Package com.sun.jdo.api.persistence.model.jdo

Class FieldGroupElement

java.lang.Object

com.sun.jdo.api.persistence.model.jdo.PersistenceElement

com.sun.jdo.api.persistence.model.jdo.PersistenceMemberElement

com.sun.jdo.api.persistence.model.jdo.FieldGroupElement

All Implemented Interfaces:

FieldElementHolder, PersistenceElementProperties, Comparable

Direct Known Subclasses:

ConcurrencyGroupElement

public abstract class FieldGroupElement
extends PersistenceMemberElement
implements FieldElementHolder

Version:

%I%

Author:

raccah

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	FieldGroupElement.Impl	Pluggable implementation of the storage of field element properties.

Field Summary

Fields inherited from interface com.sun.jdo.api.persistence.model.jdo.PersistenceElementProperties

PROP_CARDINALITY, PROP_COLLECTION_CLASS, PROP_DELETE_ACTION, PROP_ELEMENT_CLASS, PROP_FIELDS, PROP_GROUPS, PROP_IDENTITY, PROP_INVERSE_FIELD, PROP_KEY_CLASS, PROP_KEY_FIELD, PROP_MODIFIED, PROP_NAME, PROP_PERSISTENCE, PROP_PREFETCH, PROP_SENSITIVITY, PROP_UPDATE_ACTION

Constructor Summary

Constructors

Constructor	Description
FieldGroupElement()	Create new FieldGroupElement with no implementation.
FieldGroupElement(FieldGroupElement.Impl impl, PersistenceClassElement declaringClass)	Create new FieldGroupElement with the provided implementation.

Method Summary

Modifier and Type	Method	Description
void	addField(PersistenceFieldElement field)	Add the supplied field to the collection of fields maintained by this holder.
void	addFields(PersistenceFieldElement[] fields)	Add the supplied fields to the collection of fields maintained by this holder.
boolean	containsField(PersistenceFieldElement field)	Tests whether the supplied field is in the collection of fields maintained by this holder.
PersistenceFieldElement	getField(String name)	Returns the field with the supplied name from the collection of fields maintained by this holder.
PersistenceFieldElement[]	getFields()	Returns the collection of fields maintained by this holder in the form of an array.
void	removeField(PersistenceFieldElement field)	Remove the supplied field from the collection of fields maintained by this holder.
void	removeFields(PersistenceFieldElement[] fields)	Removed the supplied fields from the collection of fields maintained by this holder.
void	setFields(PersistenceFieldElement[] fields)	Sets the collection of fields maintained by this holder to the contents of the supplied array.

Methods inherited from class com.sun.jdo.api.persistence.model.jdo.PersistenceMemberElement

equals, getDeclaringClass, hashCode, setDeclaringClass

Methods inherited from class com.sun.jdo.api.persistence.model.jdo.PersistenceElement

addPropertyChangeListener, addVetoableChangeListener, compareTo, getImpl, getMessages, getName, removePropertyChangeListener, removeVetoableChangeListener, setImpl, setName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldGroupElement

public FieldGroupElement()

Create new FieldGroupElement with no implementation. This constructor should only be used for cloning and archiving.

FieldGroupElement

public FieldGroupElement(FieldGroupElement.Impl impl,
                         PersistenceClassElement declaringClass)

Create new FieldGroupElement with the provided implementation. The implementation is responsible for storing all properties of the object.

Parameters:

impl - the implementation to use

declaringClass - the class to attach to

Method Detail

addField

public void addField(PersistenceFieldElement field)
              throws ModelException

Add the supplied field to the collection of fields maintained by this holder.

Specified by:

addField in interface FieldElementHolder

Parameters:

field - the field to be added

Throws:

ModelException - if impossible

addFields

public void addFields(PersistenceFieldElement[] fields)
               throws ModelException

Add the supplied fields to the collection of fields maintained by this holder.

Specified by:

addFields in interface FieldElementHolder

Parameters:

fields - the array of fields to be added

Throws:

ModelException - if impossible

removeField

public void removeField(PersistenceFieldElement field)
                 throws ModelException

Remove the supplied field from the collection of fields maintained by this holder.

Specified by:

removeField in interface FieldElementHolder

Parameters:

field - the field to be removed

Throws:

ModelException - if impossible

removeFields

public void removeFields(PersistenceFieldElement[] fields)
                  throws ModelException

Removed the supplied fields from the collection of fields maintained by this holder.

Specified by:

removeFields in interface FieldElementHolder

Parameters:

fields - the array of fields to be removed

Throws:

ModelException - if impossible

getFields

public PersistenceFieldElement[] getFields()

Returns the collection of fields maintained by this holder in the form of an array.

Specified by:

getFields in interface FieldElementHolder

Returns:

the fields maintained by this holder

setFields

public void setFields(PersistenceFieldElement[] fields)
               throws ModelException

Sets the collection of fields maintained by this holder to the contents of the supplied array.

Specified by:

setFields in interface FieldElementHolder

Parameters:

fields - the fields maintained by this holder

Throws:

ModelException - if impossible

getField

public PersistenceFieldElement getField(String name)

Returns the field with the supplied name from the collection of fields maintained by this holder.

Specified by:

getField in interface FieldElementHolder

Parameters:

name - the name of the field to be found

Returns:

the field with the supplied name, null if none exists

containsField

public boolean containsField(PersistenceFieldElement field)

Tests whether the supplied field is in the collection of fields maintained by this holder.

Specified by:

containsField in interface FieldElementHolder

Parameters:

field - the field to be tested