All Downloads are FREE. Search and download functionalities are using the official Maven repository.
  • Log In
  • Register

    • com.quinsoft.zeidon.standardoe.GeneratedKeyImpl Maven / Gradle / Ivy

    The newest version!
    /**
    This file is part of the Zeidon Java Object Engine (Zeidon JOE).

    Zeidon JOE 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 3 of the License, or
    (at your option) any later version.

    Zeidon JOE 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 Zeidon JOE.  If not, see .

    Copyright 2009-2015 QuinSoft
 */
package com.quinsoft.zeidon.standardoe;

import com.quinsoft.zeidon.GeneratedKey;
import com.quinsoft.zeidon.ZeidonException;

/**
 * Standard implementation of a GeneratedKey.
 */
public class GeneratedKeyImpl implements GeneratedKey
{
    private final    Comparable  nativeValue;
    private volatile String stringValue;

    public GeneratedKeyImpl( Comparable value )
    {
        nativeValue = value;
    }

    /* (non-Javadoc)
     * @see com.quinsoft.zeidon.GeneratedKey#isNull()
     */
    @Override
    public boolean isNull()
    {
        return nativeValue == null;
    }

    @Override
    public String getString()
    {
        if ( isNull() )
            throw new ZeidonException( "Attempting to convert null GeneratedKey to a string" );

        if ( stringValue == null )
            stringValue = nativeValue.toString();

        return stringValue;
    }

    @Override
    public String toString()
    {
        if ( isNull() )
            return "Key: (null)";

        if ( stringValue == null )
            stringValue = nativeValue.toString();

        return "Key: " + stringValue;
    }

    @Override
    public Object getNativeValue()
    {
        return nativeValue;
    }

    @Override
    public int hashCode()
    {
        if ( nativeValue == null )
            return 0;

        return nativeValue.hashCode();
    }

    @Override
    public boolean equals( Object obj )
    {
        if ( nativeValue == null )
        {
            if ( obj == null )
                return true;
            else
                return false;
        }

        if ( obj instanceof GeneratedKey )
            return getString().equals( ((GeneratedKey) obj ).getString() );

        return nativeValue.equals( obj );
    }

    @Override
    public int compareTo( Object o )
    {
        if ( o instanceof GeneratedKeyImpl )
            return getString().compareTo( ((GeneratedKeyImpl) o).getString() );

        return nativeValue.compareTo( o );
    }
}
    
    
    
    

    




    
    
    © 2015 - 2024 Weber Informatics LLC | Privacy Policy