org.apache.cassandra.db.columniterator

Class SSTableNamesIterator

java.lang.Object

com.google.common.collect.UnmodifiableIterator<T>

com.google.common.collect.AbstractIterator<OnDiskAtom>

org.apache.cassandra.db.columniterator.SSTableNamesIterator

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, java.util.Iterator<OnDiskAtom>, OnDiskAtomIterator, CloseableIterator<OnDiskAtom>

public class SSTableNamesIterator
extends com.google.common.collect.AbstractIterator<OnDiskAtom>
implements OnDiskAtomIterator

Field Summary

Fields

Modifier and Type	Field and Description
java.util.SortedSet<java.nio.ByteBuffer>	columns
DecoratedKey	key

Constructor Summary

Constructors

Constructor and Description
SSTableNamesIterator(SSTableReader sstable, DecoratedKey key, java.util.SortedSet<java.nio.ByteBuffer> columns)
SSTableNamesIterator(SSTableReader sstable, FileDataInput file, DecoratedKey key, java.util.SortedSet<java.nio.ByteBuffer> columns, RowIndexEntry indexEntry)

Method Summary

Methods

Modifier and Type	Method and Description
void	close() clean up any open resources
protected OnDiskAtom	computeNext()
ColumnFamily	getColumnFamily()
DecoratedKey	getKey()

Methods inherited from class com.google.common.collect.AbstractIterator

endOfData, hasNext, next, peek

Methods inherited from class com.google.common.collect.UnmodifiableIterator

remove

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Field Detail

columns

public final java.util.SortedSet<java.nio.ByteBuffer> columns

key

public final DecoratedKey key

Constructor Detail

SSTableNamesIterator

public SSTableNamesIterator(SSTableReader sstable,
                    DecoratedKey key,
                    java.util.SortedSet<java.nio.ByteBuffer> columns)

SSTableNamesIterator

public SSTableNamesIterator(SSTableReader sstable,
                    FileDataInput file,
                    DecoratedKey key,
                    java.util.SortedSet<java.nio.ByteBuffer> columns,
                    RowIndexEntry indexEntry)

Method Detail

getKey

public DecoratedKey getKey()

Specified by:

getKey in interface OnDiskAtomIterator

Returns:

the current row key

getColumnFamily

public ColumnFamily getColumnFamily()

Specified by:

getColumnFamily in interface OnDiskAtomIterator

Returns:

A ColumnFamily holding metadata for the row being iterated. Do not modify this CF. Whether it is empty or not is implementation-dependent.

computeNext

protected OnDiskAtom computeNext()

Specified by:

computeNext in class com.google.common.collect.AbstractIterator<OnDiskAtom>

close

public void close()
           throws java.io.IOException

Description copied from interface: OnDiskAtomIterator

clean up any open resources

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface OnDiskAtomIterator

Throws:

java.io.IOException