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Merge pull request #22 from Wikidata/datamodel-general-update
Datamodel general update
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wdtk-datamodel/src/main/java/org/wikidata/wdtk/datamodel/implementation/ClaimImpl.java
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| package org.wikidata.wdtk.datamodel.implementation; | ||
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| /* | ||
| * #%L | ||
| * Wikidata Toolkit Data Model | ||
| * %% | ||
| * Copyright (C) 2014 Wikidata Toolkit Developers | ||
| * %% | ||
| * 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. | ||
| * #L% | ||
| */ | ||
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| import java.util.Collections; | ||
| import java.util.List; | ||
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| import org.apache.commons.lang3.Validate; | ||
| import org.apache.commons.lang3.builder.HashCodeBuilder; | ||
| import org.wikidata.wdtk.datamodel.interfaces.Claim; | ||
| import org.wikidata.wdtk.datamodel.interfaces.EntityIdValue; | ||
| import org.wikidata.wdtk.datamodel.interfaces.Snak; | ||
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| /** | ||
| * Implementation of {@link Claim}. | ||
| * | ||
| * @author Markus Kroetzsch | ||
| * | ||
| */ | ||
| public class ClaimImpl implements Claim { | ||
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| final EntityIdValue subject; | ||
| final Snak mainSnak; | ||
| final List<? extends Snak> qualifiers; | ||
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| /** | ||
| * Constructor. | ||
| * | ||
| * @param subject | ||
| * the subject the Claim refers to | ||
| * @param mainSnak | ||
| * the main Snak of the Claim | ||
| * @param qualifiers | ||
| * the qualifiers of the Claim | ||
| */ | ||
| ClaimImpl(EntityIdValue subject, Snak mainSnak, | ||
| List<? extends Snak> qualifiers) { | ||
| Validate.notNull(subject, "Statement subjects cannot be null"); | ||
| Validate.notNull(mainSnak, "Statement main Snaks cannot be null"); | ||
| Validate.notNull(qualifiers, "Statement qualifiers cannot be null"); | ||
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| this.subject = subject; | ||
| this.mainSnak = mainSnak; | ||
| this.qualifiers = qualifiers; | ||
| } | ||
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| @Override | ||
| public EntityIdValue getSubject() { | ||
| return subject; | ||
| } | ||
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| @Override | ||
| public Snak getMainSnak() { | ||
| return mainSnak; | ||
| } | ||
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| @Override | ||
| public List<? extends Snak> getQualifiers() { | ||
| return Collections.unmodifiableList(qualifiers); | ||
| } | ||
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| /* | ||
| * (non-Javadoc) | ||
| * | ||
| * @see java.lang.Object#hashCode() | ||
| */ | ||
| @Override | ||
| public int hashCode() { | ||
| return new HashCodeBuilder(31, 569).append(this.subject) | ||
| .append(this.mainSnak).append(this.qualifiers).toHashCode(); | ||
| } | ||
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| /* | ||
| * (non-Javadoc) | ||
| * | ||
| * @see java.lang.Object#equals(java.lang.Object) | ||
| */ | ||
| @Override | ||
| public boolean equals(Object obj) { | ||
| if (this == obj) { | ||
| return true; | ||
| } | ||
| if (!(obj instanceof ClaimImpl)) { | ||
| return false; | ||
| } | ||
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| ClaimImpl other = (ClaimImpl) obj; | ||
| return this.subject.equals(other.subject) | ||
| && this.mainSnak.equals(other.mainSnak) | ||
| && this.qualifiers.equals(other.qualifiers); | ||
| } | ||
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| } |
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