org.apache.cassandra.db.columniterator
Class LazyColumnIterator

java.lang.Object
  com.google.common.collect.UnmodifiableIterator<T>
      com.google.common.collect.AbstractIterator<IColumn>
          org.apache.cassandra.db.columniterator.LazyColumnIterator

All Implemented Interfaces:

java.io.Closeable, java.util.Iterator<IColumn>, IColumnIterator, CloseableIterator<IColumn>

public class LazyColumnIterator
extends com.google.common.collect.AbstractIterator<IColumn>
implements IColumnIterator

Constructor Summary

LazyColumnIterator(DecoratedKey key, IColumnIteratorFactory subIteratorFactory)

Method Summary

void	close() clean up any open resources
protected IColumn	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

Constructor Detail

LazyColumnIterator

public LazyColumnIterator(DecoratedKey key,
                          IColumnIteratorFactory subIteratorFactory)

Method Detail

computeNext

protected IColumn computeNext()

Specified by:

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

getColumnFamily

public ColumnFamily getColumnFamily()

Specified by:

getColumnFamily in interface IColumnIterator

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 IColumnIterator

Returns:

the current row key

close

public void close()
           throws java.io.IOException

Description copied from interface: IColumnIterator

clean up any open resources

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface IColumnIterator

Throws:

java.io.IOException