org.milyn.javabean.expression

Class BeanMapExpressionEvaluator

java.lang.Object

org.milyn.expression.MVELExpressionEvaluator

org.milyn.javabean.expression.BeanMapExpressionEvaluator

All Implemented Interfaces:

ExecutionContextExpressionEvaluator, ExpressionEvaluator

public class BeanMapExpressionEvaluator
extends MVELExpressionEvaluator
implements ExecutionContextExpressionEvaluator

Javabean Cartridge bean Map expression evaluator.

Evaluates MVEL expressions on java objects bound to the supplied ExecutionContext via the BeanContext.

Cab be used to selectively target resources based on the contents of the java objects bound to the supplied ExecutionContext via the BeanContext.

The special EC variable gives access to the EditingContext.

Author:

tom.fennelly@gmail.com

Nested Class Summary

Nested classes/interfaces inherited from interface org.milyn.expression.ExpressionEvaluator

ExpressionEvaluator.Factory

Field Summary

Fields

Modifier and Type	Field and Description
static String	MVEL_EXECUTION_CONTEXT_KEY

Constructor Summary

Constructors

Constructor and Description
BeanMapExpressionEvaluator()
BeanMapExpressionEvaluator(String expression)

Method Summary

Modifier and Type	Method and Description
boolean	eval(ExecutionContext context) Evaluate an expression based on the supplied ExecutionContext.
Object	getValue(ExecutionContext context) Evaluate an expression based on the supplied ExecutionContext and return the value.

Methods inherited from class org.milyn.expression.MVELExpressionEvaluator

eval, exec, exec, getCompiled, getExpression, getValue, setExpression, setToType, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.milyn.expression.ExpressionEvaluator

eval, getExpression, getValue, setExpression

Field Detail

MVEL_EXECUTION_CONTEXT_KEY

public static final String MVEL_EXECUTION_CONTEXT_KEY

See Also:

Constant Field Values

Constructor Detail

BeanMapExpressionEvaluator

public BeanMapExpressionEvaluator()

BeanMapExpressionEvaluator

public BeanMapExpressionEvaluator(String expression)
                           throws SmooksConfigurationException

Throws:

SmooksConfigurationException

Method Detail

eval

public boolean eval(ExecutionContext context)
             throws ExpressionEvaluationException

Description copied from interface: ExecutionContextExpressionEvaluator

Evaluate an expression based on the supplied ExecutionContext.

Specified by:

eval in interface ExecutionContextExpressionEvaluator

Parameters:

context - The context.

Returns:

True if the condition evaluates successfully, otherwise false.

Throws:

ExpressionEvaluationException - Invalid expression evaluation (implementation specific).

getValue

public Object getValue(ExecutionContext context)
                throws ExpressionEvaluationException

Description copied from interface: ExecutionContextExpressionEvaluator

Evaluate an expression based on the supplied ExecutionContext and return the value.

Specified by:

getValue in interface ExecutionContextExpressionEvaluator

Parameters:

context - The context.

Returns:

Expression evaluation result.

Throws:

ExpressionEvaluationException - Invalid expression evaluation (implementation specific).