org.datanucleus.query.inmemory.method

Class OptionalGetMethod

java.lang.Object

org.datanucleus.query.inmemory.method.OptionalGetMethod

All Implemented Interfaces:

InvocationEvaluator

public class OptionalGetMethod
extends Object
implements InvocationEvaluator

Evaluator for the method "{optionalExpr}.get()".

Constructor Summary

Constructors

Constructor and Description
OptionalGetMethod()

Method Summary

Modifier and Type	Method and Description
Object	evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) Method to evaluate the InvokeExpression, as part of the overall evaluation defined by the InMemoryExpressionEvaluator.

Methods inherited from class java.lang.Object

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

Constructor Detail

OptionalGetMethod

public OptionalGetMethod()

Method Detail

evaluate

public Object evaluate(InvokeExpression expr,
                       Object invokedValue,
                       InMemoryExpressionEvaluator eval)

Description copied from interface: InvocationEvaluator

Method to evaluate the InvokeExpression, as part of the overall evaluation defined by the InMemoryExpressionEvaluator.

Specified by:

evaluate in interface InvocationEvaluator

Parameters:

expr - The expression for invocation

invokedValue - Value on which we are invoking

eval - The overall evaluator for in-memory

Returns:

The result