49 lines
1.2 KiB
Java
49 lines
1.2 KiB
Java
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/**
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* Copyright (C) 2015 Typesafe Inc. <http://www.typesafe.com>
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*/
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package docs.ddata.japi;
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import java.util.HashSet;
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import java.util.Set;
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import akka.cluster.ddata.AbstractReplicatedData;
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import akka.cluster.ddata.GSet;
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//#twophaseset
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public class TwoPhaseSet extends AbstractReplicatedData<TwoPhaseSet> {
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public final GSet<String> adds;
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public final GSet<String> removals;
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public TwoPhaseSet(GSet<String> adds, GSet<String> removals) {
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this.adds = adds;
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this.removals = removals;
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}
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public static TwoPhaseSet create() {
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return new TwoPhaseSet(GSet.create(), GSet.create());
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}
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public TwoPhaseSet add(String element) {
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return new TwoPhaseSet(adds.add(element), removals);
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}
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public TwoPhaseSet remove(String element) {
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return new TwoPhaseSet(adds, removals.add(element));
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}
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public Set<String> getElements() {
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Set<String> result = new HashSet<>(adds.getElements());
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result.removeAll(removals.getElements());
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return result;
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}
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@Override
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public TwoPhaseSet mergeData(TwoPhaseSet that) {
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return new TwoPhaseSet(this.adds.merge(that.adds),
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this.removals.merge(that.removals));
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}
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}
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//#twophaseset
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