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change underlying implementation of the fixedsizesortedset to priority queue

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Athou
2013-07-24 17:28:10 +02:00
parent 7316a6e07d
commit 1a720e6a29
1 changed files with 7 additions and 18 deletions
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25
src/main/java/com/commafeed/backend/FixedSizeSortedSet.java
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@@ -1,15 +1,13 @@
package com.commafeed.backend; package com.commafeed.backend;
import java.util.Collection;
import java.util.Comparator; import java.util.Comparator;
import java.util.List; import java.util.List;
import java.util.TreeSet; import java.util.PriorityQueue;
import org.apache.commons.collections.CollectionUtils;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists; import com.google.common.collect.Lists;
public class FixedSizeSortedSet<E> extends TreeSet<E> { public class FixedSizeSortedSet<E> extends PriorityQueue<E> {
private static final long serialVersionUID = 1L; private static final long serialVersionUID = 1L;
@@ -17,7 +15,7 @@ public class FixedSizeSortedSet<E> extends TreeSet<E> {
private final int maxSize; private final int maxSize;
public FixedSizeSortedSet(int maxSize, Comparator<? super E> comparator) { public FixedSizeSortedSet(int maxSize, Comparator<? super E> comparator) {
super(comparator); super(maxSize, comparator);
this.maxSize = maxSize; this.maxSize = maxSize;
this.comparator = comparator; this.comparator = comparator;
} }
@@ -38,19 +36,10 @@ public class FixedSizeSortedSet<E> extends TreeSet<E> {
} }
} }
@Override public E last() {
public boolean addAll(Collection<? extends E> c) { return Iterables.getLast(this);
if (CollectionUtils.isEmpty(c)) {
return false;
}
boolean success = true;
for (E e : c) {
success &= add(e);
}
return success;
} }
public boolean isFull() { public boolean isFull() {
return size() == maxSize; return size() == maxSize;
} }