MtasSpanAndQuery.java
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package mtas.search.spans;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.lucene.search.spans.SpanNearQuery;
import org.apache.lucene.search.spans.SpanQuery;
/**
* The Class MtasSpanAndQuery.
*/
public class MtasSpanAndQuery extends SpanNearQuery {
/** The clauses. */
private List<SpanQuery> clauses;
/** The query name. */
private static String QUERY_NAME = "mtasSpanAndQuery";
/**
* Instantiates a new mtas span and query.
*
* @param clauses the clauses
*/
public MtasSpanAndQuery(SpanQuery... clauses) {
super(clauses, -1 * (clauses.length - 1), false);
this.clauses = new ArrayList<>(clauses.length);
for (SpanQuery clause : clauses) {
this.clauses.add(clause);
}
}
/* (non-Javadoc)
* @see org.apache.lucene.search.spans.SpanNearQuery#toString(java.lang.String)
*/
@Override
public String toString(String field) {
StringBuilder buffer = new StringBuilder();
buffer.append(QUERY_NAME + "([");
Iterator<SpanQuery> i = clauses.iterator();
while (i.hasNext()) {
SpanQuery clause = i.next();
buffer.append(clause.toString(field));
if (i.hasNext()) {
buffer.append(", ");
}
}
buffer.append("])");
return buffer.toString();
}
/* (non-Javadoc)
* @see org.apache.lucene.search.spans.SpanNearQuery#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj== null)
return false;
if (getClass() != obj.getClass())
return false;
final MtasSpanAndQuery that = (MtasSpanAndQuery) obj;
return clauses.equals(that.clauses);
}
/* (non-Javadoc)
* @see org.apache.lucene.search.spans.SpanNearQuery#hashCode()
*/
@Override
public int hashCode() {
int h = QUERY_NAME.hashCode();
h = (h * 7) ^ super.hashCode();
return h;
}
}