source: trunk/CrossPare/src/de/ugoe/cs/cpdp/versions/SoftwareVersion.java @ 29

package de.ugoe.cs.cpdp.versions;

import weka.core.Instances;

/**
 * Data class for software versions. 
 * @author Steffen Herbold
 */
public class SoftwareVersion implements Comparable<SoftwareVersion> {

        /**
         * name of the project
         */
        private final String project;
        
        /**
         * version of the project
         */
        private final String version;

        /**
         * data of the version
         */
        private final Instances instances;
        
        /**
         * Constructor. Creates a new version. 
         * @param project name of the project
         * @param version name of the version
         * @param instances data of the version
         */
        public SoftwareVersion(String project, String version, Instances instances) {
                this.project = project;
                this.version = version;
                this.instances = instances;
        }
        
        /**
         * returns the project name
         * @return project name
         */
        public String getProject() {
                return project;
        }
        
        /**
         * returns the name of the version
         * @return name of the version
         */
        public String getVersion() {
                return version;
        }
        
        /**
         * returns the data of the version
         * @return data
         */
        public Instances getInstances() {
                return new Instances(instances);
        }

        /** 
         * Compares first based on project name and then based on version. Only string comparisons are performed. 
         * @see java.lang.Comparable#compareTo(java.lang.Object)
         */
        @Override
        public int compareTo(SoftwareVersion o) {
                int projectStrCmp = 0;
                if( project!=null ) {
                        projectStrCmp = project.compareTo(o.project);
                } 
                if( projectStrCmp==0 && version!=null ) {
                        return version.compareTo(o.version);                    
                } else {
                        return projectStrCmp;
                }
        }
}