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java.lang.Objectorg.apache.cassandra.db.filter.SliceQueryFilter
public class SliceQueryFilter
Nested Class Summary | |
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static class |
SliceQueryFilter.Serializer
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Field Summary | |
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int |
count
|
boolean |
reversed
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static SliceQueryFilter.Serializer |
serializer
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ColumnSlice[] |
slices
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Constructor Summary | |
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SliceQueryFilter(java.nio.ByteBuffer start,
java.nio.ByteBuffer finish,
boolean reversed,
int count)
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SliceQueryFilter(ColumnSlice[] slices,
boolean reversed,
int count)
Constructor that accepts multiple slices. |
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SliceQueryFilter(ColumnSlice[] slices,
boolean reversed,
int count,
int compositesToGroup,
int countMutliplierForCompatibility)
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Method Summary | |
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void |
collectReducedColumns(IColumnContainer container,
java.util.Iterator<IColumn> reducedColumns,
int gcBefore)
collects columns from reducedColumns into returnCF. |
SuperColumn |
filterSuperColumn(SuperColumn superColumn,
int gcBefore)
subcolumns of a supercolumn are unindexed, so to pick out parts of those we operate in-memory. |
java.nio.ByteBuffer |
finish()
|
java.util.Comparator<IColumn> |
getColumnComparator(AbstractType<?> comparator)
|
OnDiskAtomIterator |
getMemtableColumnIterator(ColumnFamily cf,
DecoratedKey key)
returns an iterator that returns columns from the given memtable matching the Filter criteria in sorted order. |
ISSTableColumnIterator |
getSSTableColumnIterator(SSTableReader sstable,
DecoratedKey key)
returns an iterator that returns columns from the given SSTable matching the Filter criteria in sorted order. |
ISSTableColumnIterator |
getSSTableColumnIterator(SSTableReader sstable,
FileDataInput file,
DecoratedKey key,
RowIndexEntry indexEntry)
Get an iterator that returns columns from the given SSTable using the opened file matching the Filter criteria in sorted order. |
boolean |
includes(java.util.Comparator<java.nio.ByteBuffer> cmp,
java.nio.ByteBuffer name)
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boolean |
isReversed()
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int |
lastCounted()
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void |
setStart(java.nio.ByteBuffer start)
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java.nio.ByteBuffer |
start()
|
java.lang.String |
toString()
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void |
updateColumnsLimit(int newLimit)
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SliceQueryFilter |
withUpdatedCount(int newCount)
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final SliceQueryFilter.Serializer serializer
public final ColumnSlice[] slices
public final boolean reversed
public volatile int count
Constructor Detail |
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public SliceQueryFilter(java.nio.ByteBuffer start, java.nio.ByteBuffer finish, boolean reversed, int count)
public SliceQueryFilter(ColumnSlice[] slices, boolean reversed, int count)
public SliceQueryFilter(ColumnSlice[] slices, boolean reversed, int count, int compositesToGroup, int countMutliplierForCompatibility)
Method Detail |
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public SliceQueryFilter withUpdatedCount(int newCount)
public OnDiskAtomIterator getMemtableColumnIterator(ColumnFamily cf, DecoratedKey key)
IFilter
getMemtableColumnIterator
in interface IFilter
public ISSTableColumnIterator getSSTableColumnIterator(SSTableReader sstable, DecoratedKey key)
IFilter
getSSTableColumnIterator
in interface IFilter
public ISSTableColumnIterator getSSTableColumnIterator(SSTableReader sstable, FileDataInput file, DecoratedKey key, RowIndexEntry indexEntry)
IFilter
getSSTableColumnIterator
in interface IFilter
file
- Already opened file data input, saves us opening another onekey
- The key of the row we are about to iterate overpublic SuperColumn filterSuperColumn(SuperColumn superColumn, int gcBefore)
IFilter
filterSuperColumn
in interface IFilter
superColumn
- may be modified by filtering op.public java.util.Comparator<IColumn> getColumnComparator(AbstractType<?> comparator)
getColumnComparator
in interface IFilter
public void collectReducedColumns(IColumnContainer container, java.util.Iterator<IColumn> reducedColumns, int gcBefore)
IFilter
collectReducedColumns
in interface IFilter
public java.nio.ByteBuffer start()
public java.nio.ByteBuffer finish()
public void setStart(java.nio.ByteBuffer start)
public int lastCounted()
public java.lang.String toString()
toString
in class java.lang.Object
public boolean isReversed()
isReversed
in interface IFilter
public void updateColumnsLimit(int newLimit)
updateColumnsLimit
in interface IFilter
public boolean includes(java.util.Comparator<java.nio.ByteBuffer> cmp, java.nio.ByteBuffer name)
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