_DEFAULT

NULL_EXCEPTION

MANAGE_PERSISTENT

MANAGE_TRANSACTIONAL

MANAGE_NONE

ONE_TO_ONE

ONE_TO_MANY

MANY_TO_ONE

MANY_TO_MANY

Constructor Detail

FieldMetaData

Method Detail

backingMember

getBackingMember

getRepository

getDefiningMetaData

getDeclaringType

setDeclaringType

getDeclaringMetaData

getName

getFullName

getFullName

getRealName

getValue

getKey

getElement

isMapped

getProxyType

setProxyType

getInitializer

setInitializer

isTransient

setTransient

getIndex

setIndex

getDeclaredIndex

setDeclaredIndex

getListingIndex

setListingIndex

getPrimaryKeyIndex

setPrimaryKeyIndex

getManagement

setManagement

isPrimaryKey

setPrimaryKey

getObjectIdFieldTypeCode

getObjectIdFieldType

isVersion

setVersion

isInDefaultFetchGroup

setInDefaultFetchGroup

isDefaultFetchGroupExplicit

setDefaultFetchGroupExplicit

getCustomFetchGroups

getLoadFetchGroup

setLoadFetchGroup

isInFetchGroup

setInFetchGroup

getNullValue

setNullValue

isExplicit

setExplicit

getMappedBy

setMappedBy

getMappedByMetaData

getMappedByField