53 lines
729 B
Java
53 lines
729 B
Java
package it.cavallium.dbengine.lucene;
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import java.util.stream.Stream;
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public class EmptyPriorityQueue<T> implements PriorityQueue<T> {
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@Override
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public void add(T element) {
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throw new UnsupportedOperationException();
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}
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@Override
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public T top() {
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return null;
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}
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@Override
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public T pop() {
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return null;
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}
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@Override
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public void replaceTop(T oldTop, T newTop) {
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assert oldTop == null;
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assert newTop == null;
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}
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@Override
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public long size() {
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return 0;
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}
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@Override
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public void clear() {
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}
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@Override
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public boolean remove(T element) {
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throw new UnsupportedOperationException();
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}
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@Override
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public Stream<T> iterate() {
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return Stream.empty();
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}
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@Override
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public void close() {
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}
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}
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