org.apache.cassandra.db.composites

Interface Composite

All Superinterfaces:

IMeasurableMemory

All Known Subinterfaces:

CellName

All Known Implementing Classes:

AbstractComposite, AbstractNativeCell, BoundedComposite, CompoundComposite, CompoundDenseCellName, CompoundSparseCellName, CompoundSparseCellName.WithCollection, NativeCell, NativeCounterCell, NativeDeletedCell, NativeExpiringCell, SimpleComposite, SimpleDenseCellName, SimpleSparseCellName, SimpleSparseInternedCellName

public interface Composite
extends IMeasurableMemory

A composite value. This can be though as a list of ByteBuffer, except that this also include an 'end-of-component' flag, that allow precise selection of composite ranges. We also make a difference between "true" composites and the "simple" ones. The non-truly composite will have a size() == 1 but differs from true composites with size() == 1 in the way they are stored. Most code shouldn't have to care about the difference.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Composite.EOC

Method Summary

Methods

Modifier and Type	Method and Description
Composite	copy(CFMetaData cfm, AbstractAllocator allocator)
int	dataSize()
Composite	end()
Composite.EOC	eoc()
java.nio.ByteBuffer	get(int i)
boolean	isEmpty()
boolean	isPrefixOf(CType type, Composite other)
boolean	isStatic()
int	size()
ColumnSlice	slice()
Composite	start()
java.nio.ByteBuffer	toByteBuffer()
Composite	withEOC(Composite.EOC eoc)

Methods inherited from interface org.apache.cassandra.cache.IMeasurableMemory

unsharedHeapSize

Method Detail

size

int size()

isEmpty

boolean isEmpty()

get

java.nio.ByteBuffer get(int i)

eoc

Composite.EOC eoc()

withEOC

Composite withEOC(Composite.EOC eoc)

start

Composite start()

end

Composite end()

slice

ColumnSlice slice()

isStatic

boolean isStatic()

isPrefixOf

boolean isPrefixOf(CType type,
                 Composite other)

toByteBuffer

java.nio.ByteBuffer toByteBuffer()

dataSize

int dataSize()

copy

Composite copy(CFMetaData cfm,
             AbstractAllocator allocator)