org.springframework.binding.convert.support
Class TextToExpression

java.lang.Object
  org.springframework.binding.convert.support.AbstractConverter
      org.springframework.binding.convert.support.TextToExpression

All Implemented Interfaces:

Converter

public class TextToExpression
extends AbstractConverter

Converter that converts a String into an Expression object.

Author:

Erwin Vervaet

See Also:

Expression, SettableExpression

Constructor Summary

TextToExpression(ExpressionParser expressionParser)
Creates a new string-to-expression converter.

Method Summary

protected java.lang.Object	doConvert(java.lang.Object source, java.lang.Class targetClass, ConversionContext context) Template method subclasses should override to actually perform the type conversion.
ExpressionParser	getExpressionParser() Returns the expression parser used by this converter.
java.lang.Class[]	getSourceClasses() The source classes this converter can convert from.
java.lang.Class[]	getTargetClasses() The target classes this converter can convert to.

Methods inherited from class org.springframework.binding.convert.support.AbstractConverter

convert, convert, convert, convert

Methods inherited from class java.lang.Object

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

Constructor Detail

TextToExpression

public TextToExpression(ExpressionParser expressionParser)

Creates a new string-to-expression converter.

Parameters:

expressionParser - the expression string parser

Method Detail

getExpressionParser

public ExpressionParser getExpressionParser()

Returns the expression parser used by this converter.

getSourceClasses

public java.lang.Class[] getSourceClasses()

Description copied from interface: Converter

The source classes this converter can convert from.

Returns:

the supported source classes

getTargetClasses

public java.lang.Class[] getTargetClasses()

Description copied from interface: Converter

The target classes this converter can convert to.

Returns:

the supported target classes

doConvert

protected java.lang.Object doConvert(java.lang.Object source,
                                     java.lang.Class targetClass,
                                     ConversionContext context)
                              throws java.lang.Exception

Description copied from class: AbstractConverter

Template method subclasses should override to actually perform the type conversion.

Specified by:

doConvert in class AbstractConverter

Parameters:

source - the source to convert from

targetClass - the target type to convert to

context - an optional conversion context that may be used to influence the conversion process, could be null

Returns:

the converted source value

Throws:

java.lang.Exception - an exception occured, will be wrapped in a conversion exception if necessary