com.goldencode.p2j.persist

Class RuntimeJastInterpreter.DatetimeExpressionAdapter

java.lang.Object

com.goldencode.p2j.util.DatetimeExpression

com.goldencode.p2j.persist.RuntimeJastInterpreter.DatetimeExpressionAdapter

All Implemented Interfaces:

Resolvable

Enclosing class:

RuntimeJastInterpreter

static class RuntimeJastInterpreter.DatetimeExpressionAdapter
extends DatetimeExpression

Adapter for an adapter class built using an anonymous constructor of the class DatetimeExpression. Overriding JASTs should implement at least the execute method. The evaluation of result of the overridden method is delegated to the interpreter.

This class is immutable so the instances of it are constants, once created, the internal data cannot be changed.

Field Summary

Fields

Modifier and Type	Field and Description
private JavaAst	executeMethod The JAST tree that describes the execute method to be implemented by this object.
private RuntimeJastInterpreter	interpreter The RuntimeJastInterpreter that will handle interpretation of this anonymous object.

Constructor Summary

Constructors

Constructor and Description
DatetimeExpressionAdapter(RuntimeJastInterpreter interpreter, JavaAst executeMethod) The only constructor.

Method Summary

Modifier and Type	Method and Description
datetime	execute() Evaluates the execute method.

Methods inherited from class com.goldencode.p2j.util.DatetimeExpression

getType, resolve

Methods inherited from class java.lang.Object

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

Field Detail

interpreter

private RuntimeJastInterpreter interpreter

The RuntimeJastInterpreter that will handle interpretation of this anonymous object. Must not be null.

executeMethod

private JavaAst executeMethod

The JAST tree that describes the execute method to be implemented by this object.

Constructor Detail

DatetimeExpressionAdapter

public DatetimeExpressionAdapter(RuntimeJastInterpreter interpreter,
                                 JavaAst executeMethod)

The only constructor. Takes a parameters the interpreter to which the evaluation of the execute method is delegated and the JAST of the implemented method.

Parameters:

interpreter - The RuntimeJastInterpreter responsible with interpretation of the methods overridden by this anonymous object.

executeMethod - The JAST that describes the execute method.

Method Detail

execute

public datetime execute()

Evaluates the execute method. If overridden, the interpreter is responsible for interpretation of the JAST, otherwise the super method is called.

Overrides:

execute in class DatetimeExpression

Returns:

the interpreted result of the method.