Show PString.java syntax highlighted
/*
* PString.java
*
* Created on March 29, 2007, 1:55 PM
*
* Description: PString is a persistent string in the Texai logical representation language.
*
* Copyright (C) 2007 Stephen L. Reed.
*
* This program is free software; you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with this program;
* if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.texai.kb.entity;
import com.sleepycat.persist.model.Entity;
import com.sleepycat.persist.model.Relationship;
import com.sleepycat.persist.model.SecondaryKey;
import org.texai.kb.Constants;
import org.texai.kb.ejb.session.shared.KBPartitionFacadeLocal;
/**
*
* @author reed
*/
@Entity
public class PString extends AbstractTerm {
/** the string value hash code */
@SecondaryKey(relate=Relationship.MANY_TO_ONE)
private int stringValueHashCode;
/** the string value */
private String stringValue; // NOPMD
/** Creates a new instance of PString. */
public PString() {
super();
}
/** Creates a new instance of PString.
*
* @param termId the database term ID
* @param stringValue the string value
*/
public PString(final int termId, final String stringValue) {
super(termId);
//Preconditions
assert stringValue != null : "stringValue must not be null";
this.stringValue = stringValue;
this.stringValueHashCode = stringValue.hashCode();
}
/** Gets the term type.
*
* @return the term type
*/
public byte getTermType() {
return Constants.STRING;
}
/** Gets the string value
*
* @return the string value
*/
public String getStringValue() {
return stringValue;
}
/**
* Returns a hash code value for the object.
* @return a hash code value for this object
*/
@Override
public int hashCode() {
return getTermId();
}
/**
* Determines whether another object is equal to this object.
*
* @param object the reference object with which to compare
* @return <code>true</code> if this object is the same as the argument;
* <code>false</code> otherwise.
*/
@Override
public boolean equals(final Object object) {
if (!(object instanceof PString)) {
return false;
}
final PString that = (PString) object;
return this.getTermId() == that.getTermId();
}
/** Returns a string representation of this object.
*
* @param kbPartitionFacade the KB partition facade
* @return a string representation of this object
*/
@Override
public String toString(final KBPartitionFacadeLocal kbPartitionFacade) {
return "\"" + stringValue + "\"";
}
/** Returns a CycL representation of this object.
*
* @param kbPartitionFacade the KB partition facade
* @return a CycL representation of this object
*/
public String toCycLString(final KBPartitionFacadeLocal kbPartitionFacade) {
return toString(kbPartitionFacade);
}
}
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