org.teiid.query.sql.lang

Class SetCriteria

java.lang.Object

org.teiid.query.sql.lang.Criteria

org.teiid.query.sql.lang.PredicateCriteria

org.teiid.query.sql.lang.AbstractSetCriteria

org.teiid.query.sql.lang.SetCriteria

All Implemented Interfaces:

Cloneable, PredicateCriteria.Negatable, LanguageObject, Expression

public class SetCriteria
extends AbstractSetCriteria

A criteria which is true is the expression's value is a member in a list of values. This criteria can be represented as "<expression> IN (<expr>, ...)".

Nested Class Summary

Nested classes/interfaces inherited from class org.teiid.query.sql.lang.PredicateCriteria

PredicateCriteria.Negatable

Nested classes/interfaces inherited from interface org.teiid.query.sql.LanguageObject

LanguageObject.Util

Constructor Summary

Constructors

Constructor and Description
SetCriteria() Constructs a default instance of this class.
SetCriteria(Expression expression, Collection values) Constructs an instance of this class with the membership expression and value expressions

Method Summary

Modifier and Type	Method and Description
void	acceptVisitor(LanguageVisitor visitor) Method for accepting a visitor.
Object	clone() Deep copy of object
boolean	equals(Object obj) Override equals() method.
int	getNumberOfValues() Returns the number of values in the set.
Collection	getValues() Returns the set of values.
int	hashCode() Get hash code.
boolean	isAllConstants()
void	set(Expression expression, Collection values) Sets the membership expression and the set of value expressions
void	setAllConstants(boolean allConstants)
void	setValues(Collection values) Sets the values in the set.

Methods inherited from class org.teiid.query.sql.lang.AbstractSetCriteria

getExpression, isNegated, negate, setExpression, setNegated

Methods inherited from class org.teiid.query.sql.lang.Criteria

applyDemorgan, combineCriteria, combineCriteria, combineCriteria, getType, separateCriteriaByAnd, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SetCriteria

public SetCriteria()

Constructs a default instance of this class.

SetCriteria

public SetCriteria(Expression expression,
                   Collection values)

Constructs an instance of this class with the membership expression and value expressions

Parameters:

expression - The membership expression

values - The set of value Expressions

Method Detail

getNumberOfValues

public int getNumberOfValues()

Returns the number of values in the set.

Returns:

Number of values in set

getValues

public Collection getValues()

Returns the set of values. Returns an empty collection if there are currently no values.

Returns:

The collection of Expression values

setValues

public void setValues(Collection values)

Sets the values in the set.

Parameters:

values - The set of value Expressions

set

public void set(Expression expression,
                Collection values)

Sets the membership expression and the set of value expressions

Parameters:

expression - The membership expression

values - The set of value expressions

acceptVisitor

public void acceptVisitor(LanguageVisitor visitor)

Description copied from interface: LanguageObject

Method for accepting a visitor. It is the responsibility of the language object to call back on the visitor.

Parameters:

visitor - Visitor being used

hashCode

public int hashCode()

Get hash code. WARNING: The hash code is based on data in the criteria. If data values are changed, the hash code will change - don't hash this object and change values.

Overrides:

hashCode in class Object

Returns:

Hash code

equals

public boolean equals(Object obj)

Override equals() method.

Overrides:

equals in class Object

Parameters:

obj - Other object

Returns:

True if equal

clone

public Object clone()

Deep copy of object

Specified by:

clone in interface LanguageObject

Specified by:

clone in class AbstractSetCriteria

Returns:

Deep copy of object

isAllConstants

public boolean isAllConstants()

setAllConstants

public void setAllConstants(boolean allConstants)