Description

<dependency>
    <groupId>com.javasolver</groupId>
    <artifactId>jsr331-constrainer</artifactId>
    <version>2.3.3</version>
</dependency>

<project xmlns="http://maven.apache.org/POM/4.0.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	
	<parent>
		<groupId>com.javasolver</groupId>
		<artifactId>jsr331-parent</artifactId> 
		<version>2.3.3</version>
	</parent>
	
	<artifactId>jsr331-constrainer</artifactId>
	
	<name>JSR331 Constrainer</name>
	<description>This is a JSR331 implementation based on the Java constraint programming library "Constrainer" available under the terms of the open source GNU LGPL license.</description>
	<url>https://github.com/OpenRulesSupport/jsr331</url>

	<licenses>
		<license>
			<name>JCP License</name>
			<url>https://download.oracle.com/otndocs/jcp/constraint-1_1_0-mrel-spec/license.html</url>
			<distribution>repo</distribution>
			<comments>Open source license that allows unresticted use by the commercial and open source applications</comments>
		</license>
	</licenses>

	<developers>
		<developer>
			<name>Jacob Feldman</name>
			<email>jacobfeldman@openrules.com</email>
			<organization>OpenRules, Inc.</organization>
			<organizationUrl>https://openrules.com</organizationUrl>
		</developer>
	</developers>
	
	<dependencies>
		<dependency>
			<groupId>com.javasolver</groupId>
			<artifactId>jsr331</artifactId>
			<version>${project.version}</version>
		</dependency>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.12</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-api</artifactId>
			<version>${log4j.version}</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-core</artifactId>
			<version>${log4j.version}</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-slf4j-impl</artifactId>
			<version>${log4j.version}</version>
			<scope>test</scope>
		</dependency>
		
	</dependencies>
	
	
<!--  
This is a light-weight version of the Java Constraint Programming library
known as "Constrainer" 

///////////////////////////////////////////////////////////////////////////////
/*
 * Copyright Exigen Group 1998, 1999, 2000
 * 320 Amboy Ave., Metuchen, NJ, 08840, USA, www.exigengroup.com
 *
 * The copyright to the computer program(s) herein
 * is the property of Exigen Group, USA. All rights reserved.
 * The program(s) may be used and/or copied only with
 * the written permission of Exigen Group
 * or in accordance with the terms and conditions
 * stipulated in the agreement/contract under which
 * the program(s) have been supplied.
 */
///////////////////////////////////////////////////////////////////////////////

The original Constrainer was developed in 1998-1999 by Jacob Feldman of 
IntelEngine, Inc. In 2000 IntelEngine was acquired by Exigen Group that made
Constrainer publicly available under the terms of open source GNU LGPL 
license from the SourceForge: http://sourceforge.net/projects/constrainer/

In 2010 JCP Standard JSR-331 "Constraint Programming API" has been developed -
see https://jcp.org/en/jsr/detail?id=331. It allows Java developers to utilize
different off-the-shelf constraint solvers without changing the problem definition. 
Exigen's Constrainer was selected among other constraint solvers to be included 
into JSR-331.

This is a modified version of Exigen's Constrainer that contains only 
pure constraint programming concepts needed to support the JSR-331. 
The source code of the Exigen's Constrainer version 5.4 was downloaded from:
  cvs -d:pserver:anonymous@openl-tablets.cvs.sourceforge.net:/cvsroot/openl-tablets

The modified source code of this version keeps all Exigen Copyright notices. 
All modifications in the source code are marked by "== Changed". 

Major Changes and Bug Fixes:

April,2024
==========

Fixed the error in Constrainer's method "execute" related to TimeLimit.

December, 2021
==============
Switch to log4J release 2.16.0 to avoid its security vulnerability

April, 2020
===========
The Constrainer has been made available from the public GitHub and MVN 
repositories under the terms of open source GNU LGPL.

The development and deployment facilities were modernized to support
modern building and version control options. The modified Constrainer is
available from the public GitHub and MVN repositories as an open source
product with unresticted use by the commercial and open source applications.

August, 2012
============
Constrainer did not correctly stop upon a time limit for one solution search. 
Fixed problems in Constrainer's execute() and GoalFastMinimize.

March, 2010 
===========
The search Time Limit originally defined in seconds has been changed to
support milliseconds

March, 2010
===========
An error was found in constrainer/impl/IntExpArrayElement1.java
The test /tests/TestElementConstraint.java triggered an java.lang.RuntimeException: 
Invalid elementAt-expression: [A[10] B[4..10] C[7..10]][ind[0..2]]. 
java.lang.ArrayIndexOutOfBoundsException: 7
The fix: in the line 944 of IntExpArrayElement1:935 
"min < values[valCounter-1]" had been replaced with "min <= values[valCounter-1]"
The TestIntExpElementAt1.java works fine.

Switched from commons.logging to slf4j

The following packages have been removed:
- com.exigen.ie.ccc
- com.exigen.ie.constrainer.consistencyChecking
- com.exigen.ie.constrainer.lpsolver
- com.exigen.ie.constrainer.lpsolver.impl
- com.exigen.ie.exigensimplex
- com.exigen.ie.exigensimplex.glpkimpl
- com.exigen.ie.simplex
- org.open.crt
- org.openl.util

-->
	
</project>