org.apache.tapestry.coerce

Interface ValueConverter

All Known Implementing Classes:

ValueConverterImpl

public interface ValueConverter

Converts a value (possibly null) to an alternate data type; typically from String to boolean or a number type.

Typically, a ValueConverter will select a particular TypeConverterto perform the conversion. The ValueConverterImplimplementation also makes use of built-in PropertyEditors.

Since:

4.0

Author:

Howard M. Lewis Ship

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	coerceValue(java.lang.Object value, java.lang.Class desiredType) Performs a conversion of a value to a particular type.

Method Detail

coerceValue

java.lang.Object coerceValue(java.lang.Object value,
                           java.lang.Class desiredType)

Performs a conversion of a value to a particular type.

Parameters:

value - The value to be converted (may be null)

desiredType - the type that will be converted to

Throws:

org.apache.hivemind.ApplicationRuntimeException - if the value can not be converted