y.util
Class GraphCopier.DataProviderCopyFactory

java.lang.Object
  y.util.GraphCopier.GraphDataCopyFactory
      y.util.GraphCopier.DataProviderCopyFactory

All Implemented Interfaces:

GraphCopier.CopyFactory

Direct Known Subclasses:

GraphCopier.EdgeDataProviderCopyFactory, GraphCopier.ItemDataProviderCopyFactory, GraphCopier.NodeDataProviderCopyFactory

Enclosing class:

GraphCopier

public abstract static class GraphCopier.DataProviderCopyFactory
extends GraphCopier.GraphDataCopyFactory

Abstract helper class that provides helper methods to copy DataProvider contents.

Field Summary

protected java.lang.Object

dpKey The DataProvider key.

Constructor Summary

protected

GraphCopier.DataProviderCopyFactory(GraphCopier.CopyFactory delegatingFactory, java.lang.Object dpKey) Creates a new delegating instance that copies the data for the given data provider key.

Method Summary

protected abstract DataMap	createMap(Graph dst) Factory callback to create the backing storage.
protected DataMap	getMap(Graph graph) Helper method that retrieves the map for the given graph instance.
protected void	preCopyData(Graph src, Graph dst) Calls createMap(y.base.Graph) and registers that map on the target graph if there is no DataMap registered on the target graph yet.

Methods inherited from class y.util.GraphCopier.GraphDataCopyFactory

copyData, copyData, copyEdge, copyNode, createGraph, postCopyData, postCopyGraphData, preCopyGraphData

Methods inherited from class java.lang.Object

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

Field Detail

dpKey

protected final java.lang.Object dpKey

The DataProvider key.

Constructor Detail

GraphCopier.DataProviderCopyFactory

protected GraphCopier.DataProviderCopyFactory(GraphCopier.CopyFactory delegatingFactory,
                                              java.lang.Object dpKey)

Creates a new delegating instance that copies the data for the given data provider key.

Parameters:

delegatingFactory - the factory to delegate to.

dpKey - the data provider key

Method Detail

preCopyData

protected void preCopyData(Graph src,
                           Graph dst)

Calls createMap(y.base.Graph) and registers that map on the target graph if there is no DataMap registered on the target graph yet.

Overrides:

preCopyData in class GraphCopier.GraphDataCopyFactory

createMap

protected abstract DataMap createMap(Graph dst)

Factory callback to create the backing storage.

getMap

protected DataMap getMap(Graph graph)

Helper method that retrieves the map for the given graph instance.

Parameters:

graph - Graph instance for which the map is retrieved

Returns:

the map for the given graph instance