org.datanucleus.metadata

Class DiscriminatorMetaData

java.lang.Object

org.datanucleus.metadata.MetaData

org.datanucleus.metadata.DiscriminatorMetaData

All Implemented Interfaces:

Serializable

public class DiscriminatorMetaData
extends MetaData

Representation of a discriminator in an inheritance strategy.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected ColumnMetaData	columnMetaData Discriminator column
protected String	columnName Column name of discriminator
protected IndexedValue	indexed Whether the discriminator is indexed or not and whether it is unique
protected IndexMetaData	indexMetaData Definition of any indexing of the discriminator column.
protected DiscriminatorStrategy	strategy strategy tag value.
protected String	value Value for discriminator column

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
DiscriminatorMetaData() Default constructor.
DiscriminatorMetaData(DiscriminatorMetaData dmd) Constructor to copy from the supplied discriminator metadata.

Method Summary

Modifier and Type	Method and Description
ColumnMetaData	getColumnMetaData() Accessor for column MetaData.
String	getColumnName()
IndexedValue	getIndexed()
IndexMetaData	getIndexMetaData() Accessor for indexMetaData
DiscriminatorStrategy	getStrategy()
String	getValue()
void	initialise(ClassLoaderResolver clr, MetaDataManager mmgr) Initialisation method.
ColumnMetaData	newColumnMetaData() Method to create a new ColumnMetaData, add it, and return it.
IndexMetaData	newIndexMetaData() Method to create a new Index metadata, add it, and return it.
void	setColumnMetaData(ColumnMetaData columnMetaData) Mutator for column MetaData.
DiscriminatorMetaData	setColumnName(String columnName)
DiscriminatorMetaData	setIndexed(IndexedValue indexed)
DiscriminatorMetaData	setIndexed(String indexed)
void	setIndexMetaData(IndexMetaData indexMetaData) Mutator for the index MetaData
DiscriminatorMetaData	setStrategy(DiscriminatorStrategy strategy)
DiscriminatorMetaData	setStrategy(String strategy)
DiscriminatorMetaData	setValue(String value)
String	toString(String prefix, String indent) Returns a string representation of the object using a prefix

Methods inherited from class org.datanucleus.metadata.MetaData

addExtension, addExtension, assertIfInitialised, getExtensions, getNoOfExtensions, getParent, getValueForExtension, getValuesForExtension, hasExtension, 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

strategy

protected DiscriminatorStrategy strategy

strategy tag value.

columnName

protected String columnName

Column name of discriminator

value

protected String value

Value for discriminator column

indexed

protected IndexedValue indexed

Whether the discriminator is indexed or not and whether it is unique

columnMetaData

protected ColumnMetaData columnMetaData

Discriminator column

indexMetaData

protected IndexMetaData indexMetaData

Definition of any indexing of the discriminator column.

Constructor Detail

DiscriminatorMetaData

public DiscriminatorMetaData(DiscriminatorMetaData dmd)

Constructor to copy from the supplied discriminator metadata.

Parameters:

dmd - DiscriminatorMetaData

DiscriminatorMetaData

public DiscriminatorMetaData()

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

Method Detail

initialise

public void initialise(ClassLoaderResolver clr,
                       MetaDataManager mmgr)

Initialisation method. This should be called AFTER using the populate method if you are going to use populate. It creates the internal convenience arrays etc needed for normal operation.

Overrides:

initialise in class MetaData

getColumnMetaData

public ColumnMetaData getColumnMetaData()

Accessor for column MetaData.

Returns:

Returns the column MetaData.

setColumnMetaData

public void setColumnMetaData(ColumnMetaData columnMetaData)

Mutator for column MetaData.

Parameters:

columnMetaData - The column MetaData to set.

newColumnMetaData

public ColumnMetaData newColumnMetaData()

Method to create a new ColumnMetaData, add it, and return it.

Returns:

The Column metadata

getIndexMetaData

public final IndexMetaData getIndexMetaData()

Accessor for indexMetaData

Returns:

Returns the indexMetaData.

setIndexMetaData

public final void setIndexMetaData(IndexMetaData indexMetaData)

Mutator for the index MetaData

Parameters:

indexMetaData - The indexMetaData to set.

newIndexMetaData

public IndexMetaData newIndexMetaData()

Method to create a new Index metadata, add it, and return it.

Returns:

The Index metadata

getValue

public String getValue()

setValue

public DiscriminatorMetaData setValue(String value)

getColumnName

public String getColumnName()

setColumnName

public DiscriminatorMetaData setColumnName(String columnName)

getStrategy

public final DiscriminatorStrategy getStrategy()

setStrategy

public DiscriminatorMetaData setStrategy(DiscriminatorStrategy strategy)

setStrategy

public DiscriminatorMetaData setStrategy(String strategy)

getIndexed

public IndexedValue getIndexed()

setIndexed

public DiscriminatorMetaData setIndexed(IndexedValue indexed)

setIndexed

public DiscriminatorMetaData setIndexed(String indexed)

toString

public String toString(String prefix,
                       String indent)

Returns a string representation of the object using a prefix

Overrides:

toString in class MetaData

Parameters:

prefix - prefix string

indent - indent string

Returns:

a string representation of the object.