IntArrayCachedObject.java

/* Copyright (c) 2001-2011, The HSQL Development Group
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package org.hsqldb.persist;

import java.io.IOException;

import org.hsqldb.error.Error;
import org.hsqldb.error.ErrorCode;
import org.hsqldb.lib.LongLookup;
import org.hsqldb.rowio.RowInputInterface;
import org.hsqldb.rowio.RowOutputInterface;

/**
 * @author Fred Toussi (fredt@users dot sourceforge.net)
 * @version 2.3.0
 * @since 2.3.0
 */
public class IntArrayCachedObject extends CachedObjectBase {

    public final static int fileSizeFactor = 4;

    //
    int[] values;

    public IntArrayCachedObject(int capacity) {
        this.values = new int[capacity];
        hasChanged  = true;
    }

    public CachedObject newInstance(int size) {
        return new IntArrayCachedObject(size);
    }

    public void read(RowInputInterface in) {

        this.position = in.getPos();

        int capacity = values.length;

        try {
            for (int i = 0; i < capacity; i++) {
                values[i] = in.readInt();
            }
        } catch (IOException e) {
            throw Error.error(ErrorCode.GENERAL_IO_ERROR, e);
        }

        hasChanged = false;
    }

    public int getDefaultCapacity() {
        return values.length;
    }

    public int getRealSize(RowOutputInterface out) {
        return values.length * PersistentStore.INT_STORE_SIZE;
    }

    public void write(RowOutputInterface out) {

        int capacity = values.length;

        for (int i = 0; i < capacity; i++) {
            out.writeInt(values[i]);
        }

        out.writeEnd();

        hasChanged = false;
    }

    public void write(RowOutputInterface out, LongLookup lookup) {
        write(out);
    }

    public int[] getIntArray() {
        return values;
    }
}