org.apache.cassandra.db.columniterator

Class LazyColumnIterator

java.lang.Object

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

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

org.apache.cassandra.db.columniterator.LazyColumnIterator

All Implemented Interfaces:

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

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

Constructor Summary

Constructors

Constructor and Description
LazyColumnIterator(DecoratedKey key, IColumnIteratorFactory subIteratorFactory)

Method Summary

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

forEachRemaining, hasNext, next, remove

Constructor Detail

LazyColumnIterator

public LazyColumnIterator(DecoratedKey key,
                          IColumnIteratorFactory subIteratorFactory)

Method Detail

computeNext

protected OnDiskAtom computeNext()

Specified by:

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

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.

getKey

public DecoratedKey getKey()

Specified by:

getKey in interface OnDiskAtomIterator

Returns:

the current row key

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