Package org.apache.cassandra.cql3.selection

Class SimpleSelector

java.lang.Object

org.apache.cassandra.cql3.selection.Selector

org.apache.cassandra.cql3.selection.SimpleSelector

public final class SimpleSelector
extends Selector

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SimpleSelector.SimpleSelectorFactory	The Factory for SimpleSelector.

Nested classes/interfaces inherited from class org.apache.cassandra.cql3.selection.Selector

Selector.Factory

Field Summary

Fields

Modifier and Type	Field	Description
ColumnMetadata	column

Method Summary

Modifier and Type	Method	Description
void	addFetchedColumns(ColumnFilter.Builder builder)	Add to the provided builder the column (and potential subselections) to fetch for this selection.
void	addInput(ProtocolVersion protocolVersion, ResultSetBuilder rs)	Add the current value from the specified ResultSetBuilder.
java.nio.ByteBuffer	getOutput(ProtocolVersion protocolVersion)	Returns the selector output.
AbstractType<?>	getType()	Returns the Selector output type.
static Selector.Factory	newFactory(ColumnMetadata def, int idx)
void	reset()	Reset the internal state of this Selector.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

column

public final ColumnMetadata column

Method Detail

newFactory

public static Selector.Factory newFactory(ColumnMetadata def,
                                          int idx)

addFetchedColumns

public void addFetchedColumns(ColumnFilter.Builder builder)

Description copied from class: Selector

Add to the provided builder the column (and potential subselections) to fetch for this selection.

Specified by:

addFetchedColumns in class Selector

Parameters:

builder - the builder to add columns and subselections to.

addInput

public void addInput(ProtocolVersion protocolVersion,
                     ResultSetBuilder rs)
              throws InvalidRequestException

Description copied from class: Selector

Add the current value from the specified ResultSetBuilder.

Specified by:

addInput in class Selector

Parameters:

protocolVersion - protocol version used for serialization

rs - the ResultSetBuilder

Throws:

InvalidRequestException - if a problem occurs while add the input value

getOutput

public java.nio.ByteBuffer getOutput(ProtocolVersion protocolVersion)
                              throws InvalidRequestException

Description copied from class: Selector

Returns the selector output.

Specified by:

getOutput in class Selector

Parameters:

protocolVersion - protocol version used for serialization

Returns:

the selector output

Throws:

InvalidRequestException - if a problem occurs while computing the output value

reset

public void reset()

Description copied from class: Selector

Reset the internal state of this Selector.

Specified by:

reset in class Selector

getType

public AbstractType<?> getType()

Description copied from class: Selector

Returns the Selector output type.

Specified by:

getType in class Selector

Returns:

the Selector output type.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object