DDAttribute.java

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package edu.tum.cs.srldb.datadict;

import java.io.Serializable;

import edu.tum.cs.srldb.datadict.domain.BooleanDomain;
import edu.tum.cs.srldb.datadict.domain.DiscardedDomain;
import edu.tum.cs.srldb.datadict.domain.Domain;
import kdl.prox3.dbmgr.DataTypeEnum;

public class DDAttribute implements Cloneable, Serializable {
        private static final long serialVersionUID = 1L;
        protected String name;
        protected Domain domain;
        protected boolean doClustering;
        protected Integer numClusters;
        protected boolean discarded;
        protected DDItem owner;
        
        protected DDAttribute(String name) {
                this.name = name;
                this.domain = null;
                this.doClustering = false;
                this.numClusters = null;
                this.discarded = false;
                this.owner = null;
        }
        
        public DDAttribute(String name, Domain domain) {
                this(name);
                this.domain = domain;
        }
        
        public DDAttribute(String name, Domain domain, boolean doClustering) {
                this(name, domain);
                this.doClustering = doClustering;
        }
        
        public void setClustering(boolean doClustering) {
                this.doClustering = doClustering;
        }
        
        public void setClustering(Integer numClusters) {
                this.doClustering = true;
                this.numClusters = numClusters;
        }
        
        public String getName() {
                return name;
        }
        
        public DataTypeEnum getType() {
                return domain.getType();
        }
        
        public boolean requiresClustering() {
                return doClustering;
        }
        
        public Integer getNumClusters() {
                return numClusters;
        }
        
        public Domain getDomain() {
                return domain;
        }
        
        public boolean isBoolean() {
                return domain instanceof BooleanDomain;
        }
        
        public void discard() {
                discarded = true;
                domain = DiscardedDomain.getInstance(); // avoid wasting space on domain data
        }
        
        public boolean isDiscarded() {
                return this.discarded;
        }
        
        public DDAttribute clone() {
                try {
                        return (DDAttribute)super.clone();
                }
                catch (CloneNotSupportedException e) { return null; }           
        }

        public void setName(String name) {
                this.name = name;
        }
        
        public void setDomain(Domain domain) {
                this.domain = domain;
        }
        
        public void setOwner(DDItem item) throws DDException {
                if(owner == null || item == null)
                        owner = item;
                else
                        throw new DDException("Error: Cannot add attribute " + this.getName() + " to more than one item; previously added to " + this.owner.getName());
        }
        
        public DDItem getOwner() {
                return owner;
        }
        
        public String toString() {
                return String.format("DDAttribute:%s[domain=%s/size=%d, discarded=%s, clustering=%s/%s]", name, domain.getClass().getSimpleName(), domain.getValues().length, Boolean.toString(discarded), Boolean.toString(doClustering), numClusters == null ? "auto" : numClusters.toString());
        }
}

---

srldb
Author(s): Dominik Jain, Stefan Waldherr, Moritz Tenorth
autogenerated on Fri Jan 11 09:58:29 2013