com.bigdata.btree.keys.ASCIIKeyBuilderFactory Maven / Gradle / Ivy

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/*

Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016.  All rights reserved.

Contact:
     SYSTAP, LLC DBA Blazegraph
     2501 Calvert ST NW #106
     Washington, DC 20008
     [email protected]

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; version 2 of the License.

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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/
/*
 * Created on Jul 7, 2008
 */

package com.bigdata.btree.keys;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.io.Serializable;


/**
 * Factory for instances that do NOT support Unicode.
 * 
 * @author Bryan Thompson
 */
public class ASCIIKeyBuilderFactory implements IKeyBuilderFactory, Externalizable {

    /**
     * 
     */
    private static final long serialVersionUID = -8823261532997841046L;
    
    private int initialCapacity;
    
    public int getInitialCapacity() {
        
        return initialCapacity;
        
    }

    /**
     * Representation includes all aspects of the {@link Serializable} state.
     */
    @Override
    public String toString() {
        
        StringBuilder sb = new StringBuilder(getClass().getName());
        
        sb.append("{ initialCapacity=" + initialCapacity);
        
        sb.append("}");
        
        return sb.toString();
        
    }
    
    /**
     * De-serialization ctor.
     */
    public ASCIIKeyBuilderFactory() {
        
    }
    
    public ASCIIKeyBuilderFactory(int initialCapacity) {
    
        if (initialCapacity < 0)
            throw new IllegalArgumentException();
        
        this.initialCapacity = initialCapacity;
        
    }
    
    @Override
    public IKeyBuilder getKeyBuilder() {

        return KeyBuilder.newInstance(initialCapacity);
        
    }

    /**
     * {@inheritDoc}
     * 
     * Note: The PRIMARY is identical to the as-configured {@link IKeyBuilder}
     * for ASCII.
     */
    @Override
    public IKeyBuilder getPrimaryKeyBuilder() {

        return getKeyBuilder();
        
    }

    @Override
    public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {

        initialCapacity = in.readInt();
        
    }

    @Override
    public void writeExternal(final ObjectOutput out) throws IOException {
       
        out.writeInt(initialCapacity);
        
    }

}