vishnu.model.algebra
Class ConjunctiveSelection

java.lang.Object
  vishnu.model.algebra.AbstractUnaryRelation
      vishnu.model.algebra.ConjunctiveSelection

All Implemented Interfaces:

java.lang.Cloneable, Relation, Selection, UnaryRelation

public class ConjunctiveSelection
extends AbstractUnaryRelation
implements Selection

Author:

Hernan Rancati

Nested Class Summary

Nested classes/interfaces inherited from interface vishnu.model.algebra.Relation

Relation.Context, Relation.ContextNotSelectedException

Field Summary

Fields inherited from class vishnu.model.algebra.AbstractUnaryRelation

algorithm

Constructor Summary

ConjunctiveSelection(Relation r, java.util.Collection<SQLOperand> conjunctions)

ConjunctiveSelection(Relation r, SQLConditionalExpression c)

Method Summary

TableSignature	calculateSignature()
java.lang.Object	clone() Clona la relacion.
SQLConditionalExpression	conditions()
java.util.Collection<SQLOperand>	conjunctions()
void	conjunctions(java.util.Collection<SQLOperand> conjunctions)
boolean	equals(java.lang.Object o)
int	hashCode()
java.lang.String	toString()

Methods inherited from class vishnu.model.algebra.AbstractUnaryRelation

algorithm, algorithm, hasChanged, perform, relation, relation, setChanged, setContext, signature

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface vishnu.model.algebra.UnaryRelation

relation, relation

Methods inherited from interface vishnu.model.algebra.Relation

algorithm, algorithm, hasChanged, perform, setChanged, setContext, signature

Constructor Detail

ConjunctiveSelection

public ConjunctiveSelection(Relation r,
                            SQLConditionalExpression c)

ConjunctiveSelection

public ConjunctiveSelection(Relation r,
                            java.util.Collection<SQLOperand> conjunctions)

Method Detail

conjunctions

public java.util.Collection<SQLOperand> conjunctions()

conditions

public SQLConditionalExpression conditions()

Specified by:

conditions in interface Selection

conjunctions

public void conjunctions(java.util.Collection<SQLOperand> conjunctions)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

clone

public java.lang.Object clone()

Description copied from interface: UnaryRelation

Clona la relacion.

Specified by:

clone in interface UnaryRelation

Specified by:

clone in class AbstractUnaryRelation

calculateSignature

public TableSignature calculateSignature()

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object