Package org.apache.cassandra.index.sai.disk.v1.bbtree

Class BlockBalancedTreeWalker

java.lang.Object

org.apache.cassandra.index.sai.disk.v1.bbtree.BlockBalancedTreeWalker

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

BlockBalancedTreeReader

public class BlockBalancedTreeWalker
extends Object
implements Closeable

Base reader for a block balanced tree previously written with BlockBalancedTreeWriter.

Holds the index tree on heap and enables its traversal via traverse(TraversalCallback).

Constructor Summary

Constructors

Constructor	Description
BlockBalancedTreeWalker(org.apache.lucene.store.DataInput indexInput, long treeIndexRoot)

Method Summary

Modifier and Type	Method	Description
void	close()
long	memoryUsage()
org.apache.cassandra.index.sai.disk.v1.bbtree.BlockBalancedTreeWalker.TraversalState	newTraversalState()

Methods inherited from class java.lang.Object

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

Constructor Details

BlockBalancedTreeWalker

public BlockBalancedTreeWalker(org.apache.lucene.store.DataInput indexInput,
 long treeIndexRoot)
                        throws IOException

Throws:

IOException

Method Details

memoryUsage

public long memoryUsage()

newTraversalState

public org.apache.cassandra.index.sai.disk.v1.bbtree.BlockBalancedTreeWalker.TraversalState newTraversalState()

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable