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, LuceneQueryHits, NodeTraversingQueryHits

public abstract class AbstractQueryHits
extends java.lang.Object
implements QueryHits

AbstractQueryHits serves as a base class for QueryHits implementations.

Constructor Summary

AbstractQueryHits()

Method Summary

void	close() This default implemetation 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 java.io.IOException

This default implemetation does nothing.

Specified by:

close in interface CloseableHits

Throws:

java.io.IOException - if an error occurs while releasing resources.

skip

public void skip(int n)
          throws java.io.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:

java.io.IOException - if an error occurs while skipping.

getSize

public int getSize()

This default implementation returns -1.

Specified by:

getSize in interface CloseableHits

Returns:

-1.