org.apache.cassandra.cql3.selection

Class TermSelector

java.lang.Object

org.apache.cassandra.cql3.selection.Selector

org.apache.cassandra.cql3.selection.TermSelector

public class TermSelector
extends Selector

Selector representing a simple term (literals or bound variables).

Note that we know the term does not include function calls for instance (this is actually enforced by the parser), those being dealt with by their own Selector.

Nested Class Summary

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

Selector.Factory

Method Summary

Modifier and Type	Method and 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(java.lang.String name, Term term, AbstractType<?> type)
void	reset() Reset the internal state of this Selector.

Methods inherited from class java.lang.Object

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

Method Detail

newFactory

public static Selector.Factory newFactory(java.lang.String name,
                                          Term term,
                                          AbstractType<?> type)

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

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.

reset

public void reset()

Description copied from class: Selector

Reset the internal state of this Selector.

Specified by:

reset in class Selector