org.apache.jackrabbit.core.query.lucene

Class AbstractQueryHits

java.lang.Object

org.apache.jackrabbit.core.query.lucene.AbstractQueryHits

All Implemented Interfaces:

CloseableHits, QueryHits

Direct Known Subclasses:

ChildNodesQueryHits, DefaultQueryHits, NodeTraversingQueryHits, SortedLuceneQueryHits

public abstract class AbstractQueryHits
extends Object
implements QueryHits

AbstractQueryHits serves as a base class for QueryHits implementations.

Constructor Summary

Constructors

Constructor and Description
AbstractQueryHits()

Method Summary

Modifier and Type	Method and Description
void	close() This default implementation does nothing.
int	getSize() This default implementation returns -1.
void	skip(int n) Provides a default implementation:

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.jackrabbit.core.query.lucene.QueryHits

nextScoreNode

Constructor Detail

AbstractQueryHits

public AbstractQueryHits()

Method Detail

close

public void close()
           throws IOException

This default implementation does nothing.

Specified by:

close in interface CloseableHits

Throws:

IOException - if an error occurs while releasing resources.

skip

public void skip(int n)
          throws IOException

Provides a default implementation:

 while (n-- > 0) {
     if (nextScoreNode() == null) {
         return;
     }
 }
 

Sub classes may overwrite this method and implement are more efficient way to skip hits.

Specified by:

skip in interface CloseableHits

Parameters:

n - the number of hits to skip.

Throws:

IOException - if an error occurs while skipping.

getSize

public int getSize()

This default implementation returns -1.

Specified by:

getSize in interface CloseableHits

Returns:

-1.