/*
* 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.hops.cost;
public class VarStats
{
long _rlen = -1;
long _clen = -1;
long _brlen = -1;
long _bclen = -1;
double _nnz = -1;
boolean _inmem = false;
public VarStats( long rlen, long clen, long brlen, long bclen, long nnz, boolean inmem )
{
_rlen = rlen;
_clen = clen;
_brlen = brlen;
_bclen = bclen;
_nnz = nnz;
_inmem = inmem;
}
public double getSparsity()
{
return (_nnz<0) ? 1.0 : (double)_nnz/_rlen/_clen;
}
@Override
public String toString()
{
StringBuilder sb = new StringBuilder();
sb.append("VarStats: [");
sb.append("rlen = ");
sb.append(_rlen);
sb.append(", clen = ");
sb.append(_clen);
sb.append(", nnz = ");
sb.append(_nnz);
sb.append(", inmem = ");
sb.append(_inmem);
sb.append("]");
return sb.toString();
}
@Override
public Object clone()
{
return new VarStats(_rlen, _clen, _brlen, _bclen,(long)_nnz, _inmem );
}
}