org.datanucleus.metadata

Class CollectionMetaData

java.lang.Object

org.datanucleus.metadata.MetaData

org.datanucleus.metadata.ContainerMetaData

org.datanucleus.metadata.CollectionMetaData

All Implemented Interfaces:

Serializable

public class CollectionMetaData
extends ContainerMetaData

Representation of the MetaData of a collection.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected org.datanucleus.metadata.ContainerComponent	element Representation of the element of the collection.

Fields inherited from class org.datanucleus.metadata.MetaData

extensions, LOCALISER, METADATA_CREATED_STATE, METADATA_INITIALISED_STATE, METADATA_POPULATED_STATE, METADATA_USED_STATE, metaDataState, parent, VENDOR_NAME, VENDOR_NAME_OLD

Constructor Summary

Constructors

Constructor and Description
CollectionMetaData() Default constructor.
CollectionMetaData(CollectionMetaData collmd) Constructor to create a copy of the passed metadata.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	elementIsPersistent()
AbstractClassMetaData	getElementClassMetaData(ClassLoaderResolver clr, MetaDataManager mmgr) Convenience accessor for the Element ClassMetaData.
String	getElementType() Accessor for the element-type tag value.
boolean	isDependentElement() Accessor for The dependent-element attribute indicates that the collection's element contains a reference that is to be deleted if the referring instance is deleted.
boolean	isEmbeddedElement() Accessor for the embedded-element tag value
boolean	isSerializedElement() Accessor for the serialized-element tag value
void	populate(ClassLoaderResolver clr, ClassLoader primary, MetaDataManager mmgr) Method to populate any defaults, and check the validity of the MetaData.
CollectionMetaData	setDependentElement(boolean dependent)
CollectionMetaData	setElementType(String type)
CollectionMetaData	setEmbeddedElement(boolean embedded)
CollectionMetaData	setSerializedElement(boolean serialized)
String	toString(String prefix, String indent) Returns a string representation of the object.

Methods inherited from class org.datanucleus.metadata.ContainerMetaData

allowNulls, getFieldName, getMemberMetaData

Methods inherited from class org.datanucleus.metadata.MetaData

addExtension, addExtension, assertIfInitialised, getExtensions, getNoOfExtensions, getParent, getValueForExtension, getValuesForExtension, hasExtension, initialise, isInitialised, isPopulated, isUsed, newExtensionMetaData, removeExtension, setParent, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

element

protected org.datanucleus.metadata.ContainerComponent element

Representation of the element of the collection.

Constructor Detail

CollectionMetaData

public CollectionMetaData(CollectionMetaData collmd)

Constructor to create a copy of the passed metadata.

Parameters:

collmd - The metadata to copy

CollectionMetaData

public CollectionMetaData()

Default constructor. Set the fields using setters, before populate().

Method Detail

populate

public void populate(ClassLoaderResolver clr,
            ClassLoader primary,
            MetaDataManager mmgr)

Method to populate any defaults, and check the validity of the MetaData.

Overrides:

populate in class ContainerMetaData

Parameters:

clr - ClassLoaderResolver to use for any loading operations

primary - the primary ClassLoader to use (or null)

mmgr - MetaData manager

getElementType

public String getElementType()

Accessor for the element-type tag value. This can contain comma-separated values.

Returns:

element-type tag value

elementIsPersistent

public boolean elementIsPersistent()

getElementClassMetaData

public AbstractClassMetaData getElementClassMetaData(ClassLoaderResolver clr,
                                            MetaDataManager mmgr)

Convenience accessor for the Element ClassMetaData.

Parameters:

clr - ClassLoader resolver (in case we need to initialise it)

mmgr - MetaData manager

Returns:

element ClassMetaData

isEmbeddedElement

public boolean isEmbeddedElement()

Accessor for the embedded-element tag value

Returns:

embedded-element tag value

isDependentElement

public boolean isDependentElement()

Accessor for The dependent-element attribute indicates that the collection's element contains a reference that is to be deleted if the referring instance is deleted.

Returns:

dependent-element tag value

isSerializedElement

public boolean isSerializedElement()

Accessor for the serialized-element tag value

Returns:

serialized-element tag value

setElementType

public CollectionMetaData setElementType(String type)

setEmbeddedElement

public CollectionMetaData setEmbeddedElement(boolean embedded)

setSerializedElement

public CollectionMetaData setSerializedElement(boolean serialized)

setDependentElement

public CollectionMetaData setDependentElement(boolean dependent)

toString

public String toString(String prefix,
              String indent)

Returns a string representation of the object.

Overrides:

toString in class MetaData

Parameters:

prefix - prefix string

indent - indent string

Returns:

a string representation of the object.