/**
* Copyright 2004-2016 Riccardo Solmi. All rights reserved.
* This file is part of the Whole Platform.
*
* The Whole Platform is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Whole Platform is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whole.lang.comparators;
import java.util.Comparator;
import org.whole.lang.bindings.IBindingManager;
import org.whole.lang.model.IEntity;
import org.whole.lang.operations.CloneContext;
import org.whole.lang.operations.ICloneContext;
/**
* @author Riccardo Solmi
*/
public class ComparatorAdapter<T extends IEntity> implements IEntityComparator<T> {
protected Comparator<T> comparator;
public ComparatorAdapter(Comparator<T> comparator) {
this.comparator = comparator;
}
public IEntityComparator<T> clone() {
return clone(new CloneContext());
}
@SuppressWarnings("unchecked")
public IEntityComparator<T> clone(ICloneContext cc) {
try {
ComparatorAdapter<T> comparator = (ComparatorAdapter<T>) super.clone();
cc.putClone(this, comparator);
return comparator;
} catch (CloneNotSupportedException e) {
throw new InternalError();
}
}
public void setBindings(IBindingManager bm) {
}
public boolean canOrder() {
return true;
}
public int compare(T o1, T o2) {
return comparator.compare(o1, o2);
}
public boolean equals(T o1, T o2) {
try {
return compare(o1, o2) == 0;
} catch (Exception e) {
return false;
}
}
@SuppressWarnings("unchecked")
public boolean contains(IEntity container, T e) {
for (int i=0, size=container.wSize(); i<size; i++)
if (equals((T) container.wGet(i), e))
return true;
return false;
}
@SuppressWarnings("unchecked")
public IEntity get(IEntity container, T e) {
for (int i=0, size=container.wSize(); i<size; i++) {
T e0 = (T) container.wGet(i);
if (equals(e0, e))
return e0;
}
return null;
}
}