org.apache.openjpa.meta
Class ClassMetaData

java.lang.Object
  org.apache.openjpa.meta.Extensions
      org.apache.openjpa.meta.ClassMetaData

All Implemented Interfaces:

Serializable, Comparable, SourceTracker, Commentable, MetaDataContext, MetaDataModes

Direct Known Subclasses:

ClassMapping

public class ClassMetaData
extends Extensions
implements Comparable, SourceTracker, MetaDataContext, MetaDataModes, Commentable

Contains metadata about a persistent type. This metadata is available both at enhancement time and runtime. Note that this class employs aggressive caching, and therefore it is important to finalize the configuration of field metadatas before invoking methods that depend on that configuration, such as getPrimaryKeyFields().

Author:

Abe White

See Also:

Serialized Form

Field Summary

static int	ACCESS_FIELD Persistent attributes are accessed via direct field access.
static int	ACCESS_PROPERTY Persistent attributes are accessed via setters and getters.
static int	ACCESS_UNKNOWN Unknown access type.
protected static String	DEFAULT_STRING
static int	ID_APPLICATION Application identity type.
static int	ID_DATASTORE Datastore identity type.
static int	ID_UNKNOWN Unkonwn identity type.
static String	SYNTHETIC Value for using a synthetic detached state field, which is the default.

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

OPENJPA

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

SRC_ANNOTATIONS, SRC_OTHER, SRC_XML

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

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

protected	ClassMetaData(Class type, MetaDataRepository repos) Constructor.
protected	ClassMetaData(ValueMetaData owner) Embedded constructor.

Method Summary

FetchGroup	addDeclaredFetchGroup(String name) Adds fetch group of the given name, or returns existing instance.
FieldMetaData	addDeclaredField(String name, Class type) Add a new field metadata to this class.
void	addDeclaredInterface(Class iface) Explicitly declare the given interface among the ones this class implements.
FieldMetaData	addDefinedSuperclassField(String name, Class type, Class sup) Add a new defined superclass field metadata to this class.
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.
protected void	clearAllFieldCache() Clear cached field data.
protected void	clearDefinedFieldCache() Clear defined field data.
protected void	clearFieldCache() Clear cached field data.
protected void	clearSubclassCache() Clear cached subclass data.
int	compareTo(Object other)
void	copy(ClassMetaData meta) Copy the metadata from the given instance to this one.
void	defineSuperclassFields(boolean force) Incorporate superclass fields redefined in this subclass into this metadata.
boolean	equals(Object other)
int	getAccessType() The access type used by this class.
String[]	getComments() Return comments, or empty array if none.
FetchGroup[]	getCustomFetchGroups() Return all fetch groups for this type, including superclass groups.
DataCache	getDataCache() Return the data cache for this class, or null if it is not cachable.
String	getDataCacheName() The name of the datacache to use for this class.
int	getDataCacheTimeout() The cache timeout for this class.
FetchGroup[]	getDeclaredFetchGroups() Return the fetch groups declared explicitly in this type.
FieldMetaData	getDeclaredField(int index) Return the metadata for the persistent or transactional field with the given relative index.
FieldMetaData	getDeclaredField(String name) Return the metadata for the persistent or transactional field with the given name, without including superclass fields.
FieldMetaData[]	getDeclaredFields() Return only the fields for this class, without superclass fields.
Class[]	getDeclaredInterfaces() Return all explicitly declared interfaces this class implements.
FieldMetaData[]	getDeclaredUnmanagedFields() Return any fields that were added as non-managed.
FieldMetaData[]	getDefaultFetchGroupFields() Return the list of fields in the default fetch group, including superclass fields, or an empty array if none.
FieldMetaData[]	getDefinedFields() Returns an array of all the fields defined by this class.
FieldMetaData[]	getDefinedFieldsInListingOrder() Returns all fields defined by this class in the order they are listed in the metadata file.
FieldMetaData	getDefinedSuperclassField(String name) Return the defined superclass field with the given name, or null if none.
Class	getDescribedType() The persistence capable class described by this metadata.
String	getDetachedState() The name of the detach state field, or null if none.
Field	getDetachedStateField() Return the detach state field, or null if none.
ValueMetaData	getEmbeddingMetaData() If this metadata is for an embedded object, returning the owning value.
ClassLoader	getEnvClassLoader() The environmental loader used when loading this metadata.
int	getExtraFieldDataIndex(int field) Return the impl / intermediate field data index of the given field in the compacted array, or -1 if the field does not use extra data.
int	getExtraFieldDataLength() Return the number of fields that use impl or intermediate data, in order to create a compacted array for storage of said data.
FetchGroup	getFetchGroup(String name) Gets a named fecth group.
FieldMetaData	getField(int index) Return the metadata for the persistent or transactional field with the given absolute index.
FieldMetaData	getField(String name) Return the metadata for the persistent or transactional field with the given name.
FieldMetaData[]	getFields() Return all field metadatas, including superclass fields.
FieldMetaData[]	getFieldsInListingOrder() Returns all fields in the order they are listed in the metadata file.
SequenceMetaData	getIdentitySequenceMetaData() Metadata for the datastore identity sequence.
String	getIdentitySequenceName() The datastore identity sequence name, or null for none.
int	getIdentityStrategy() The strategy to use for datastore identity generation.
int	getIdentityType() The type of identity being used.
String[]	getInterfaceAliasedProperties(Class iface) Return all aliases property named for the given interface.
Class	getInterfaceImpl() Return the managed interface implementor if any.
String	getInterfacePropertyAlias(Class iface, String orig) Get local field alias for the given interface property.
LifecycleMetaData	getLifecycleMetaData() Information about lifecycle callbacks for this class.
int	getListingIndex() The index in which this class was listed in the metadata.
ClassMetaData[]	getMappedPCSubclassMetaDatas() Return all mapped subclasses.
ClassMetaData	getMappedPCSuperclassMetaData() Return the closest mapped superclass.
Class	getObjectIdType() The metadata-specified class to use for the object ID.
Class[]	getPCSubclasses() Return the known persistence capable subclasses of the described type, or empty array if none or if this is embedded metadata.
ClassMetaData[]	getPCSubclassMetaDatas() Return the metadata for the known persistence capable subclasses of the described type, or empty array if none or if this is embedded metadata.
Class	getPCSuperclass() The persistence capable superclass of the described type.
ClassMetaData	getPCSuperclassMetaData() The metadata for this class' superclass.
FieldMetaData[]	getPrimaryKeyFields() Return primary key fields, or empty array if none.
MetaDataRepository	getRepository() Return the owning repository.
boolean	getRequiresExtent() Whether the type requires extent management.
int	getResolve() The resolve mode for this metadata.
String	getResourceName() Return the domain-meaningful name of the resource that was loaded from this source.
File	getSourceFile() Return the file from which this instance was parsed.
int	getSourceMode() The source mode this metadata has been loaded under.
Object	getSourceScope() Return the domain-dependent scope of this instance within its file.
int	getSourceType() Return the type of source.
protected FieldMetaData	getSuperclassField(FieldMetaData supField) Return the superclass copy of the given field.
String	getTypeAlias() Returns the alias for the described type, or null if none has been set.
FieldMetaData	getVersionField() Return the version field for this class, if any.
boolean	hasAbstractPKField() Convenience method to determine if the pcType modeled by this ClassMetaData object is both abstract and declares PKFields.
int	hashCode()
boolean	hasPKFieldsFromAbstractClass() Convenience method to determine if this type is a direct decendent of an abstract type declaring PKFields.
protected void	initializeMapping() Initialize mapping.
boolean	isAbstract() Returns true if the pcType modeled by this ClassMetaData object is abstract (ie, a MappedSuperclass in JPA terms.)
boolean	isAccessibleField(String field) Return whether the given name represents a managed or static field of this class, including superclass fields.
boolean	isDetachable() Whether instances are detachable.
boolean	isEmbeddedOnly() Whether the type can only be used as an embedded object.
boolean	isIntercepting() Whether the type's fields are actively intercepted, either by redefinition or enhancement.
boolean	isManagedInterface() Whether the type is a managed interface.
boolean	isMapped() Whether this class is mapped to the datastore.
boolean	isObjectIdTypeShared() Whether this type uses an application identity class that is shared with other classes, and is therefore wrapped in an ObjectId.
boolean	isOpenJPAIdentity() Whether this type uses OpenJPA identity.
boolean	removeDeclaredFetchGroup(FetchGroup fg) Remove a declared fetch group.
boolean	removeDeclaredField(FieldMetaData field) Remove the given field from management.
boolean	removeDeclaredInterface(Class iface) Remove the given interface from the declared list.
boolean	removeDefinedSuperclassField(FieldMetaData field) Remove the given field from management.
boolean	resolve(int mode) Resolve and validate metadata.
protected void	resolveMapping(boolean runtime) Resolve mapping data.
protected void	resolveMeta(boolean runtime) Resolve metadata.
void	setAbstract(boolean flag) Sets the value determining if the pcType modeled by this ClassMetaData object is abstract (ie, a MappedSuperclass in JPA terms.)
void	setAccessType(int type) The access type used by this class.
void	setComments(String[] comments) Set comments.
void	setDataCacheName(String name) Set the cache name for this class.
void	setDataCacheTimeout(int timeout) The cache timeout for this class.
protected void	setDescribedType(Class type) Set the class descibed by this metadata.
void	setDetachable(boolean detachable) Whether instances are detachable.
void	setDetachedState(String field) The name of the detach state field, or null if none.
void	setEmbeddedOnly(boolean embed) Whether the type can only be used as an embedded object.
void	setEnvClassLoader(ClassLoader loader) The class environmental loader used when loading this metadata.
void	setIdentitySequenceName(String seqName) The datastore identity sequence name, or null for none.
void	setIdentityStrategy(int strategy) The strategy to use for datastore identity generation.
void	setIdentityType(int type) The type of identity being used.
void	setIntercepting(boolean intercepting) Whether the type's fields are actively intercepted, either by redefinition or enhancement.
void	setInterfaceImpl(Class impl) Set the managed interface implementor class.
void	setInterfacePropertyAlias(Class iface, String orig, String local) Alias properties from the given interface during queries to the local field.
void	setIsCacheable(boolean isCacheable, boolean annotationOverride) Set whether or not the class represented by this ClassMetaData object should be included in the datacache.
void	setListingIndex(int index) The index in which this field was listed in the metadata.
void	setManagedInterface(boolean managedInterface) Whether the type is a managed interface
void	setObjectIdType(Class cls, boolean shared) The metadata-specified class to use for the object ID.
void	setPCSuperclass(Class pc) The persistence capable superclass of the described type.
void	setPCSuperclassMetaData(ClassMetaData meta) The metadata for this class' superclass.
void	setRequiresExtent(boolean req) Whether the type requires extent management.
void	setResolve(int mode) The resolve mode for this metadata.
void	setResolve(int mode, boolean on) The resolve mode for this metadata.
void	setSource(File file, int srcType)
void	setSourceMode(int mode) The source mode this metadata has been loaded under.
void	setSourceMode(int mode, boolean on) The source mode this metadata has been loaded under.
void	setTypeAlias(String alias) Sets the alias for the described type.
String	toString()
Boolean	usesDetachedState() Whether an instance of this type has detached state.
protected void	validateMapping(boolean runtime) Validate mapping data.
protected void	validateMeta(boolean runtime) Validate resolved metadata.

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

addExtension, addExtension, copy, getBooleanExtension, getBooleanExtension, getDoubleExtension, getDoubleExtension, getEmbeddedExtensions, getEmbeddedExtensions, getExtensionKeys, getExtensionKeys, getExtensionVendors, getIntExtension, getIntExtension, getObjectExtension, getObjectExtension, getStringExtension, getStringExtension, hasExtension, hasExtension, isEmpty, removeEmbeddedExtensions, removeEmbeddedExtensions, removeExtension, removeExtension, validateDataStoreExtensionPrefix, validateExtensionKeys

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

ID_UNKNOWN

public static final int ID_UNKNOWN

Unkonwn identity type.

See Also:

Constant Field Values

ID_DATASTORE

public static final int ID_DATASTORE

Datastore identity type.

See Also:

Constant Field Values

ID_APPLICATION

public static final int ID_APPLICATION

Application identity type.

See Also:

Constant Field Values

ACCESS_UNKNOWN

public static final int ACCESS_UNKNOWN

Unknown access type.

See Also:

Constant Field Values

ACCESS_FIELD

public static final int ACCESS_FIELD

Persistent attributes are accessed via direct field access. Bit flag.

See Also:

Constant Field Values

ACCESS_PROPERTY

public static final int ACCESS_PROPERTY

Persistent attributes are accessed via setters and getters. Bit flag.

See Also:

Constant Field Values

SYNTHETIC

public static final String SYNTHETIC

Value for using a synthetic detached state field, which is the default.

See Also:

Constant Field Values

DEFAULT_STRING

protected static final String DEFAULT_STRING

See Also:

Constant Field Values

Constructor Detail

ClassMetaData

protected ClassMetaData(Class type,
                        MetaDataRepository repos)

Constructor. Supply described type and repository.

ClassMetaData

protected ClassMetaData(ValueMetaData owner)

Embedded constructor. Supply embedding value.

Method Detail

getRepository

public MetaDataRepository getRepository()

Return the owning repository.

Specified by:

getRepository in interface MetaDataContext

Specified by:

getRepository in class Extensions

getEmbeddingMetaData

public ValueMetaData getEmbeddingMetaData()

If this metadata is for an embedded object, returning the owning value.

getDescribedType

public Class getDescribedType()

The persistence capable class described by this metadata.

setDescribedType

protected void setDescribedType(Class type)

Set the class descibed by this metadata. The type may be reset when an embedded value changes its declared type.

getEnvClassLoader

public ClassLoader getEnvClassLoader()

The environmental loader used when loading this metadata. The class metadata should use this loader when loading metadata for its superclass and field types.

setEnvClassLoader

public void setEnvClassLoader(ClassLoader loader)

The class environmental loader used when loading this metadata. The class metadata should use this loader when loading metadata for its superclass and field types.

getPCSuperclass

public Class getPCSuperclass()

The persistence capable superclass of the described type.

setPCSuperclass

public void setPCSuperclass(Class pc)

The persistence capable superclass of the described type.

getPCSuperclassMetaData

public ClassMetaData getPCSuperclassMetaData()

The metadata for this class' superclass.

setPCSuperclassMetaData

public void setPCSuperclassMetaData(ClassMetaData meta)

The metadata for this class' superclass.

isMapped

public boolean isMapped()

Whether this class is mapped to the datastore. By default, only returns false if class is embedded-only, but subclasses might override to allow unmapped other types.

getMappedPCSuperclassMetaData

public ClassMetaData getMappedPCSuperclassMetaData()

Return the closest mapped superclass.

getPCSubclasses

public Class[] getPCSubclasses()

Return the known persistence capable subclasses of the described type, or empty array if none or if this is embedded metadata.

getPCSubclassMetaDatas

public ClassMetaData[] getPCSubclassMetaDatas()

Return the metadata for the known persistence capable subclasses of the described type, or empty array if none or if this is embedded metadata.

getMappedPCSubclassMetaDatas

public ClassMetaData[] getMappedPCSubclassMetaDatas()

Return all mapped subclasses.

getIdentityType

public int getIdentityType()

The type of identity being used. This will be one of:

• ID_UNKNOWN: unknown identity type
• ID_DATASTORE: identity managed by the data store and independent of the fields of the instance
• ID_APPLICATION: identity managed by the application and defined by one or more fields of the instance

If unspecified, defaults to ID_DATASTORE if there are no primary key fields, and ID_APPLICATION otherwise.

setIdentityType

public void setIdentityType(int type)

The type of identity being used. This will be one of:

• ID_UNKNOWN: unknown identity type
• ID_DATASTORE: identity managed by the data store and independent of the fields of the instance
• ID_APPLICATION: identity managed by the application and defined by one or more fields of the instance

If unspecified, defaults to ID_DATASTORE if there are no primary key fields, and ID_APPLICATION otherwise.

getObjectIdType

public Class getObjectIdType()

The metadata-specified class to use for the object ID.

setObjectIdType

public void setObjectIdType(Class cls,
                            boolean shared)

The metadata-specified class to use for the object ID.

isObjectIdTypeShared

public boolean isObjectIdTypeShared()

Whether this type uses an application identity class that is shared with other classes, and is therefore wrapped in an ObjectId.

isOpenJPAIdentity

public boolean isOpenJPAIdentity()

Whether this type uses OpenJPA identity.

getIdentityStrategy

public int getIdentityStrategy()

The strategy to use for datastore identity generation. One of the constants from ValueStrategies.

setIdentityStrategy

public void setIdentityStrategy(int strategy)

The strategy to use for datastore identity generation. One of the constants from ValueStrategies.

getIdentitySequenceName

public String getIdentitySequenceName()

The datastore identity sequence name, or null for none.

setIdentitySequenceName

public void setIdentitySequenceName(String seqName)

The datastore identity sequence name, or null for none.

getIdentitySequenceMetaData

public SequenceMetaData getIdentitySequenceMetaData()

Metadata for the datastore identity sequence.

getLifecycleMetaData

public LifecycleMetaData getLifecycleMetaData()

Information about lifecycle callbacks for this class.

getTypeAlias

public String getTypeAlias()

Returns the alias for the described type, or null if none has been set.

See Also:

setTypeAlias(java.lang.String)

setTypeAlias

public void setTypeAlias(String alias)

Sets the alias for the described type. The alias can be any arbitrary string that the implementation can later use to refer to the class. Note that at runtime, only the alias computed when the persistent type was enhanced is used.

Parameters:

alias - the alias name to apply to the described type

getAccessType

public int getAccessType()

The access type used by this class. Either ACCESS_FIELD or ACCESS_PROPERTY.

setAccessType

public void setAccessType(int type)

The access type used by this class. Must be either ACCESS_FIELD or ACCESS_PROPERTY.

getRequiresExtent

public boolean getRequiresExtent()

Whether the type requires extent management.

setRequiresExtent

public void setRequiresExtent(boolean req)

Whether the type requires extent management.

isEmbeddedOnly

public boolean isEmbeddedOnly()

Whether the type can only be used as an embedded object.

setEmbeddedOnly

public void setEmbeddedOnly(boolean embed)

Whether the type can only be used as an embedded object.

isIntercepting

public boolean isIntercepting()

Whether the type's fields are actively intercepted, either by redefinition or enhancement.

setIntercepting

public void setIntercepting(boolean intercepting)

Whether the type's fields are actively intercepted, either by redefinition or enhancement.

isManagedInterface

public boolean isManagedInterface()

Whether the type is a managed interface.

setManagedInterface

public void setManagedInterface(boolean managedInterface)

Whether the type is a managed interface

getInterfaceImpl

public Class getInterfaceImpl()

Return the managed interface implementor if any.

setInterfaceImpl

public void setInterfaceImpl(Class impl)

Set the managed interface implementor class.

getDeclaredInterfaces

public Class[] getDeclaredInterfaces()

Return all explicitly declared interfaces this class implements.

addDeclaredInterface

public void addDeclaredInterface(Class iface)

Explicitly declare the given interface among the ones this class implements.

removeDeclaredInterface

public boolean removeDeclaredInterface(Class iface)

Remove the given interface from the declared list.

setInterfacePropertyAlias

public void setInterfacePropertyAlias(Class iface,
                                      String orig,
                                      String local)

Alias properties from the given interface during queries to the local field.

getInterfacePropertyAlias

public String getInterfacePropertyAlias(Class iface,
                                        String orig)

Get local field alias for the given interface property.

getInterfaceAliasedProperties

public String[] getInterfaceAliasedProperties(Class iface)

Return all aliases property named for the given interface.

getExtraFieldDataLength

public int getExtraFieldDataLength()

Return the number of fields that use impl or intermediate data, in order to create a compacted array for storage of said data.

getExtraFieldDataIndex

public int getExtraFieldDataIndex(int field)

Return the impl / intermediate field data index of the given field in the compacted array, or -1 if the field does not use extra data.

See Also:

getExtraFieldDataLength()

isAccessibleField

public boolean isAccessibleField(String field)

Return whether the given name represents a managed or static field of this class, including superclass fields.

getFields

public FieldMetaData[] getFields()

Return all field metadatas, including superclass fields.

getSuperclassField

protected FieldMetaData getSuperclassField(FieldMetaData supField)

Return the superclass copy of the given field.

getDeclaredFields

public FieldMetaData[] getDeclaredFields()

Return only the fields for this class, without superclass fields.

getPrimaryKeyFields

public FieldMetaData[] getPrimaryKeyFields()

Return primary key fields, or empty array if none. The order in which the keys are returned will be the order in which the fields are declared, starting at the least-derived superclass and ending with the primary key fields of the most-derived subclass.

getDefaultFetchGroupFields

public FieldMetaData[] getDefaultFetchGroupFields()

Return the list of fields in the default fetch group, including superclass fields, or an empty array if none.

getVersionField

public FieldMetaData getVersionField()

Return the version field for this class, if any.

getField

public FieldMetaData getField(int index)

Return the metadata for the persistent or transactional field with the given absolute index.

Returns:

the field's metadata, or null if not found

getDeclaredField

public FieldMetaData getDeclaredField(int index)

Return the metadata for the persistent or transactional field with the given relative index.

Returns:

the field's metadata, or null if not found

getField

public FieldMetaData getField(String name)

Return the metadata for the persistent or transactional field with the given name.

Returns:

the field's metadata, or null if not found

getDeclaredField

public FieldMetaData getDeclaredField(String name)

Return the metadata for the persistent or transactional field with the given name, without including superclass fields.

Returns:

the field's metadata, or null if not found

getDeclaredUnmanagedFields

public FieldMetaData[] getDeclaredUnmanagedFields()

Return any fields that were added as non-managed. All other methods to get fields return only those that are managed.

addDeclaredField

public FieldMetaData addDeclaredField(String name,
                                      Class type)

Add a new field metadata to this class.

removeDeclaredField

public boolean removeDeclaredField(FieldMetaData field)

Remove the given field from management.

Returns:

true if the field was removed, false otherwise

getDefinedSuperclassField

public FieldMetaData getDefinedSuperclassField(String name)

Return the defined superclass field with the given name, or null if none.

addDefinedSuperclassField

public FieldMetaData addDefinedSuperclassField(String name,
                                               Class type,
                                               Class sup)

Add a new defined superclass field metadata to this class.

removeDefinedSuperclassField

public boolean removeDefinedSuperclassField(FieldMetaData field)

Remove the given field from management.

Returns:

true if the field was removed, false otherwise

defineSuperclassFields

public void defineSuperclassFields(boolean force)

Incorporate superclass fields redefined in this subclass into this metadata. This method is generally called after metadata is resolved and mapping information is loaded, but before mapping resolve.

Parameters:

force - whether to force re-mapping of even mapped superclass fields

getDefinedFields

public FieldMetaData[] getDefinedFields()

Returns an array of all the fields defined by this class. This includes mapped declared fields and any concrete mapping of unmapped superclass fields performed by this class.

getFieldsInListingOrder

public FieldMetaData[] getFieldsInListingOrder()

Returns all fields in the order they are listed in the metadata file. Unlisted fields are placed after listed ones.

getDefinedFieldsInListingOrder

public FieldMetaData[] getDefinedFieldsInListingOrder()

Returns all fields defined by this class in the order they are listed in the metadata file. Unlisted fields are placed after listed ones. This array includes declared transactional and unmanaged fields.

getDataCacheName

public String getDataCacheName()

The name of the datacache to use for this class. If this class is not eligible for caching based its annotation or the cache configuration null will be returned.

Returns:

The cache name, or null if this type should not be cached.

setDataCacheName

public void setDataCacheName(String name)

Set the cache name for this class. Set to null to disable caching.

getDataCacheTimeout

public int getDataCacheTimeout()

The cache timeout for this class. -1 indicates no timeout.

setDataCacheTimeout

public void setDataCacheTimeout(int timeout)

The cache timeout for this class. -1 indicates no timeout.

getDataCache

public DataCache getDataCache()

Return the data cache for this class, or null if it is not cachable.

isDetachable

public boolean isDetachable()

Whether instances are detachable.

setDetachable

public void setDetachable(boolean detachable)

Whether instances are detachable.

getDetachedState

public String getDetachedState()

The name of the detach state field, or null if none.

setDetachedState

public void setDetachedState(String field)

The name of the detach state field, or null if none.

getDetachedStateField

public Field getDetachedStateField()

Return the detach state field, or null if none.

usesDetachedState

public Boolean usesDetachedState()

Whether an instance of this type has detached state.

Returns:

true if a detached instance must have detached state, false if it does not, and null if it may use a manually-constructed instance without detached state

clearAllFieldCache

protected void clearAllFieldCache()

Clear cached field data.

clearDefinedFieldCache

protected void clearDefinedFieldCache()

Clear defined field data.

clearFieldCache

protected void clearFieldCache()

Clear cached field data.

clearSubclassCache

protected void clearSubclassCache()

Clear cached subclass data.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

compareTo

public int compareTo(Object other)

Specified by:

compareTo in interface Comparable

toString

public String toString()

Overrides:

toString in class Object

getResolve

public int getResolve()

The resolve mode for this metadata.

setResolve

public void setResolve(int mode)

The resolve mode for this metadata.

setResolve

public void setResolve(int mode,
                       boolean on)

The resolve mode for this metadata.

resolve

public boolean resolve(int mode)

Resolve and validate metadata. Return true if already resolved.

resolveMeta

protected void resolveMeta(boolean runtime)

Resolve metadata.

validateMeta

protected void validateMeta(boolean runtime)

Validate resolved metadata.

resolveMapping

protected void resolveMapping(boolean runtime)

Resolve mapping data. Logs resolve message and resolves super by default.

validateMapping

protected void validateMapping(boolean runtime)

Validate mapping data.

initializeMapping

protected void initializeMapping()

Initialize mapping. Logs init message by default.

getDeclaredFetchGroups

public FetchGroup[] getDeclaredFetchGroups()

Return the fetch groups declared explicitly in this type.

getCustomFetchGroups

public FetchGroup[] getCustomFetchGroups()

Return all fetch groups for this type, including superclass groups.

getFetchGroup

public FetchGroup getFetchGroup(String name)

Gets a named fecth group. If not available in this receiver then looks up the inheritence hierarchy.

Parameters:

name - name of a fetch group.

Returns:

an existing fecth group of the given name if known to this receiver or any of its superclasses. Otherwise null.

addDeclaredFetchGroup

public FetchGroup addDeclaredFetchGroup(String name)

Adds fetch group of the given name, or returns existing instance.

Parameters:

name - a non-null, non-empty name. Must be unique within this receiver's scope. The super class may have a group with the same name.

removeDeclaredFetchGroup

public boolean removeDeclaredFetchGroup(FetchGroup fg)

Remove a declared fetch group.

getSourceFile

public File getSourceFile()

Description copied from interface: SourceTracker

Return the file from which this instance was parsed.

Specified by:

getSourceFile in interface SourceTracker

getSourceScope

public Object getSourceScope()

Description copied from interface: SourceTracker

Return the domain-dependent scope of this instance within its file.

Specified by:

getSourceScope in interface SourceTracker

getSourceType

public int getSourceType()

Description copied from interface: SourceTracker

Return the type of source.

Specified by:

getSourceType in interface SourceTracker

setSource

public void setSource(File file,
                      int srcType)

getResourceName

public String getResourceName()

Description copied from interface: SourceTracker

Return the domain-meaningful name of the resource that was loaded from this source. I.e., if we had loaded the source for a Java class, this would return the name of the class.

Specified by:

getResourceName in interface SourceTracker

getSourceMode

public int getSourceMode()

The source mode this metadata has been loaded under.

setSourceMode

public void setSourceMode(int mode)

The source mode this metadata has been loaded under.

setSourceMode

public void setSourceMode(int mode,
                          boolean on)

The source mode this metadata has been loaded under.

getListingIndex

public int getListingIndex()

The index in which this class was listed in the metadata. Defaults to -1 if this class 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 class was not listed in the metadata.

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

copy

public void copy(ClassMetaData meta)

Copy the metadata from the given instance 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

setIsCacheable

public void setIsCacheable(boolean isCacheable,
                           boolean annotationOverride)

Set whether or not the class represented by this ClassMetaData object should be included in the datacache. The arguments provided are *hints* as to whether the class should be included in the datacache, and can be overridden by the configuration set in openjpa.Datacache.

Rules for this determination are:

1. If the class shows up in the list of excluded types, it does not get cached, period.
2. If the class does not show up in the excluded types, but the included types field is set (ie, has at least one class), then:
   1. If the class is listed in the include list, then it gets cached
   2. If the class is set as cacheable by the @Datacache annotation, it gets cached
   3. If neither a or b are true, then the class does not get cached
3. If neither the include or exclude lists are defined, then go along with the value passed into the argument, which is either the default value (true) or whatever was set with the @Datacache annotation

Parameters:

isCacheable - Hint whether this class should be included in the datacache. Default behavior is yes, though the

annotationOverride - Whether this hint originated from the @Datacache annotation or whether this is the default "yes" hint. The origination of the hint influences the decision making process in rule #2b.

isAbstract

public boolean isAbstract()

Returns true if the pcType modeled by this ClassMetaData object is abstract (ie, a MappedSuperclass in JPA terms.)

Returns:

setAbstract

public void setAbstract(boolean flag)

Sets the value determining if the pcType modeled by this ClassMetaData object is abstract (ie, a MappedSuperclass in JPA terms.)

hasAbstractPKField

public boolean hasAbstractPKField()

Convenience method to determine if the pcType modeled by this ClassMetaData object is both abstract and declares PKFields. This method is used by the PCEnhancer to determine if special handling is required.

Returns:

hasPKFieldsFromAbstractClass

public boolean hasPKFieldsFromAbstractClass()

Convenience method to determine if this type is a direct decendent of an abstract type declaring PKFields. Returns true if there are no pcTypes mapped to a table between this type and an abstract pcType declaring PKFields. Returns false if there no such abstract pcTypes in the inheritance hierarchy or if there are any pcTypes mapped to tables in between the type represented by this ClassMetaData object and the abstract pcType declaring PKFields.

Returns: