/*******************************************************************************
* Copyright 2014 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.model.domains;
import org.eclipse.jdt.annotation.Nullable;
import com.analog.lyric.dimple.model.values.Value;
import net.jcip.annotations.Immutable;
/**
* Non-discrete integral domain.
* <p>
* NOTE: currently there is no random variable type that corresponds to this domain.
*
* @since 0.05
*/
@Immutable
public class IntDomain extends Domain
{
/*-------
* State
*/
private static final long serialVersionUID = 1L;
private static final IntDomain UNBOUNDED = new IntDomain();
// Currently no support for bounds, since you can usually use IntRangeDomain for that.
/*--------------
* Construction
*/
private IntDomain()
{
super(14237);
}
public static IntDomain unbounded()
{
return UNBOUNDED;
}
@Override
protected IntDomain intern()
{
return unbounded();
}
/*----------------
* Object methods
*/
@Override
public boolean equals(@Nullable Object other)
{
return this == other || other instanceof IntDomain;
}
/*----------------
* Domain methods
*/
@Override
public final boolean hasIntCompatibleValues()
{
return true;
}
@Override
public final boolean isIntegral()
{
return true;
}
@Override
public boolean inDomain(@Nullable Object value)
{
if (value instanceof Number)
{
Number number = (Number)value;
return number.intValue() == number.doubleValue();
}
return false;
}
@Override
public boolean valueInDomain(Value value)
{
return value.getDomain().isIntegral() || inDomain(value.getObject());
}
}