net.sf.morph.transform.converters
Class DefaultToBooleanConverter

java.lang.Object
  net.sf.morph.transform.transformers.BaseTransformer
      net.sf.morph.transform.transformers.BaseCompositeTransformer
          net.sf.morph.transform.transformers.SimpleDelegatingTransformer
              net.sf.morph.transform.converters.DefaultToBooleanConverter

All Implemented Interfaces:

java.lang.Cloneable, net.sf.composite.Component, net.sf.composite.Composite, net.sf.composite.SimpleComposite, net.sf.composite.SpecializableComposite, net.sf.composite.StrictlyTypedComposite, Converter, Copier, DecoratedConverter, DecoratedCopier, DecoratedTransformer, ExplicitTransformer, ImpreciseTransformer, Transformer

public class DefaultToBooleanConverter
extends SimpleDelegatingTransformer

Converts any object to a Boolean by delegating to TextToBooleanConverter, NumberToBooleanConverter and ObjectToBooleanConverter.

Since:

Dec 29, 2004

Author:

Matt Sgarlata

See Also:

SimpleDelegatingTransformer, DefaultToBooleanConverter#COMPONENTS, TextToBooleanConverter, NumberToBooleanConverter, ObjectToBooleanConverter

Field Summary

Fields inherited from class net.sf.morph.transform.transformers.BaseCompositeTransformer

components

Fields inherited from class net.sf.morph.transform.transformers.BaseTransformer

destinationClasses, log, sourceClasses

Fields inherited from interface net.sf.morph.transform.Transformer

TRANSFORMATION_TYPE_CONVERT, TRANSFORMATION_TYPE_COPY

Fields inherited from interface net.sf.morph.transform.Transformer

TRANSFORMATION_TYPE_CONVERT, TRANSFORMATION_TYPE_COPY

Fields inherited from interface net.sf.morph.transform.Transformer

TRANSFORMATION_TYPE_CONVERT, TRANSFORMATION_TYPE_COPY

Fields inherited from interface net.sf.morph.transform.Transformer

TRANSFORMATION_TYPE_CONVERT, TRANSFORMATION_TYPE_COPY

Fields inherited from interface net.sf.morph.transform.Transformer

TRANSFORMATION_TYPE_CONVERT, TRANSFORMATION_TYPE_COPY

Constructor Summary

DefaultToBooleanConverter()

Method Summary

protected Transformer[]	createDefaultComponents() Create the default set of Transformer components.
protected java.lang.Class[]	getDestinationClassesImpl() Transformer.getDestinationClasses() implementation template method.
protected boolean	isTransformableImpl(java.lang.Class destinationType, java.lang.Class sourceType) Determines if one of the delegate transformers is capable of performing the given transformation.

Methods inherited from class net.sf.morph.transform.transformers.SimpleDelegatingTransformer

clearVisitedSourceToDestinationMapIfNecessary, clone, convertImpl, copyImpl, createReusableSource, decrementStackDepth, getCachedResult, getComponents, getCopier, getSourceClassesImpl, getSpecializer, getTransformer, getTransformer, getTransformers, getVisitedSourceToDestinationMap, hasVisited, hasVisitedDestination, incrementStackDepth, initializeImpl, isAutomaticallyHandlingNulls, isImpreciseTransformationImpl, isPerformingLogging, isPreferPreciseTransformers, isSpecializable, recordVisit, setComponents, setPreferPreciseTransformers, setSpecializer, specialize

Methods inherited from class net.sf.morph.transform.transformers.BaseCompositeTransformer

getComponentType, getComponentValidator, isNarrowingComponentArray, isWrappingRuntimeExceptions, setComponentValidator, setNestedTransformer, updateNestedTransformerComponents

Methods inherited from class net.sf.morph.transform.transformers.BaseTransformer

convert, convert, copy, copy, createDefaultReflector, createNewInstance, createNewInstanceImpl, equals, equals, equalsUnidirectionalTest, getDestinationClasses, getInstantiatingReflector, getLocale, getLog, getNestedTransformer, getReflector, getReflector, getSourceClasses, getTransformableCallCache, getTransformerName, initialize, isCachingIsTransformableCalls, isImpreciseTransformation, isInitialized, isTransformable, setCachingIsTransformableCalls, setDestinationClasses, setInitialized, setLog, setReflector, setSourceClasses, setTransformableCallCache, setTransformerName, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.morph.transform.ExplicitTransformer

isTransformable

Methods inherited from interface net.sf.morph.transform.Transformer

getDestinationClasses, getSourceClasses

Methods inherited from interface net.sf.morph.transform.DecoratedCopier

copy

Methods inherited from interface net.sf.morph.transform.Copier

copy

Methods inherited from interface net.sf.morph.transform.Transformer

getDestinationClasses, getSourceClasses

Methods inherited from interface net.sf.morph.transform.Transformer

getDestinationClasses, getSourceClasses

Methods inherited from interface net.sf.morph.transform.ExplicitTransformer

isTransformable

Methods inherited from interface net.sf.morph.transform.DecoratedConverter

convert, equals, equals

Methods inherited from interface net.sf.morph.transform.Converter

convert

Methods inherited from interface net.sf.morph.transform.Transformer

getDestinationClasses, getSourceClasses

Methods inherited from interface net.sf.morph.transform.Transformer

getDestinationClasses, getSourceClasses

Methods inherited from interface net.sf.morph.transform.ExplicitTransformer

isTransformable

Methods inherited from interface net.sf.morph.transform.ImpreciseTransformer

isImpreciseTransformation

Constructor Detail

DefaultToBooleanConverter

public DefaultToBooleanConverter()

Method Detail

createDefaultComponents

protected Transformer[] createDefaultComponents()

Create the default set of Transformer components.

Overrides:

createDefaultComponents in class SimpleDelegatingTransformer

Returns:

Transformer[]

getDestinationClassesImpl

protected java.lang.Class[] getDestinationClassesImpl()
                                               throws java.lang.Exception

Transformer.getDestinationClasses() implementation template method.

Overrides:

getDestinationClassesImpl in class SimpleDelegatingTransformer

Returns:

Class[]

Throws:

java.lang.Exception

See Also:

BaseTransformer.getDestinationClassesImpl()

isTransformableImpl

protected boolean isTransformableImpl(java.lang.Class destinationType,
                                      java.lang.Class sourceType)
                               throws java.lang.Exception

Determines if one of the delegate transformers is capable of performing the given transformation. This method is necessary because otherwise the delegating transformer would be too eager in what it says it can convert. For example, if a delegate transformer was capable of transforming A to B and another delegate was capable of transforming C to D, this transformer would incorrectly state that transforming A to D and C to B was possible even though they are not.

Overrides:

isTransformableImpl in class SimpleDelegatingTransformer

Parameters:

destinationType - the destination type to test

sourceType - the source type to test

Returns:

whether the destination type is transformable to the source type

Throws:

TransformationException - if it could not be determined if sourceType is transformable into destinationType

java.lang.Exception