java.lang.Object
- org.apache.openjpa.meta.Extensions
- - org.apache.openjpa.meta.ClassMetaData
  - - org.apache.openjpa.jdbc.meta.ClassMapping

All Implemented Interfaces:

Serializable, Comparable<ClassMetaData>, ClassStrategy, Strategy, ValueListener, SourceTracker, Commentable, MetaDataContext, MetaDataModes
```
public class ClassMapping
extends ClassMetaData
implements ClassStrategy
```
Specialization of metadata for relational databases.

Author:

Abe White

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static ClassMapping[] EMPTY_MAPPINGS
- Fields inherited from class org.apache.openjpa.meta.ClassMetaData
  ACCESS_EXPLICIT, ACCESS_FIELD, ACCESS_PROPERTY, ACCESS_UNKNOWN, DEFAULT_STRING, ID_APPLICATION, ID_DATASTORE, ID_UNKNOWN, SYNTHETIC
- Fields inherited from class org.apache.openjpa.meta.Extensions
  OPENJPA
- Fields inherited from interface org.apache.openjpa.lib.xml.Commentable
  EMPTY_COMMENTS
- 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.meta.SourceTracker
  SRC_ANNOTATIONS, SRC_OTHER, SRC_XML

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`ClassMapping(Class type, MappingRepository repos)`	Constructor.
`protected`	`ClassMapping(ValueMetaData vmd)`	Embedded constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`FieldMapping`	`addDeclaredFieldMapping(String name, Class type)`	Convenience method to perform cast from `ClassMetaData.addDeclaredField(java.lang.String, java.lang.Class<?>)`.
`Joinable`	`assertJoinable(Column col)`	Return the joinable for the given column, or throw an exception if none is available.
`protected void`	`clearDefinedFieldCache()`	Clear defined field data.
`void`	`clearMapping()`	Clear mapping information, including strategy.
`protected void`	`clearSubclassCache()`	Clear cached subclass data.
`void`	`copy(ClassMetaData cls)`	Copy the metadata from the given instance to this one.
`void`	`customDelete(OpenJPAStateManager sm, JDBCStore store)`	Override this method to customize flushing this mapping.
`void`	`customInsert(OpenJPAStateManager sm, JDBCStore store)`	Override this method to customize flushing this mapping.
`ResultObjectProvider`	`customLoad(JDBCStore store, boolean subclasses, JDBCFetchConfiguration fetch, long startIdx, long endIdx)`	Implement this method to customize obtaining a result containing all instances of this class.
`boolean`	`customLoad(OpenJPAStateManager sm, JDBCStore store, JDBCFetchConfiguration fetch, Result result)`	Implement this method to customize loading from a `Result` into an instance.
`boolean`	`customLoad(OpenJPAStateManager sm, JDBCStore store, PCState state, JDBCFetchConfiguration fetch)`	Implement this method to load the state of a given object, without a previous `Result`.
`void`	`customUpdate(OpenJPAStateManager sm, JDBCStore store)`	Override this method to customize flushing this mapping.
`void`	`delete(OpenJPAStateManager sm, JDBCStore store, RowManager rm)`	Set the where values appropriately to delete the proper instance, and set all relations on non-secondary tables as updates.
`String`	`getAlias()`	Return the alias of this strategy.
`ColumnIO`	`getColumnIO()`	I/O information on the key columns / join key.
`FieldMapping`	`getDeclaredFieldMapping(int index)`	Convenience method to perform cast from `ClassMetaData.getDeclaredField(int)`.
`FieldMapping`	`getDeclaredFieldMapping(String name)`	Convenience method to perform cast from `ClassMetaData.getDeclaredField(int)`.
`FieldMapping[]`	`getDeclaredFieldMappings()`	Convenience method to perform cast from `ClassMetaData.getDeclaredFields()`.
`FieldMapping[]`	`getDeclaredUnmanagedFieldMappings()`	Convenience method to perform cast from `ClassMetaData.getDeclaredUnmanagedFields()`.
`FieldMapping[]`	`getDefaultFetchGroupFieldMappings()`	Convenience method to perform cast from `ClassMetaData.getDefaultFetchGroupFields()`.
`FieldMapping[]`	`getDefinedFieldMappings()`	Convenience method to perform cast from `ClassMetaData.getDefinedFields()`.
`FieldMapping[]`	`getDefinedFieldMappingsInListingOrder()`	Convenience method to perform cast from `ClassMetaData.getDefinedFieldsInListingOrder()`.
`Discriminator`	`getDiscriminator()`	The class discriminator.
`ValueMapping`	`getEmbeddingMapping()`	Convenience method to perform cast from `ClassMetaData.getEmbeddingMetaData()`
`FieldMapping`	`getFieldMapping(int index)`	Convenience method to perform cast from `ClassMetaData.getField(int)`.
`FieldMapping`	`getFieldMapping(String name)`	Convenience method to perform cast from `ClassMetaData.getField(int)`.
`FieldMapping[]`	`getFieldMappings()`	Convenience method to perform cast from `ClassMetaData.getFields()`.
`FieldMapping[]`	`getFieldMappingsInListingOrder()`	Convenience method to perform cast from `ClassMetaData.getFieldsInListingOrder()`.
`ClassMapping[]`	`getIndependentAssignableMappings()`	Returns the closest-derived list of non-inter-joinable mapped types assignable to this type.
`Joinable`	`getJoinable(Column col)`	Return the `Joinable` for the given column.
`ClassMapping[]`	`getJoinablePCSubclassMappings()`	Return mapped subclasses that are reachable via joins.
`ClassMapping`	`getJoinablePCSuperclassMapping()`	Return the nearest mapped superclass that can join to this class.
`ForeignKey`	`getJoinForeignKey()`	Foreign key linking the primary key columns to the superclass table, or null if none.
`ClassMapping[]`	`getMappedPCSubclassMappings()`	Convenience method to perform cast from `ClassMetaData.getMappedPCSubclassMetaDatas()`.
`ClassMapping`	`getMappedPCSuperclassMapping()`	Convenience method to perform cast from `ClassMetaData.getMappedPCSuperclassMetaData()`.
`ClassMappingInfo`	`getMappingInfo()`	Raw mapping data.
`MappingRepository`	`getMappingRepository()`	Convenience method to perform cast from `ClassMetaData.getRepository()`.
`Object`	`getObjectId(JDBCStore store, Result res, ForeignKey fk, boolean subs, Joins joins)`	Return the oid value stored in the result.
`ClassMapping[]`	`getPCSubclassMappings()`	Convenience method to perform cast from `ClassMetaData.getPCSubclassMetaDatas()`.
`ClassMapping`	`getPCSuperclassMapping()`	Convenience method to perform cast from `ClassMetaData.getPCSuperclassMetaData()`.
`Column[]`	`getPrimaryKeyColumns()`	The columns this mapping uses to uniquely identify an object.
`FieldMapping[]`	`getPrimaryKeyFieldMappings()`	Convenience method to perform cast from `ClassMetaData.getPrimaryKeyFields()`.
`ClassStrategy`	`getStrategy()`	The strategy used to map this mapping.
`int`	`getSubclassFetchMode()`	The subclass fetch mode, as one of the eager constants in `JDBCFetchConfiguration`.
`Table`	`getTable()`	The mapping's primary table.
`Version`	`getVersion()`	The version indicator.
`FieldMapping`	`getVersionFieldMapping()`	Convenience method to perform cast from `ClassMetaData.getVersionField()`.
`void`	`initialize()`	Perform caching and other initialization operations.
`protected void`	`initializeMapping()`	Initialize mapping.
`void`	`insert(OpenJPAStateManager sm, JDBCStore store, RowManager rm)`	Set values for the mapping into the proper rows.
`Boolean`	`isCustomDelete(OpenJPAStateManager sm, JDBCStore store)`	Return `Boolean.FALSE` if this mapping does not customize the delete process, `Boolean.TRUE` if it does, or null if it does customize the delete, but also relies on the standard delete method being called.
`Boolean`	`isCustomInsert(OpenJPAStateManager sm, JDBCStore store)`	Return `Boolean.FALSE` if this mapping does not customize the insert process, `Boolean.TRUE` if it does, or null if it does customize the insert, but also relies on the standard insert method being called.
`Boolean`	`isCustomUpdate(OpenJPAStateManager sm, JDBCStore store)`	Return `Boolean.FALSE` if this mapping does not customize the update process, `Boolean.TRUE` if it does, or null if it does customize the update, but also relies on the standard update method being called.
`Boolean`	`isForeignKeyObjectId(ForeignKey fk)`	Return whether the columns of the given foreign key to this mapping can be used to construct an object id for this type.
`boolean`	`isMapped()`	Returns true if this class does not use the "none" strategy (including if it has a null strategy, and therefore is probably in the process of being mapped).
`boolean`	`isPrimaryKeyObjectId(boolean hasAll)`	Return true if the this class' primary key columns correspond to the base class' primary key columns used to construct oid values.
`boolean`	`isVerticalStrategy()`
`Joins`	`joinSuperclass(Joins joins, boolean toThis)`	Join the mapping and its superclass.
`void`	`map(boolean adapt)`	Map the owning mapping using this strategy.
`void`	`refSchemaComponents()`
`protected void`	`resolveMapping(boolean runtime)`	Resolve mapping data.
`void`	`setClassMapping(ClassMapping owner)`	Set the class mapping using this strategy.
`void`	`setColumnIO(ColumnIO io)`	I/O information on the key columns / join key.
`protected void`	`setDescribedType(Class type)`	Set the class described by this metadata.
`void`	`setJoinable(Column col, Joinable joinable)`	Add the given column-to-joinable mapping.
`void`	`setJoinForeignKey(ForeignKey fk)`	Foreign key linking the primary key columns to the superclass table, or null if none.
`void`	`setPrimaryKeyColumns(Column[] cols)`	The columns this mapping uses to uniquely identify an object.
`void`	`setStrategy(ClassStrategy strategy, Boolean adapt)`	The strategy used to map this mapping.
`void`	`setSubclassFetchMode(int mode)`	The subclass fetch mode, as one of the eager constants in `JDBCFetchConfiguration`.
`void`	`setTable(Table table)`	The mapping's primary table.
`boolean`	`supportsEagerSelect(Select sel, OpenJPAStateManager sm, JDBCStore store, ClassMapping base, JDBCFetchConfiguration fetch)`	Return true if this strategy can perform the given select from the given `base` mapping.
`void`	`syncMappingInfo()`	Update `MappingInfo` with our current mapping information.
`Object`	`toDataStoreValue(Object obj, Column[] cols, JDBCStore store)`	Return the given column value(s) for the given object.
`void`	`update(OpenJPAStateManager sm, JDBCStore store, RowManager rm)`	Set values for the mapping into the proper rows.
`protected boolean`	`validateDataStoreExtensionPrefix(String prefix)`	Return true if extensions starting with the given official datastore prefix should be validated for this runtime.

Methods inherited from class org.apache.openjpa.meta.ClassMetaData
addDeclaredFetchGroup, addDeclaredField, addDeclaredInterface, addDefinedSuperclassField, addExtensionKeys, clearAllFieldCache, clearFieldCache, compareTo, defineSuperclassFields, equals, getAccessType, getCacheEnabled, getColNumber, getComments, getCustomFetchGroups, getDataCache, getDataCacheEnabled, getDataCacheName, getDataCacheTimeout, getDeclaredFetchGroups, getDeclaredField, getDeclaredField, getDeclaredFieldNames, getDeclaredFields, getDeclaredInterfaces, getDeclaredUnmanagedFields, getDefaultFetchGroupFields, getDefinedFields, getDefinedFieldsInListingOrder, getDefinedSuperclassField, getDescribedType, getDescribedTypeString, getDetachedState, getDetachedStateField, getEmbeddingMetaData, getEnvClassLoader, getExtraFieldDataIndex, getExtraFieldDataLength, getFetchGroup, getField, getField, getFieldNames, getFields, getFieldsInListingOrder, getIdClass, getIdentitySequenceMetaData, getIdentitySequenceName, getIdentityStrategy, getIdentityType, getInterfaceAliasedProperties, getInterfaceImpl, getInterfacePropertyAlias, getLifecycleMetaData, getLineNumber, getListingIndex, getLrsFields, getMappedPCSubclassMetaDatas, getMappedPCSuperclassMetaData, getMappyedByIdFields, getObjectIdType, getPCSubclasses, getPCSubclassMetaDatas, getPCSuperclass, getPCSuperclassMetaData, getPkAndNonPersistentManagedFmdIndexes, getPrimaryKeyFields, getProxyFields, getRepository, getRequiresExtent, getResolve, getResourceName, getSourceFile, getSourceMode, getSourceName, getSourceScope, getSourceType, getSuperclassField, getTypeAlias, getUseSchemaElement, getVersionField, hasAbstractPKField, hashCode, hasInverseManagedFields, hasPKFieldsFromAbstractClass, isAbstract, isAccessibleField, isDetachable, isEmbeddable, isEmbeddedOnly, isExplicitAccess, isIntercepting, isManagedInterface, isMixedAccess, isObjectIdTypeShared, isOpenJPAIdentity, registerForValueUpdate, removeDeclaredFetchGroup, removeDeclaredField, removeDeclaredInterface, removeDefinedSuperclassField, resolve, resolveMeta, setAbstract, setAccessType, setCacheEnabled, setColNumber, setComments, setDataCacheName, setDataCacheTimeout, setDetachable, setDetachedState, setEmbeddable, setEmbeddedOnly, setEnvClassLoader, setIdentitySequenceName, setIdentityStrategy, setIdentityType, setIntercepting, setInterfaceImpl, setInterfacePropertyAlias, setLineNumber, setListingIndex, setManagedInterface, setObjectIdType, setPCSuperclass, setPCSuperclassMetaData, setRequiresExtent, setResolve, setResolve, setSource, setSourceMode, setSourceMode, setTypeAlias, setUseSchemaElement, toString, useIdClassFromParent, usesDetachedState, validateMapping, validateMeta, valueChanged

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

- Field Detail
  - EMPTY_MAPPINGS
```
public static final ClassMapping[] EMPTY_MAPPINGS
```
- Constructor Detail
  - ClassMapping
```
protected ClassMapping(Class type,
                       MappingRepository repos)
```
    Constructor. Supply described type and owning repository.
  - ClassMapping
```
protected ClassMapping(ValueMetaData vmd)
```
    Embedded constructor. Supply embedding value and owning repository.
- Method Detail
  - getDiscriminator
```
public Discriminator getDiscriminator()
```
    The class discriminator.
  - getVersion
```
public Version getVersion()
```
    The version indicator.
  - getObjectId
```
public Object getObjectId(JDBCStore store,
                          Result res,
                          ForeignKey fk,
                          boolean subs,
                          Joins joins)
                   throws SQLException
```
    Return the oid value stored in the result. This implementation will recurse until it finds an ancestor class who uses oid values for its primary key.
    
    Parameters:
    
    fk - if non-null, use the local columns of the given foreign key in place of this class' primary key columns
    
    Throws:
    
    SQLException
    
    See Also:
    
    isPrimaryKeyObjectId(boolean)
  - toDataStoreValue
```
public Object toDataStoreValue(Object obj,
                               Column[] cols,
                               JDBCStore store)
```
    Return the given column value(s) for the given object. The given columns will be primary key columns of this mapping, but may be in any order. If there is only one column, return its value. If there are multiple columns, return an object array of their values, in the same order the columns are given.
  - assertJoinable
```
public Joinable assertJoinable(Column col)
```
    Return the joinable for the given column, or throw an exception if none is available.
  - getJoinable
```
public Joinable getJoinable(Column col)
```
    Return the Joinable for the given column. Any column that another mapping joins to must be controlled by a joinable.
  - setJoinable
```
public void setJoinable(Column col,
                        Joinable joinable)
```
    Add the given column-to-joinable mapping.
  - isForeignKeyObjectId
```
public Boolean isForeignKeyObjectId(ForeignKey fk)
```
    Return whether the columns of the given foreign key to this mapping can be used to construct an object id for this type. This is a relatively expensive operation; its results should be cached.
    
    Returns:
    
    Boolean.TRUE if the foreign key contains all oid columns, null if it contains only some columns, or Boolean.FALSE if it contains non-oid columns
  - getMappingInfo
```
public ClassMappingInfo getMappingInfo()
```
    Raw mapping data.
  - getStrategy
```
public ClassStrategy getStrategy()
```
    The strategy used to map this mapping.
  - setStrategy
```
public void setStrategy(ClassStrategy strategy,
                        Boolean adapt)
```
    The strategy used to map this mapping. The adapt parameter determines whether to adapt when mapping the strategy; use null if the strategy should not be mapped.
  - getTable
```
public Table getTable()
```
    The mapping's primary table.
  - setTable
```
public void setTable(Table table)
```
    The mapping's primary table.
  - getPrimaryKeyColumns
```
public Column[] getPrimaryKeyColumns()
```
    The columns this mapping uses to uniquely identify an object. These will typically be the primary key columns or the columns this class uses to link to its superclass table.
  - setPrimaryKeyColumns
```
public void setPrimaryKeyColumns(Column[] cols)
```
    The columns this mapping uses to uniquely identify an object. These will typically be the primary key columns or the columns this class uses to link to its superclass table.
  - getColumnIO
```
public ColumnIO getColumnIO()
```
    I/O information on the key columns / join key.
  - setColumnIO
```
public void setColumnIO(ColumnIO io)
```
    I/O information on the key columns / join key.
  - getJoinForeignKey
```
public ForeignKey getJoinForeignKey()
```
    Foreign key linking the primary key columns to the superclass table, or null if none.
  - setJoinForeignKey
```
public void setJoinForeignKey(ForeignKey fk)
```
    Foreign key linking the primary key columns to the superclass table, or null if none.
  - refSchemaComponents
```
public void refSchemaComponents()
```
  - clearMapping
```
public void clearMapping()
```
    Clear mapping information, including strategy.
  - syncMappingInfo
```
public void syncMappingInfo()
```
    Update MappingInfo with our current mapping information.
  - setDescribedType
```
protected void setDescribedType(Class type)
```
    Description copied from class: ClassMetaData
    
    Set the class described by this metadata. The type may be reset when an embedded value changes its declared type.
    
    Overrides:
    
    setDescribedType in class ClassMetaData
  - getSubclassFetchMode
```
public int getSubclassFetchMode()
```
    The subclass fetch mode, as one of the eager constants in JDBCFetchConfiguration.
  - setSubclassFetchMode
```
public void setSubclassFetchMode(int mode)
```
    The subclass fetch mode, as one of the eager constants in JDBCFetchConfiguration.
  - getMappingRepository
```
public MappingRepository getMappingRepository()
```
    Convenience method to perform cast from ClassMetaData.getRepository().
  - getEmbeddingMapping
```
public ValueMapping getEmbeddingMapping()
```
    Convenience method to perform cast from ClassMetaData.getEmbeddingMetaData()
  - isMapped
```
public boolean isMapped()
```
    Returns true if this class does not use the "none" strategy (including if it has a null strategy, and therefore is probably in the process of being mapped).
    
    Overrides:
    
    isMapped in class ClassMetaData
  - getPCSuperclassMapping
```
public ClassMapping getPCSuperclassMapping()
```
    Convenience method to perform cast from ClassMetaData.getPCSuperclassMetaData().
  - getMappedPCSuperclassMapping
```
public ClassMapping getMappedPCSuperclassMapping()
```
    Convenience method to perform cast from ClassMetaData.getMappedPCSuperclassMetaData().
  - getJoinablePCSuperclassMapping
```
public ClassMapping getJoinablePCSuperclassMapping()
```
    Return the nearest mapped superclass that can join to this class.
  - getPCSubclassMappings
```
public ClassMapping[] getPCSubclassMappings()
```
    Convenience method to perform cast from ClassMetaData.getPCSubclassMetaDatas().
  - getMappedPCSubclassMappings
```
public ClassMapping[] getMappedPCSubclassMappings()
```
    Convenience method to perform cast from ClassMetaData.getMappedPCSubclassMetaDatas().
  - getJoinablePCSubclassMappings
```
public ClassMapping[] getJoinablePCSubclassMappings()
```
    Return mapped subclasses that are reachable via joins.
  - getIndependentAssignableMappings
```
public ClassMapping[] getIndependentAssignableMappings()
```
    Returns the closest-derived list of non-inter-joinable mapped types assignable to this type. May return this mapping.
  - getFieldMappings
```
public FieldMapping[] getFieldMappings()
```
    Convenience method to perform cast from ClassMetaData.getFields().
  - getDeclaredFieldMappings
```
public FieldMapping[] getDeclaredFieldMappings()
```
    Convenience method to perform cast from ClassMetaData.getDeclaredFields().
  - getPrimaryKeyFieldMappings
```
public FieldMapping[] getPrimaryKeyFieldMappings()
```
    Convenience method to perform cast from ClassMetaData.getPrimaryKeyFields().
  - getVersionFieldMapping
```
public FieldMapping getVersionFieldMapping()
```
    Convenience method to perform cast from ClassMetaData.getVersionField().
  - getDefaultFetchGroupFieldMappings
```
public FieldMapping[] getDefaultFetchGroupFieldMappings()
```
    Convenience method to perform cast from ClassMetaData.getDefaultFetchGroupFields().
  - getDefinedFieldMappings
```
public FieldMapping[] getDefinedFieldMappings()
```
    Convenience method to perform cast from ClassMetaData.getDefinedFields().
  - getFieldMappingsInListingOrder
```
public FieldMapping[] getFieldMappingsInListingOrder()
```
    Convenience method to perform cast from ClassMetaData.getFieldsInListingOrder().
  - getDefinedFieldMappingsInListingOrder
```
public FieldMapping[] getDefinedFieldMappingsInListingOrder()
```
    Convenience method to perform cast from ClassMetaData.getDefinedFieldsInListingOrder().
  - getFieldMapping
```
public FieldMapping getFieldMapping(int index)
```
    Convenience method to perform cast from ClassMetaData.getField(int).
  - getDeclaredFieldMapping
```
public FieldMapping getDeclaredFieldMapping(int index)
```
    Convenience method to perform cast from ClassMetaData.getDeclaredField(int).
  - getFieldMapping
```
public FieldMapping getFieldMapping(String name)
```
    Convenience method to perform cast from ClassMetaData.getField(int).
  - getDeclaredFieldMapping
```
public FieldMapping getDeclaredFieldMapping(String name)
```
    Convenience method to perform cast from ClassMetaData.getDeclaredField(int).
  - getDeclaredUnmanagedFieldMappings
```
public FieldMapping[] getDeclaredUnmanagedFieldMappings()
```
    Convenience method to perform cast from ClassMetaData.getDeclaredUnmanagedFields().
  - addDeclaredFieldMapping
```
public FieldMapping addDeclaredFieldMapping(String name,
                                            Class type)
```
    Convenience method to perform cast from ClassMetaData.addDeclaredField(java.lang.String, java.lang.Class<?>).
  - resolveMapping
```
protected void resolveMapping(boolean runtime)
```
    Description copied from class: ClassMetaData
    
    Resolve mapping data. Logs resolve message and resolves super by default.
    
    Overrides:
    
    resolveMapping in class ClassMetaData
  - initializeMapping
```
protected void initializeMapping()
```
    Description copied from class: ClassMetaData
    
    Initialize mapping. Logs init message by default.
    
    Overrides:
    
    initializeMapping in class ClassMetaData
  - clearDefinedFieldCache
```
protected void clearDefinedFieldCache()
```
    Description copied from class: ClassMetaData
    
    Clear defined field data.
    
    Overrides:
    
    clearDefinedFieldCache in class ClassMetaData
  - clearSubclassCache
```
protected void clearSubclassCache()
```
    Description copied from class: ClassMetaData
    
    Clear cached subclass data.
    
    Overrides:
    
    clearSubclassCache in class ClassMetaData
  - copy
```
public void copy(ClassMetaData cls)
```
    Description copied from class: ClassMetaData
    
    Copy the metadata from the given instance to this one. Do not copy mapping information.
    
    Overrides:
    
    copy in class ClassMetaData
  - validateDataStoreExtensionPrefix
```
protected boolean validateDataStoreExtensionPrefix(String prefix)
```
    Description copied from class: Extensions
    
    Return true if extensions starting with the given official datastore prefix should be validated for this runtime.
    
    Overrides:
    
    validateDataStoreExtensionPrefix in class Extensions
  - getAlias
```
public String getAlias()
```
    Description copied from interface: Strategy
    
    Return the alias of this strategy. For custom strategies, return the full class name.
    
    Specified by:
    
    getAlias in interface Strategy
  - map
```
public void map(boolean adapt)
```
    Description copied from interface: Strategy
    
    Map the owning mapping using this strategy.
    
    Specified by:
    
    map in interface Strategy
    
    Parameters:
    
    adapt - if true, use the owning mapping's raw mapping info to set its ORM data; if false, ORM data will already be set
  - initialize
```
public void initialize()
```
    Description copied from interface: Strategy
    
    Perform caching and other initialization operations. This method is called after Strategy.map(boolean), and after all related components have been mapped as well.
    
    Specified by:
    
    initialize in interface Strategy
  - insert
```
public void insert(OpenJPAStateManager sm,
                   JDBCStore store,
                   RowManager rm)
            throws SQLException
```
    Description copied from interface: Strategy
    
    Set values for the mapping into the proper rows. For class mappings, this method will be called only after the corresponding method has been called for all fields of this mapping.
    
    Specified by:
    
    insert in interface Strategy
    
    Throws:
    
    SQLException
  - update
```
public void update(OpenJPAStateManager sm,
                   JDBCStore store,
                   RowManager rm)
            throws SQLException
```
    Description copied from interface: Strategy
    
    Set values for the mapping into the proper rows.
    
    Specified by:
    
    update in interface Strategy
    
    Throws:
    
    SQLException
    
    See Also:
    
    Strategy.insert(org.apache.openjpa.kernel.OpenJPAStateManager, org.apache.openjpa.jdbc.kernel.JDBCStore, org.apache.openjpa.jdbc.sql.RowManager)
  - delete
```
public void delete(OpenJPAStateManager sm,
                   JDBCStore store,
                   RowManager rm)
            throws SQLException
```
    Description copied from interface: Strategy
    
    Set the where values appropriately to delete the proper instance, and set all relations on non-secondary tables as updates. This allows foreign key analysis.
    
    Specified by:
    
    delete in interface Strategy
    
    Throws:
    
    SQLException
    
    See Also:
    
    Strategy.insert(org.apache.openjpa.kernel.OpenJPAStateManager, org.apache.openjpa.jdbc.kernel.JDBCStore, org.apache.openjpa.jdbc.sql.RowManager)
  - isCustomInsert
```
public Boolean isCustomInsert(OpenJPAStateManager sm,
                              JDBCStore store)
```
    Description copied from interface: Strategy
    
    Return Boolean.FALSE if this mapping does not customize the insert process, Boolean.TRUE if it does, or null if it does customize the insert, but also relies on the standard insert method being called. Implement the Strategy.customInsert(org.apache.openjpa.kernel.OpenJPAStateManager, org.apache.openjpa.jdbc.kernel.JDBCStore) method to implement the custom insertion behavior.
    
    Specified by:
    
    isCustomInsert in interface Strategy
  - isCustomUpdate
```
public Boolean isCustomUpdate(OpenJPAStateManager sm,
                              JDBCStore store)
```
    Description copied from interface: Strategy
    
    Return Boolean.FALSE if this mapping does not customize the update process, Boolean.TRUE if it does, or null if it does customize the update, but also relies on the standard update method being called. Implement the Strategy.customUpdate(org.apache.openjpa.kernel.OpenJPAStateManager, org.apache.openjpa.jdbc.kernel.JDBCStore) method to override the default update behavior.
    
    Specified by:
    
    isCustomUpdate in interface Strategy
  - isCustomDelete
```
public Boolean isCustomDelete(OpenJPAStateManager sm,
                              JDBCStore store)
```
    Description copied from interface: Strategy
    
    Return Boolean.FALSE if this mapping does not customize the delete process, Boolean.TRUE if it does, or null if it does customize the delete, but also relies on the standard delete method being called. Implement the Strategy.customDelete(org.apache.openjpa.kernel.OpenJPAStateManager, org.apache.openjpa.jdbc.kernel.JDBCStore) method to override the default deletion behavior.
    
    Specified by:
    
    isCustomDelete in interface Strategy
  - customInsert
```
public void customInsert(OpenJPAStateManager sm,
                         JDBCStore store)
                  throws SQLException
```
    Description copied from interface: Strategy
    
    Override this method to customize flushing this mapping. For classes, this method must also flush all fields. For fields, this method is called after the owning object is inserted, so if this field is in a row with other fields, that row will already exist.
    
    Specified by:
    
    customInsert in interface Strategy
    
    Throws:
    
    SQLException
  - customUpdate
```
public void customUpdate(OpenJPAStateManager sm,
                         JDBCStore store)
                  throws SQLException
```
    Description copied from interface: Strategy
    
    Override this method to customize flushing this mapping. For classes, this method must also flush all fields.
    
    Specified by:
    
    customUpdate in interface Strategy
    
    Throws:
    
    SQLException
  - customDelete
```
public void customDelete(OpenJPAStateManager sm,
                         JDBCStore store)
                  throws SQLException
```
    Description copied from interface: Strategy
    
    Override this method to customize flushing this mapping. For classes, this method must also flush all fields. For fields, this method will be called after the owning object is deleted.
    
    Specified by:
    
    customDelete in interface Strategy
    
    Throws:
    
    SQLException
  - setClassMapping
```
public void setClassMapping(ClassMapping owner)
```
    Description copied from interface: ClassStrategy
    
    Set the class mapping using this strategy. This will be called before use.
    
    Specified by:
    
    setClassMapping in interface ClassStrategy
  - isPrimaryKeyObjectId
```
public boolean isPrimaryKeyObjectId(boolean hasAll)
```
    Description copied from interface: ClassStrategy
    
    Return true if the this class' primary key columns correspond to the base class' primary key columns used to construct oid values. Base classes always return true. Classes that join to the base class table, though, may not always join using the same columns the base class uses for oid values, or may not use all the columns. When performing a select, we will join down to the most-derived class that is identified by oid values. We cannot use non-primary key field values for joining during selects, because the field values to join on might be the ones we're trying to select! Similarly, we can only reconstruct oid values for selected objects using classes whose primary keys store oid values.
    
    Specified by:
    
    isPrimaryKeyObjectId in interface ClassStrategy
    
    Parameters:
    
    hasAll - if true, there must be a primary key column for every base class primary key column; if false the primary key must only match a subset of the base class primary key columns
  - joinSuperclass
```
public Joins joinSuperclass(Joins joins,
                            boolean toThis)
```
    Description copied from interface: ClassStrategy
    
    Join the mapping and its superclass.
    
    Specified by:
    
    joinSuperclass in interface ClassStrategy
    
    toThis - if false, inner join to the superclass table; if true, outer join from the superclass table to this table
  - supportsEagerSelect
```
public boolean supportsEagerSelect(Select sel,
                                   OpenJPAStateManager sm,
                                   JDBCStore store,
                                   ClassMapping base,
                                   JDBCFetchConfiguration fetch)
```
    Description copied from interface: ClassStrategy
    
    Return true if this strategy can perform the given select from the given base mapping. The given state manager may be null if selecting multiple instances.
    
    Specified by:
    
    supportsEagerSelect in interface ClassStrategy
  - customLoad
```
public ResultObjectProvider customLoad(JDBCStore store,
                                       boolean subclasses,
                                       JDBCFetchConfiguration fetch,
                                       long startIdx,
                                       long endIdx)
                                throws SQLException
```
    Description copied from interface: ClassStrategy
    
    Implement this method to customize obtaining a result containing all instances of this class. Return null for standard loading.
    
    Specified by:
    
    customLoad in interface ClassStrategy
    
    Throws:
    
    SQLException
  - customLoad
```
public boolean customLoad(OpenJPAStateManager sm,
                          JDBCStore store,
                          PCState state,
                          JDBCFetchConfiguration fetch)
                   throws SQLException,
                          ClassNotFoundException
```
    Description copied from interface: ClassStrategy
    
    Implement this method to load the state of a given object, without a previous Result. Return true if this method handles the load. If the object does not exist in the data store, simply take no action on it (but still return true). Return false to use default loading.
    
    Specified by:
    
    customLoad in interface ClassStrategy
    
    state - if non-null, then you must initialize the state and persistent object of the given state manager (after determining the actual class of the object from the database, if there are possible persistent subclasses); initialization looks like this: sm.initialize (pcClass, state)
    
    Throws:
    
    SQLException
    
    ClassNotFoundException
  - customLoad
```
public boolean customLoad(OpenJPAStateManager sm,
                          JDBCStore store,
                          JDBCFetchConfiguration fetch,
                          Result result)
                   throws SQLException
```
    Description copied from interface: ClassStrategy
    
    Implement this method to customize loading from a Result into an instance. Return true if this mapping handles the load; false if normal loading should proceed after calling this method.
    
    Specified by:
    
    customLoad in interface ClassStrategy
    
    Throws:
    
    SQLException
  - isVerticalStrategy
```
public boolean isVerticalStrategy()
```

Class ClassMapping

Field Summary

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

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

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

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

Fields inherited from interface org.apache.openjpa.lib.meta.SourceTracker

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

Field Detail

EMPTY_MAPPINGS

Constructor Detail

ClassMapping

ClassMapping

Method Detail

getDiscriminator

getVersion

getObjectId

toDataStoreValue

assertJoinable

getJoinable

setJoinable

isForeignKeyObjectId

getMappingInfo

getStrategy

setStrategy

getTable

setTable

getPrimaryKeyColumns

setPrimaryKeyColumns

getColumnIO

setColumnIO

getJoinForeignKey

setJoinForeignKey

refSchemaComponents

clearMapping

syncMappingInfo

setDescribedType

getSubclassFetchMode

setSubclassFetchMode

getMappingRepository

getEmbeddingMapping

isMapped

getPCSuperclassMapping

getMappedPCSuperclassMapping

getJoinablePCSuperclassMapping

getPCSubclassMappings

getMappedPCSubclassMappings

getJoinablePCSubclassMappings

getIndependentAssignableMappings

getFieldMappings

getDeclaredFieldMappings

getPrimaryKeyFieldMappings

getVersionFieldMapping

getDefaultFetchGroupFieldMappings

getDefinedFieldMappings

getFieldMappingsInListingOrder

getDefinedFieldMappingsInListingOrder

getFieldMapping

getDeclaredFieldMapping

getFieldMapping

getDeclaredFieldMapping

getDeclaredUnmanagedFieldMappings

addDeclaredFieldMapping

resolveMapping

initializeMapping

clearDefinedFieldCache

clearSubclassCache

copy

validateDataStoreExtensionPrefix

getAlias

map

initialize

insert

update

delete

isCustomInsert