com.metamatrix.query.sql.lang
Class PredicateCriteria

java.lang.Object
  com.metamatrix.query.sql.lang.Criteria
      com.metamatrix.query.sql.lang.PredicateCriteria

All Implemented Interfaces:

LanguageObject, java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

AbstractCompareCriteria, AbstractSetCriteria, BetweenCriteria, ExistsCriteria, HasCriteria, IsNullCriteria, MatchCriteria, TranslateCriteria

public abstract class PredicateCriteria
extends Criteria

This abstract class represents a predicate criteria, which involves some statement involving expressions and can be evaluated in the context of a single row of data to be either true or false.

Predicate criteria can be composed into more sophisticated criteria using "OR" and "AND" logical operators.

See Also:

Serialized Form

Constructor Summary

PredicateCriteria()
Constructs a default instance of this class.

Method Summary

abstract java.lang.Object

clone() Deep copy of object

Methods inherited from class com.metamatrix.query.sql.lang.Criteria

combineCriteria, combineCriteria, combineCriteria, separateCriteriaByAnd, toConjunctiveNormalForm, toDisjunctiveNormalForm, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.metamatrix.query.sql.LanguageObject

acceptVisitor

Constructor Detail

PredicateCriteria

public PredicateCriteria()

Constructs a default instance of this class.

Method Detail

clone

public abstract java.lang.Object clone()

Deep copy of object

Specified by:

clone in interface LanguageObject

Specified by:

clone in class Criteria

Returns:

Deep copy of object