net.sf.morph.transform.converters
Class TextToClassConverter

java.lang.Object
  net.sf.morph.transform.transformers.BaseTransformer
      net.sf.morph.transform.converters.TextToClassConverter

All Implemented Interfaces:

net.sf.composite.Component, Converter, DecoratedConverter, DecoratedTransformer, ExplicitTransformer, Transformer

public class TextToClassConverter
extends BaseTransformer
implements Converter, DecoratedConverter

Converts a basic text type (String or StringBuffer) into a Class. Array types are supported, by appending [] to the end of the contained class name. If [] is appended n times, the returned class will be n-dimensional.

Since:

Jan 2, 2005

Author:

Matt Sgarlata

Field Summary

static java.lang.String

ARRAY_INDICATOR Array indicator

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

Constructor Summary

TextToClassConverter()

Method Summary

protected java.lang.Object	convertImpl(java.lang.Class destinationClass, java.lang.Object source, java.util.Locale locale) The implementation of the convert method, which may omit the invalid argument checks already performed by this base class.
protected java.lang.Class[]	getDestinationClassesImpl() Transformer.getDestinationClasses() implementation template method.
protected java.lang.Class[]	getSourceClassesImpl() Transformer.getSourceClasses() implementation template method.
Converter	getTextConverter() Get the text converter used by this TextToClassConverter.
boolean	isUseCache() Get the useCache of this TextToClassConverter.
protected boolean	isWrappingRuntimeExceptions() Indicates whether runtime exceptions should be wrapped as TransformationExceptions.
void	setTextConverter(Converter textConverter) Set the text converter used by this TextToClassConverter.
void	setUseCache(boolean useCache) Set the useCache of this TextToClassConverter.

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

clone, convert, convert, copy, copy, copyImpl, createDefaultReflector, createNewInstance, createNewInstanceImpl, createReusableSource, equals, equals, equalsUnidirectionalTest, getDestinationClasses, getInstantiatingReflector, getLocale, getLog, getNestedTransformer, getReflector, getReflector, getSourceClasses, getTransformableCallCache, getTransformerName, initialize, initializeImpl, isAutomaticallyHandlingNulls, isCachingIsTransformableCalls, isImpreciseTransformation, isImpreciseTransformationImpl, isInitialized, isPerformingLogging, isTransformable, isTransformableImpl, setCachingIsTransformableCalls, setDestinationClasses, setInitialized, setLog, setNestedTransformer, 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.Transformer

getDestinationClasses, getSourceClasses

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

convert, equals, equals

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

Field Detail

ARRAY_INDICATOR

public static final java.lang.String ARRAY_INDICATOR

Array indicator

See Also:

Constant Field Values

Constructor Detail

TextToClassConverter

public TextToClassConverter()

Method Detail

convertImpl

protected java.lang.Object convertImpl(java.lang.Class destinationClass,
                                       java.lang.Object source,
                                       java.util.Locale locale)
                                throws java.lang.Exception

The implementation of the convert method, which may omit the invalid argument checks already performed by this base class. By default, this method creates a new instance of the destinationClass and copies information from the source to the destination. This implementation should be fine as-is for Copiers, but Converters will need to implement this method since they will not be implementing the copy method.

Overrides:

convertImpl in class BaseTransformer

locale - the locale in which the conversion should take place. for converters that are not locale-aware, the local argument can simply be ignored

Throws:

java.lang.Exception

getDestinationClassesImpl

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

Transformer.getDestinationClasses() implementation template method.

Specified by:

getDestinationClassesImpl in class BaseTransformer

Returns:

Class[]

Throws:

java.lang.Exception

getSourceClassesImpl

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

Transformer.getSourceClasses() implementation template method.

Specified by:

getSourceClassesImpl in class BaseTransformer

Returns:

Class[]

Throws:

java.lang.Exception

getTextConverter

public Converter getTextConverter()

Get the text converter used by this TextToClassConverter.

Returns:

Converter

setTextConverter

public void setTextConverter(Converter textConverter)

Set the text converter used by this TextToClassConverter.

Parameters:

textConverter -

isUseCache

public boolean isUseCache()

Get the useCache of this TextToClassConverter.

Returns:

the useCache

setUseCache

public void setUseCache(boolean useCache)

Set the useCache of this TextToClassConverter.

Parameters:

useCache - the useCache to set

isWrappingRuntimeExceptions

protected boolean isWrappingRuntimeExceptions()

Indicates whether runtime exceptions should be wrapped as TransformationExceptions. By default, this method returns true.

Simple transformers in Morph that operate on JDK types like Numbers and Strings will usually set this value to true so that they throw TransformationExceptions if problems occur. More complex transformers that operate on graphs of objects are encouraged to set this value to false so that runtime exceptions are not wrapped. This way, problems accessing data will be expressed by the native API of a user's domain objects and avoid the need to catch Morph-specific exceptions (assuming the use of runtime exceptions in said domain objects).

Overrides:

isWrappingRuntimeExceptions in class BaseTransformer

Returns:

true