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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.prelude.query;
import com.yahoo.prelude.query.textualrepresentation.Discloser;
import java.nio.ByteBuffer;
/**
* Common implementation for Item classes implementing the IndexedItem interface.
* Note that this file exist in 3 copies that should be kept in sync:
*
* CompositeIndexedItem.java
* SimpleIndexedItem.java
* IndexedSegmentItem.java
*
* These should only have trivial differences.
* (multiple inheritance or mixins would have been nice).
*
* @author arnej27959
*/
public abstract class CompositeIndexedItem extends CompositeTaggableItem implements IndexedItem {
private String index = "";
/** The name of the index this belongs to, or "" (never null) if not specified */
public String getIndexName() {
return index;
}
// encode index bytes
protected void encodeThis(ByteBuffer buffer) {
super.encodeThis(buffer);
putString(index, buffer);
}
/** Sets the name of the index to search */
public void setIndexName(String index) {
if (index == null)
index = "";
this.index = index;
}
/** Appends the index prefix if necessary */
protected void appendIndexString(StringBuilder buffer) {
if (!getIndexName().equals("")) {
buffer.append(getIndexName());
buffer.append(":");
}
}
@Override
public boolean equals(Object object) {
if (!super.equals(object)) return false;
IndexedItem other = (IndexedItem) object; // Ensured by superclass
if (!this.index.equals(other.getIndexName())) return false;
return true;
}
@Override
public int hashCode() {
return super.hashCode() + 31 * index.hashCode();
}
public abstract String getIndexedString();
@Override
public void disclose(Discloser discloser) {
super.disclose(discloser);
discloser.addProperty("index", index);
}
}
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