/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */


package org.apache.sysml.runtime.matrix;

public class MatrixDimensionsMetaData extends MetaData 
{
	protected MatrixCharacteristics matchar;
	
	public MatrixDimensionsMetaData() {
		matchar = null;
	}
	
	public MatrixDimensionsMetaData(MatrixCharacteristics mc) {
		matchar = mc;
	}
	
	public MatrixCharacteristics getMatrixCharacteristics() {
		return matchar;
	}
	
	public void setMatrixCharacteristics(MatrixCharacteristics mc) {
		matchar = mc;
	}
	
	@Override
	public boolean equals (Object anObject)
	{
		if (anObject instanceof MatrixDimensionsMetaData)
		{
			MatrixDimensionsMetaData md = (MatrixDimensionsMetaData) anObject;
			return (matchar.equals (md.matchar));
		}
		else
			return false;
	}
	
	@Override
	public int hashCode()
	{
		//use identity hash code
		return super.hashCode();
	}

	@Override
	public String toString() {
		return "[rows = " + matchar.getRows() + 
			   ", cols = " + matchar.getCols() + 
			   ", rpb = " + matchar.getRowsPerBlock() + 
			   ", cpb = " + matchar.getColsPerBlock() + "]"; 
	}
	
	@Override
	public Object clone()
	{
		MatrixCharacteristics mc = new MatrixCharacteristics(matchar);
		MatrixDimensionsMetaData ret = new MatrixDimensionsMetaData(mc);
		
		return ret;
	}
}