de.grogra.imp
Class GraphDescriptor

java.lang.Object
  de.grogra.imp.GraphDescriptor

All Implemented Interfaces:

Manageable

Direct Known Subclasses:

FilterDescriptor, MetaGraphDescriptor, ProjectGraphDescriptor

public abstract class GraphDescriptor
extends java.lang.Object
implements Manageable

A GraphDescriptor represents the persistent information which is needed to obtain a specific Graph in the context of a View.

Author:

Ole Kniemeyer

Nested Class Summary

static class

GraphDescriptor.Type

Field Summary

static GraphDescriptor.Type

$TYPE

Constructor Summary

GraphDescriptor()

Method Summary

void	fieldModified(PersistenceField field, int[] indices, Transaction t)
abstract Graph	getGraph(View view) Returns the graph described by this descriptor, given the context view.
Path	getPathFor(View view, GraphState gs, java.lang.Object obj, boolean node)
int	getStamp() Returns a stamp for this object.
Manageable	manageableReadResolve()
java.lang.Object	manageableWriteReplace()
void	substituteSelection(GraphState[] gs, java.lang.Object[] object, boolean[] asNode, int index)

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.grogra.persistence.Manageable

getManageableType

Field Detail

$TYPE

public static final GraphDescriptor.Type $TYPE

Constructor Detail

GraphDescriptor

public GraphDescriptor()

Method Detail

fieldModified

public void fieldModified(PersistenceField field,
                          int[] indices,
                          Transaction t)

Specified by:

fieldModified in interface Manageable

getGraph

public abstract Graph getGraph(View view)

Returns the graph described by this descriptor, given the context view.

Parameters:

view - the context for the graph

Returns:

graph corresponding to this descriptor

getPathFor

public Path getPathFor(View view,
                       GraphState gs,
                       java.lang.Object obj,
                       boolean node)

getStamp

public int getStamp()

Description copied from interface: Manageable

Returns a stamp for this object. Each modification to this object increments the stamp. The initial stamp is non-negative.

Specified by:

getStamp in interface Manageable

Returns:

a stamp

manageableReadResolve

public Manageable manageableReadResolve()

Specified by:

manageableReadResolve in interface Manageable

manageableWriteReplace

public java.lang.Object manageableWriteReplace()

Specified by:

manageableWriteReplace in interface Manageable

substituteSelection

public void substituteSelection(GraphState[] gs,
                                java.lang.Object[] object,
                                boolean[] asNode,
                                int index)