i3.dragos.gm.core
Class MultiWrapper

java.lang.Object
  i3.dragos.gm.core.MultiWrapper

All Implemented Interfaces:

Wrapper

public class MultiWrapper
extends java.lang.Object
implements Wrapper

This Wrapper uses multiple other Wrappers to process any supplied argument.

The first wrapper in the array is called to wrap the original entity / class, all following wrappers each receive the output of the predecessor as argument. The output of the last wrapper in the array is then returned by this wrapper.

Author:

Thorsten Hermes <thermes@i3.informatik.rwth-aachen.de>

Constructor Summary

MultiWrapper(Wrapper[] wrappers)
Creates a MultiWrapper.

Method Summary

Wrapper	getLastWrapper() Returns the last wrapper.
Wrapper	getWrapper(int index) Returns the wrapper at the given index.
Attribute	wrapAttribute(Attribute a) Wraps the supplied Attribute.
Edge	wrapEdge(Edge g) Variant of Wrapper.wrapGraphEntity(GraphEntity) to avoid casting.
EdgeClass	wrapEdgeClass(EdgeClass g) Variant of Wrapper.wrapGraphEntityClass(GraphEntityClass) to avoid casting.
Graph	wrapGraph(Graph g) Variant of Wrapper.wrapGraphEntity(GraphEntity) to avoid casting.
GraphClass	wrapGraphClass(GraphClass g) Variant of Wrapper.wrapGraphEntityClass(GraphEntityClass) to avoid casting.
GraphEntity	wrapGraphEntity(GraphEntity g) Wraps the supplied GraphEntity.
GraphEntityClass	wrapGraphEntityClass(GraphEntityClass g) Wraps the supplied GraphEntityClass.
Node	wrapNode(Node g) Variant of Wrapper.wrapGraphEntity(GraphEntity) to avoid casting.
NodeClass	wrapNodeClass(NodeClass g) Variant of Wrapper.wrapGraphEntityClass(GraphEntityClass) to avoid casting.
Relation	wrapRelation(Relation g) Variant of Wrapper.wrapGraphEntity(GraphEntity) to avoid casting.
RelationClass	wrapRelationClass(RelationClass g) Variant of Wrapper.wrapGraphEntityClass(GraphEntityClass) to avoid casting.
RelationEnd	wrapRelationEnd(RelationEnd g) Variant of Wrapper.wrapGraphEntity(GraphEntity) to avoid casting.
RelationEndClass	wrapRelationEndClass(RelationEndClass g) Variant of Wrapper.wrapGraphEntityClass(GraphEntityClass) to avoid casting.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiWrapper

public MultiWrapper(Wrapper[] wrappers)

Creates a MultiWrapper.

Parameters:

wrappers - An array of wrappers (which is copied, not referenced), may have a length of 0, but no null elements.

Method Detail

getLastWrapper

public Wrapper getLastWrapper()

Returns the last wrapper.

Returns:

the last of the wrappers.

getWrapper

public Wrapper getWrapper(int index)

Returns the wrapper at the given index.

Parameters:

index - The index of the wrapper that should be returned.

Returns:

the wrapper at the given index.

wrapGraphEntity

public GraphEntity wrapGraphEntity(GraphEntity g)
                            throws DragosException

Wraps the supplied GraphEntity. The type of the entity must be left unchanged, e.g. an Edge must only be wrapped in another Edge, not in a Node.

Specified by:

wrapGraphEntity in interface Wrapper

Parameters:

g - The GraphEntity to wrap, must not be null

Returns:

A GraphEntity of the same type, wrapping the supplied entity in zero or more layers.

Throws:

DragosException - in case of errors during wrapping.

wrapGraphEntityClass

public GraphEntityClass wrapGraphEntityClass(GraphEntityClass g)
                                      throws DragosException

Wraps the supplied GraphEntityClass. The type of the entity must be left unchanged, e.g. an EdgeClass must only be wrapped in another EdgeClass, not in a NodeClass.

Specified by:

wrapGraphEntityClass in interface Wrapper

Parameters:

g - The GraphEntityClass to wrap, must not be null

Returns:

A GraphEntityClass of the same type, wrapping the supplied class in zero or more layers.

Throws:

DragosException - in case of errors during wrapping.

wrapEdge

public Edge wrapEdge(Edge g)
              throws DragosException

Variant of Wrapper.wrapGraphEntity(GraphEntity) to avoid casting.

Specified by:

wrapEdge in interface Wrapper

Parameters:

g - see Wrapper.wrapGraphEntity(GraphEntity) for details

Returns:

see Wrapper.wrapGraphEntity(GraphEntity) for details

Throws:

DragosException - in case of errors during wrapping.

wrapEdgeClass

public EdgeClass wrapEdgeClass(EdgeClass g)
                        throws DragosException

Variant of Wrapper.wrapGraphEntityClass(GraphEntityClass) to avoid casting.

Specified by:

wrapEdgeClass in interface Wrapper

Parameters:

g - see Wrapper.wrapGraphEntity(GraphEntity) for details

Returns:

see Wrapper.wrapGraphEntityClass(GraphEntityClass) for details

Throws:

DragosException - in case of errors during wrapping.

wrapGraph

public Graph wrapGraph(Graph g)
                throws DragosException

Variant of Wrapper.wrapGraphEntity(GraphEntity) to avoid casting.

Specified by:

wrapGraph in interface Wrapper

Parameters:

g - see Wrapper.wrapGraphEntity(GraphEntity) for details

Returns:

see Wrapper.wrapGraphEntity(GraphEntity) for details

Throws:

DragosException - in case of errors during wrapping.

wrapGraphClass

public GraphClass wrapGraphClass(GraphClass g)
                          throws DragosException

Variant of Wrapper.wrapGraphEntityClass(GraphEntityClass) to avoid casting.

Specified by:

wrapGraphClass in interface Wrapper

Parameters:

g - see Wrapper.wrapGraphEntityClass(GraphEntityClass) for details

Returns:

see Wrapper.wrapGraphEntityClass(GraphEntityClass) for details

Throws:

DragosException - in case of errors during wrapping.

wrapNode

public Node wrapNode(Node g)
              throws DragosException

Variant of Wrapper.wrapGraphEntity(GraphEntity) to avoid casting.

Specified by:

wrapNode in interface Wrapper

Parameters:

g - see Wrapper.wrapGraphEntity(GraphEntity) for details

Returns:

see Wrapper.wrapGraphEntity(GraphEntity) for details

Throws:

DragosException - in case of errors during wrapping.

wrapNodeClass

public NodeClass wrapNodeClass(NodeClass g)
                        throws DragosException

Variant of Wrapper.wrapGraphEntityClass(GraphEntityClass) to avoid casting.

Specified by:

wrapNodeClass in interface Wrapper

Parameters:

g - see Wrapper.wrapGraphEntityClass(GraphEntityClass) for details

Returns:

see Wrapper.wrapGraphEntityClass(GraphEntityClass) for details

Throws:

DragosException - in case of errors during wrapping.

wrapRelation

public Relation wrapRelation(Relation g)
                      throws DragosException

Variant of Wrapper.wrapGraphEntity(GraphEntity) to avoid casting.

Specified by:

wrapRelation in interface Wrapper

Parameters:

g - see Wrapper.wrapGraphEntity(GraphEntity) for details

Returns:

see Wrapper.wrapGraphEntity(GraphEntity) for details

Throws:

DragosException - in case of errors during wrapping.

wrapRelationClass

public RelationClass wrapRelationClass(RelationClass g)
                                throws DragosException

Variant of Wrapper.wrapGraphEntityClass(GraphEntityClass) to avoid casting.

Specified by:

wrapRelationClass in interface Wrapper

Parameters:

g - see Wrapper.wrapGraphEntityClass(GraphEntityClass) for details

Returns:

see Wrapper.wrapGraphEntityClass(GraphEntityClass) for details

Throws:

DragosException - in case of errors during wrapping.

wrapRelationEnd

public RelationEnd wrapRelationEnd(RelationEnd g)
                            throws DragosException

Variant of Wrapper.wrapGraphEntity(GraphEntity) to avoid casting.

Specified by:

wrapRelationEnd in interface Wrapper

Parameters:

g - see Wrapper.wrapGraphEntity(GraphEntity) for details

Returns:

see Wrapper.wrapGraphEntity(GraphEntity) for details

Throws:

DragosException - in case of errors during wrapping.

wrapRelationEndClass

public RelationEndClass wrapRelationEndClass(RelationEndClass g)
                                      throws DragosException

Variant of Wrapper.wrapGraphEntityClass(GraphEntityClass) to avoid casting.

Specified by:

wrapRelationEndClass in interface Wrapper

Parameters:

g - see Wrapper.wrapGraphEntityClass(GraphEntityClass) for details

Returns:

see Wrapper.wrapGraphEntityClass(GraphEntityClass) for details

Throws:

DragosException - in case of errors during wrapping.

wrapAttribute

public Attribute wrapAttribute(Attribute a)
                        throws DragosException

Wraps the supplied Attribute.

Specified by:

wrapAttribute in interface Wrapper

Parameters:

a - The Attribute to wrap, must not be null

Returns:

An Attribute, wrapping the original Attribute in zero or more layers.

Throws:

DragosException - in case of errors during wrapping.