org.apache.cassandra.cql
Class Relation

java.lang.Object
  org.apache.cassandra.cql.Relation

public class Relation
extends java.lang.Object

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

Constructor Summary

Relation(Term entity, java.lang.String type, Term value)
Creates a new relation.

Method Summary

Term	getEntity()
Term	getValue()
boolean	isColumn()
boolean	isKey()
org.apache.cassandra.cql.RelationType	operator()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Relation

public Relation(Term entity,
                java.lang.String type,
                Term 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.

Method Detail

isKey

public boolean isKey()

isColumn

public boolean isColumn()

operator

public org.apache.cassandra.cql.RelationType operator()

getEntity

public Term getEntity()

getValue

public Term getValue()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object