Package org.kuali.rice.krms.framework.engine.expression

Class FunctionExpression

java.lang.Object

org.kuali.rice.krms.framework.engine.expression.FunctionExpression

All Implemented Interfaces:

Expression<Object>

public final class FunctionExpression
extends Object
implements Expression<Object>

An implementation of Expression which invokes a Function with the results of the invocation of the given List of Expressions (of the given ExecutionEnvironment).

Author:

Kuali Rice Team (rice.collab@kuali.org)

Constructor Summary

Constructors

Constructor	Description
FunctionExpression(Function function, String[] parameterTypes, List<Expression<? extends Object>> parameters, org.kuali.rice.krms.api.engine.expression.ComparisonOperatorService comparisonOperatorService)	Create a FunctionExpression with the given values.

Method Summary

Modifier and Type	Method	Description
Object	invoke(org.kuali.rice.krms.api.engine.ExecutionEnvironment environment)	Invoke on the given ExecutionEnvironment.

Methods inherited from class java.lang.Object

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

Constructor Details

FunctionExpression

public FunctionExpression(Function function,
 String[] parameterTypes,
 List<Expression<? extends Object>> parameters,
 org.kuali.rice.krms.api.engine.expression.ComparisonOperatorService comparisonOperatorService)

Create a FunctionExpression with the given values.

Parameters:

function - Function to be invoked using the invoked results of the given List of Expressions

parameterTypes - the full class names for the function's parameter types in sequential order

parameters - List of Expressions to be invoked whose results (of the given ExecutionEnvironment)

comparisonOperatorService - -- TODO: will be used to invoke the given Function.

Method Details

invoke

public Object invoke(org.kuali.rice.krms.api.engine.ExecutionEnvironment environment)

Description copied from interface: Expression

Invoke on the given ExecutionEnvironment.

Specified by:

invoke in interface Expression<Object>

Parameters:

environment - ExecutionEnvironment to invoke on.

Returns:

T