org.apache.tapestry.services
Interface ExpressionCache

All Known Implementing Classes:

ExpressionCacheImpl

public interface ExpressionCache

Cache of compiled OGNL expressions.

Since:

4.0

Author:

Howard M. Lewis Ship

Method Summary

Object	getCompiledExpression(Object target, String expression) Returns the compiled ognl expression for the given target object class / expression combination.
Object	getCompiledExpression(String expression) Returns the compiled form of the OGNL expression.

Method Detail

getCompiledExpression

Object getCompiledExpression(String expression)

Returns the compiled form of the OGNL expression.

Throws:

org.apache.hivemind.ApplicationRuntimeException - if the expression is not valid

getCompiledExpression

Object getCompiledExpression(Object target,
                             String expression)

Returns the compiled ognl expression for the given target object class / expression combination.

Parameters:

target - The object this expression is to be used for.

expression - The expression.

Returns:

The compiled (or new if neccessary) ognl statement.