i3.dragos.gm.core.proxy
Class RelationEndProxy

java.lang.Object
  i3.dragos.gm.core.proxy.GraphEntityProxy
      i3.dragos.gm.core.proxy.RelationEndProxy

All Implemented Interfaces:

GraphEntity, RelationEnd, ExistenceCheckable, MetaAttributable

public class RelationEndProxy
extends GraphEntityProxy
implements RelationEnd

A RelationEndProxy delegates all method calls to the underlying relation end except for those that access fields which are used after a relation end has been deleted.

Author:

Boris Boehlen <boehlen@cs.rwth-aachen.de>

Field Summary

Fields inherited from class i3.dragos.gm.core.proxy.GraphEntityProxy

proxiedEntity

Constructor Summary

RelationEndProxy(RelationEnd r)
Constructs a new wrapper for a relation end.

Method Summary

Relation	getRelation() Returns the relation the relation end belongs to.
RelationEndClass	getRelationEndClass() Returns the relation end's type.
GraphEntity	relatesTo() Returns the graph element the relation end is connected to.
void	relateTo(GraphEntity g) Sets the graph element the relation end is connected to.

Methods inherited from class i3.dragos.gm.core.proxy.GraphEntityProxy

checkExistence, checkExistenceOptional, equals, getAdjacentGraphEntities, getAdjacentRelations, getAdjacentRelations, getAllMetaAttributes, getAllValidAttributeValues, getAttributeValue, getDataSourceURL, getEdges, getEdges, getGraphEntityClass, getInternalIdentifier, getMetaAttribute, getParent, getProxyGraphEntity, getRelationEnds, getRelationEnds, getRelationEnds, getWrappedGraphEntity, hashCode, isAttributeValid, isIncident, isIncident, isMetaAttributeKeyReserved, isMetaAttributeSet, putAttributeValue, setAttributeInvalid, setMetaAttribute, toString, unsetMetaAttribute

Methods inherited from class java.lang.Object

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

Methods inherited from interface i3.dragos.gm.core.GraphEntity

equals, getAdjacentGraphEntities, getAdjacentRelations, getAdjacentRelations, getAllValidAttributeValues, getAttributeValue, getDataSourceURL, getEdges, getEdges, getGraphEntityClass, getInternalIdentifier, getParent, getRelationEnds, getRelationEnds, getRelationEnds, getWrappedGraphEntity, hashCode, isAttributeValid, isIncident, isIncident, putAttributeValue, setAttributeInvalid

Methods inherited from interface i3.dragos.gm.core.schema.MetaAttributable

getAllMetaAttributes, getMetaAttribute, isMetaAttributeKeyReserved, isMetaAttributeSet, setMetaAttribute, unsetMetaAttribute

Methods inherited from interface i3.dragos.gm.core.schema.ExistenceCheckable

checkExistence, checkExistenceOptional

Constructor Detail

RelationEndProxy

public RelationEndProxy(RelationEnd r)

Constructs a new wrapper for a relation end.

Parameters:

r - The relation end to wrap.

Method Detail

getRelationEndClass

public RelationEndClass getRelationEndClass()
                                     throws DragosException

Returns the relation end's type.

Specified by:

getRelationEndClass in interface RelationEnd

Returns:

the relation end's type.

Throws:

DragosException - if something went wrong.

getRelation

public Relation getRelation()
                     throws DragosException

Returns the relation the relation end belongs to.

Specified by:

getRelation in interface RelationEnd

Returns:

The relation

Throws:

DragosException - if something went wrong.

relatesTo

public GraphEntity relatesTo()
                      throws DragosException

Returns the graph element the relation end is connected to.

Specified by:

relatesTo in interface RelationEnd

Returns:

The referenced graph element (may be null)

Throws:

DragosException - if something went wrong.

relateTo

public void relateTo(GraphEntity g)
              throws EntityNotFoundException,
                     DragosException

Sets the graph element the relation end is connected to.

Specified by:

relateTo in interface RelationEnd

Parameters:

g - The graphelement to connect to (may be null).

Throws:

EntityNotFoundException - if the target was not null and could not be found.

DragosException - if something went wrong.