org.apache.cassandra.cql3

Class Term.Terminal

java.lang.Object

org.apache.cassandra.cql3.Term.Terminal

All Implemented Interfaces:

Term

Direct Known Subclasses:

Constants.Value, Maps.Value, Sets.Value, Term.MultiItemTerminal, Tuples.InValue

Enclosing interface:

Term

public abstract static class Term.Terminal
extends java.lang.Object
implements Term

A terminal term, one that can be reduced to a byte buffer directly. This includes most terms that don't have a bind marker (an exception being delayed call for non pure function that are NonTerminal even if they don't have bind markers). This can be only one of: - a constant value - a collection value Note that a terminal term will always have been type checked, and thus consumer can (and should) assume so.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.cassandra.cql3.Term

Term.MultiColumnRaw, Term.MultiItemTerminal, Term.NonTerminal, Term.Raw, Term.Terminal

Constructor Summary

Constructors

Constructor and Description
Terminal()

Method Summary

Modifier and Type	Method and Description
void	addFunctionsTo(java.util.List<Function> functions)
Term.Terminal	bind(QueryOptions options) Bind the values in this term to the values contained in values.
java.nio.ByteBuffer	bindAndGet(QueryOptions options) A shorter for bind(values).get().
void	collectMarkerSpecification(VariableSpecifications boundNames) Collects the column specification for the bind variables in this Term.
boolean	containsBindMarker() Whether or not that term contains at least one bind marker.
abstract java.nio.ByteBuffer	get(int protocolVersion)

Methods inherited from class java.lang.Object

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

Constructor Detail

Terminal

public Terminal()

Method Detail

collectMarkerSpecification

public void collectMarkerSpecification(VariableSpecifications boundNames)

Description copied from interface: Term

Collects the column specification for the bind variables in this Term. This is obviously a no-op if the term is Terminal.

Specified by:

collectMarkerSpecification in interface Term

Parameters:

boundNames - the variables specification where to collect the bind variables of this term in.

bind

public Term.Terminal bind(QueryOptions options)

Description copied from interface: Term

Bind the values in this term to the values contained in values. This is obviously a no-op if the term is Terminal.

Specified by:

bind in interface Term

Parameters:

options - the values to bind markers to.

Returns:

the result of binding all the variables of this NonTerminal (or 'this' if the term is terminal).

addFunctionsTo

public void addFunctionsTo(java.util.List<Function> functions)

Specified by:

addFunctionsTo in interface Term

containsBindMarker

public boolean containsBindMarker()

Description copied from interface: Term

Whether or not that term contains at least one bind marker. Note that this is slightly different from being or not a NonTerminal, because calls to non pure functions will be NonTerminal (see #5616) even if they don't have bind markers.

Specified by:

containsBindMarker in interface Term

get

public abstract java.nio.ByteBuffer get(int protocolVersion)
                                 throws InvalidRequestException

Parameters:

protocolVersion -

Returns:

the serialized value of this terminal.

Throws:

InvalidRequestException

bindAndGet

public java.nio.ByteBuffer bindAndGet(QueryOptions options)
                               throws InvalidRequestException

Description copied from interface: Term

A shorter for bind(values).get(). We expose it mainly because for constants it can avoids allocating a temporary object between the bind and the get (note that we still want to be able to separate bind and get for collections).

Specified by:

bindAndGet in interface Term

Throws:

InvalidRequestException