com.yworks.yfiles.algorithms

Class DataProviderAdapter

java.lang.Object

com.yworks.yfiles.algorithms.DataProviderAdapter

All Implemented Interfaces:

IDataProvider

public abstract class DataProviderAdapter
extends Object
implements IDataProvider

An abstract adapter class for providing data.

The data provision methods in this class throw a UnsupportedOperationException and defined(Object) always returns false.

This class exists as a convenience for creating data provider objects.

Extend this class to provide either typed or untyped data for a certain lookup domain.

Constructor Summary

Constructors

Constructor and Description
DataProviderAdapter()

Method Summary

Modifier and Type	Method and Description
boolean	defined(Object dataHolder) Returns false for all data holders.
Object	get(Object dataHolder) Subclasses may override this method to provide access to object values.
boolean	getBool(Object dataHolder) Subclasses may override this method to provide access to boolean values.
double	getDouble(Object dataHolder) Subclasses may override this method to provide access to double values.
int	getInt(Object dataHolder) Subclasses may override this method to provide access to integer values.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataProviderAdapter

public DataProviderAdapter()

Method Detail

defined

public boolean defined(Object dataHolder)

Returns false for all data holders.

Subclasses should override this method to make clear for which data holders there is a value accessible via this data provider.

Returns:

false.

get

public Object get(Object dataHolder)

Subclasses may override this method to provide access to object values.

Specified by:

get in interface IDataProvider

Throws:

UnsupportedOperationException - unless overwritten.

getBool

public boolean getBool(Object dataHolder)

Subclasses may override this method to provide access to boolean values.

Specified by:

getBool in interface IDataProvider

Throws:

UnsupportedOperationException - unless overwritten.

getDouble

public double getDouble(Object dataHolder)

Subclasses may override this method to provide access to double values.

Specified by:

getDouble in interface IDataProvider

Throws:

UnsupportedOperationException - unless overwritten.

getInt

public int getInt(Object dataHolder)

Subclasses may override this method to provide access to integer values.

Specified by:

getInt in interface IDataProvider

Throws:

UnsupportedOperationException - unless overwritten.