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/*
* Copyright 2000-2011 JetBrains s.r.o.
*
* 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.intellij.codeInsight.lookup;
import com.intellij.util.ProcessingContext;
import java.util.*;
/**
* @author peter
*/
public abstract class ClassifierFactory<T> {
private final String myId;
protected ClassifierFactory(String id) {
myId = id;
}
public String getId() {
return myId;
}
public abstract Classifier<T> createClassifier(Classifier<T> next);
public static <T> Classifier<T> listClassifier() {
return new Classifier<T>() {
@Override
public void addElement(T t) {
}
@Override
public Iterable<T> classify(Iterable<T> source, ProcessingContext context) {
return source;
}
@Override
public void describeItems(LinkedHashMap<T, StringBuilder> map, ProcessingContext context) {
}
};
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof ClassifierFactory)) return false;
ClassifierFactory that = (ClassifierFactory)o;
if (!myId.equals(that.myId)) return false;
return true;
}
@Override
public int hashCode() {
return myId.hashCode();
}
}
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