org.datanucleus.query.evaluator.memory

Class MapGetMethodEvaluator

java.lang.Object

org.datanucleus.query.evaluator.memory.MapGetMethodEvaluator

All Implemented Interfaces:

InvocationEvaluator

public class MapGetMethodEvaluator
extends Object
implements InvocationEvaluator

Evaluator for the method "{mapExpr}.get(keyExpr)".

Field Summary

Fields

Modifier and Type	Field and Description
protected static Localiser	LOCALISER Localisation utility for output messages

Constructor Summary

Constructors

Constructor and Description
MapGetMethodEvaluator()

Method Summary

Methods

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

Field Detail

LOCALISER

protected static final Localiser LOCALISER

Localisation utility for output messages

Constructor Detail

MapGetMethodEvaluator

public MapGetMethodEvaluator()

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