org.apache.cassandra.cql3

Class Relation

java.lang.Object

org.apache.cassandra.cql3.Relation

public class Relation
extends java.lang.Object

Relations encapsulate the relationship between an entity of some kind, and a value (term). For example, > "start" or "colname1" = "somevalue".

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Relation.Type

Field Summary

Fields

Modifier and Type	Field and Description
boolean	onToken
ColumnIdentifier	previousInTuple

Constructor Summary

Constructors

Constructor and Description
Relation(ColumnIdentifier entity, Relation.Type type, Term.Raw value) Creates a new relation.
Relation(ColumnIdentifier entity, Relation.Type type, Term.Raw value, boolean onToken)
Relation(ColumnIdentifier entity, Relation.Type type, Term.Raw value, ColumnIdentifier previousInTuple)

Method Summary

Methods

Modifier and Type	Method and Description
void	addInValue(Term.Raw t)
static Relation	createInRelation(ColumnIdentifier entity)
ColumnIdentifier	getEntity()
java.util.List<Term.Raw>	getInValues()
Term.Raw	getValue()
Relation.Type	operator()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

onToken

public final boolean onToken

previousInTuple

public final ColumnIdentifier previousInTuple

Constructor Detail

Relation

public Relation(ColumnIdentifier entity,
        Relation.Type type,
        Term.Raw value)

Creates a new relation.

Parameters:

entity - the kind of relation this is; what the term is being compared to.

type - the type that describes how this entity relates to the value.

value - the value being compared.

Relation

public Relation(ColumnIdentifier entity,
        Relation.Type type,
        Term.Raw value,
        boolean onToken)

Relation

public Relation(ColumnIdentifier entity,
        Relation.Type type,
        Term.Raw value,
        ColumnIdentifier previousInTuple)

Method Detail

createInRelation

public static Relation createInRelation(ColumnIdentifier entity)

operator

public Relation.Type operator()

getEntity

public ColumnIdentifier getEntity()

getValue

public Term.Raw getValue()

getInValues

public java.util.List<Term.Raw> getInValues()

addInValue

public void addInValue(Term.Raw t)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object