/*******************************************************************************
* Copyright 2015 Analog Devices, Inc.
*
* Licensed 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 com.analog.lyric.dimple.data;
import com.analog.lyric.dimple.data.FactorGraphData.Constructor;
import com.analog.lyric.dimple.model.core.FactorGraph;
import com.analog.lyric.dimple.model.values.Value;
import com.analog.lyric.dimple.model.variables.Variable;
/**
* A dense {@link DataLayerBase} that can only contain {@link Value} objects.
* <p>
* Can be used to represent samples, MAP assignments, conditioning, and for computing
* likelihood of given assignment.
* <p>
* @since 0.08
* @author Christopher Barber
*/
public class ValueDataLayer extends DataLayer<Value>
{
/*--------------
* Construction
*/
public ValueDataLayer(FactorGraph graph, Constructor<Variable,Value> constructor)
{
super(graph, constructor);
}
public ValueDataLayer(FactorGraph graph, DataDensity density)
{
super(graph, density, Value.class);
}
public ValueDataLayer(FactorGraph graph)
{
this(graph, DataDensity.DENSE);
}
protected ValueDataLayer(ValueDataLayer other)
{
super(other);
}
@Override
public ValueDataLayer clone()
{
return new ValueDataLayer(this);
}
public static ValueDataLayer dense(FactorGraph graph)
{
return new ValueDataLayer(graph, DenseFactorGraphData.constructorForType(Variable.class, Value.class));
}
public static ValueDataLayer sparse(FactorGraph graph)
{
return new ValueDataLayer(graph, SparseFactorGraphData.constructorForType(Variable.class, Value.class));
}
/*-------------------
* DataLayer methods
*/
@Override
public final boolean allowsValues()
{
return true;
}
}