org.apache.tuscany.sca.databinding.impl
Class PipedTransformer<S,I,R>

java.lang.Object
  org.apache.tuscany.sca.databinding.impl.PipedTransformer<S,I,R>

Type Parameters:

S - Source type

I - Intermediate type

R - Result type

All Implemented Interfaces:

PullTransformer<S,R>, Transformer

public class PipedTransformer<S,I,R>
extends java.lang.Object
implements PullTransformer<S,R>

A utility class to connect PushTransformer and DataPipe to create a PullTransformer

Constructor Summary

PipedTransformer(PushTransformer<S,I> pumper, DataPipeTransformer<I,R> pipe)

Method Summary

java.lang.String	getSourceDataBinding() Get the source type that this transformer transforms data from.
java.lang.String	getTargetDataBinding() Get the target type that this transformer transforms data into.
int	getWeight() Get the cost of the transformation.
R	transform(S source, TransformationContext context) Transform source data into the result type.

Methods inherited from class java.lang.Object

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

Constructor Detail

PipedTransformer

public PipedTransformer(PushTransformer<S,I> pumper,
                        DataPipeTransformer<I,R> pipe)

Parameters:

pumper -

pipe -

Method Detail

transform

public R transform(S source,
                   TransformationContext context)

Description copied from interface: PullTransformer

Transform source data into the result type.

Specified by:

transform in interface PullTransformer<S,R>

Parameters:

source - The source data

context - The context for the transformation

Returns:

The transformed result

getSourceDataBinding

public java.lang.String getSourceDataBinding()

Description copied from interface: Transformer

Get the source type that this transformer transforms data from. The type is used as the key when the transformer is registered with TransformerRegistry.

Specified by:

getSourceDataBinding in interface Transformer

Returns:

A key identifying the source type

getTargetDataBinding

public java.lang.String getTargetDataBinding()

Description copied from interface: Transformer

Get the target type that this transformer transforms data into. The type is used as the key when the transformer is registered with TransformerRegistry.

Specified by:

getTargetDataBinding in interface Transformer

Returns:

A key identifying the target type

getWeight

public int getWeight()

Description copied from interface: Transformer

Get the cost of the transformation. The weight can be used to choose the most efficient path if there are more than one available from the source to the target.

Specified by:

getWeight in interface Transformer

Returns:

An integer representing the cost of the transformation