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// Copyright Yahoo. 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;
import java.util.Objects;
/**
* 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 IndexedSegmentItem extends TaggableSegmentItem implements IndexedItem {
private String index = "";
protected IndexedSegmentItem(String rawWord, String current, boolean isFromQuery, boolean stemmed, Substring origin) {
super(rawWord, current, isFromQuery, stemmed, origin);
}
/**
* The name of the index this belongs to, or "" (never null) if not specified
*/
public String getIndexName() {
return index;
}
// encode index bytes
@Override
protected void encodeThis(ByteBuffer buffer) {
super.encodeThis(buffer);
putString(index, buffer);
}
/** Sets the name of the index to search */
@Override
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;
if ( ! this.index.equals(other.getIndexName())) return false;
return true;
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), index);
}
public abstract String getIndexedString();
@Override
public void disclose(Discloser discloser) {
super.disclose(discloser);
discloser.addProperty("index", index);
}
}
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