y.io.graphml.output
Class AbstractDataProviderOutputHandler

java.lang.Object
  y.io.graphml.output.AbstractOutputHandler
      y.io.graphml.output.AbstractDataProviderOutputHandler

All Implemented Interfaces:

EventListener, OutputHandler, OutputHandlerProvider

Direct Known Subclasses:

ComplexDataProviderOutputHandler, GraphMLHandler.BooleanDataProviderOutputHandler, GraphMLHandler.DoubleDataProviderOutputHandler, GraphMLHandler.FloatDataProviderOutputHandler, GraphMLHandler.IntDataProviderOutputHandler, GraphMLHandler.LongDataProviderOutputHandler, GraphMLHandler.StringDataProviderOutputHandler

public abstract class AbstractDataProviderOutputHandler
extends AbstractOutputHandler

An abstract implementation of the AbstractOutputHandler class that uses an DataProvider to retrieve the values to output for each item.

Constructor Summary

protected	AbstractDataProviderOutputHandler()
protected	AbstractDataProviderOutputHandler(String name, KeyScope scope, KeyType type) Initializes a new instance of the AbstractDataProviderOutputHandler class

Method Summary

DataProvider	getDataProvider() Gets the DataProvider to use for querying the data for each item.
protected Object	getValue(GraphMLWriteContext context, Object key) Core parse method that obtains the data for the given key.
void	setDataProvider(DataProvider value) Sets the DataProvider to use for querying the data for each item.

Methods inherited from class y.io.graphml.output.AbstractOutputHandler

addNameToKeyDefinition, addScopeToKeyDefinition, addTypeToKeyDefinition, addUriToKeyDefinition, getDataTagAttributes, getDefaultValue, getKeyDefinitionAttributes, getPrecedence, getScope, getValidScopes, hasDefaultValueAssigned, isDefaultValue, isValidScope, isWriteKeyDefault, onQueryOutputHandler, setDefaultValue, setDefaultValueAssigned, setPrecedence, setScope, setValidScopes, setWriteKeyDefault, writeKeyDefinitionContent, writeValue, writeValueCore

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractDataProviderOutputHandler

protected AbstractDataProviderOutputHandler()

AbstractDataProviderOutputHandler

protected AbstractDataProviderOutputHandler(String name,
                                            KeyScope scope,
                                            KeyType type)

Initializes a new instance of the AbstractDataProviderOutputHandler class

Parameters:

name - The name for the key definition attributes.

scope - The scope for the key definition attributes.

type - The type for the key definition attributes.

Method Detail

setDataProvider

public void setDataProvider(DataProvider value)

Sets the DataProvider to use for querying the data for each item.

Parameters:

value - The DataProvider

See Also:

getDataProvider()

getDataProvider

public DataProvider getDataProvider()

Gets the DataProvider to use for querying the data for each item.

Returns:

The DataProvider

See Also:

setDataProvider(y.base.DataProvider)

getValue

protected Object getValue(GraphMLWriteContext context,
                          Object key)

Core parse method that obtains the data for the given key.

This implementation calls DataProvider.get(Object) to retrieve the value from the getDataProvider().

Specified by:

getValue in class AbstractOutputHandler

Parameters:

context - The context.

key - The key.

Returns:

The data that is associated with the key