Package microsim.reflection

Class LongValueExtractor

java.lang.Object

microsim.reflection.LongValueExtractor

public class LongValueExtractor
extends Object

Not of interest for users. It uses java reflection to call objects' methods which return double values. It is used by Statistics objects.

Title: JAS

Description: Java Agent-based Simulation library

Copyright (C) 2002 Michele Sonnessa

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.

Author:

Michele Sonnessa

Field Summary

Fields

Modifier and Type	Field	Description
protected Field	field
protected Method	method
protected Object	target

Constructor Summary

Constructors

Constructor	Description
LongValueExtractor(Class<?> target, String fieldName, boolean isMethod)	Constructor.
LongValueExtractor(Object target, String fieldName, boolean isMethod)	Constructor.

Method Summary

Modifier and Type	Method	Description
long	getLong()	Invoke the method of the object passed to constructor and return its double result.
long	getLong(Object target)	Invoke the method of the target object and return its double result.
long	getLongValue(int valueID)	This is an implementation of the IDblSource interface.

Methods inherited from class java.lang.Object

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

Field Details

method

protected Method method

field

protected Field field

target

protected Object target

Constructor Details

LongValueExtractor

public LongValueExtractor(Object target,
 String fieldName,
 boolean isMethod)

Constructor.

Parameters:

target - It is the target object.

fieldName - A string representing the name of the method to invoke.

isMethod - If true the fieldName is a method, otherwise it is a property of the object.

LongValueExtractor

public LongValueExtractor(Class<?> target,
 String fieldName,
 boolean isMethod)

Constructor.

Parameters:

target - It is the class of the target object.

fieldName - A string representing the name of the method to invoke.

isMethod - If true the fieldName is a method, otherwise it is a property of the object.

Method Details

getLong

public long getLong(Object target)

Invoke the method of the target object and return its double result.

Parameters:

target - Object to be invoked.

Returns:

The requested double value.

getLong

public long getLong()

Invoke the method of the object passed to constructor and return its double result.

Returns:

The requested double value.

getLongValue

public long getLongValue(int valueID)

This is an implementation of the IDblSource interface. It calls the getDouble() method.

Parameters:

valueID - This parameter is ignored. It is put for compatibility with the IDblSource interface.

Returns:

The requested double value.