org.teiid.query.sql.symbol
Class SearchedCaseExpression

java.lang.Object
  org.teiid.query.sql.symbol.AbstractCaseExpression
      org.teiid.query.sql.symbol.SearchedCaseExpression

All Implemented Interfaces:

Cloneable, LanguageObject, Expression

public class SearchedCaseExpression
extends AbstractCaseExpression

Nested Class Summary

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

LanguageObject.Util

Constructor Summary

SearchedCaseExpression(List when, List then)
Constructor for SearchedCaseExpression objects

Method Summary

void	acceptVisitor(LanguageVisitor visitor) Method for accepting a visitor.
Object	clone() Implement clone to make objects cloneable.
boolean	equals(Object obj)
List	getWhen() Gets the List of Criteria in the WHEN parts of this expression.
int	getWhenCount() Gets the number of WHEN and THEN parts this case expression contains.
Criteria	getWhenCriteria(int index) Gets the WHEN criteria at the given 0-based index.
boolean	isResolved() Return true if expression has been fully resolved.
void	setWhen(List when, List then) Sets the WHEN and THEN parts of this CASE expression.

Methods inherited from class org.teiid.query.sql.symbol.AbstractCaseExpression

getElseExpression, getThen, getThenExpression, getType, hashCode, setElseExpression, setThen, setType, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SearchedCaseExpression

public SearchedCaseExpression(List when,
                              List then)

Constructor for SearchedCaseExpression objects

Parameters:

when - a non-null List containing at least one Criteria

then - a non-null List containing at least one Expression

Method Detail

getWhenCount

public int getWhenCount()

Description copied from class: AbstractCaseExpression

Gets the number of WHEN and THEN parts this case expression contains. This number is always >= 1.

Specified by:

getWhenCount in class AbstractCaseExpression

Returns:

See Also:

AbstractCaseExpression.getWhenCount()

getWhen

public List getWhen()

Gets the List of Criteria in the WHEN parts of this expression. Never null.

Returns:

getWhenCriteria

public Criteria getWhenCriteria(int index)

Gets the WHEN criteria at the given 0-based index.

Parameters:

index -

Returns:

setWhen

public void setWhen(List when,
                    List then)

Sets the WHEN and THEN parts of this CASE expression. Both lists should have the same number of items.

Specified by:

setWhen in class AbstractCaseExpression

Parameters:

when - a non-null List of at least one Criteria

then - a non-null List of at least one Expression

isResolved

public boolean isResolved()

Description copied from interface: Expression

Return true if expression has been fully resolved. Typically the QueryResolver component will handle resolution of an expression.

Returns:

True if resolved

See Also:

Expression.isResolved()

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

clone

public Object clone()

Description copied from interface: LanguageObject

Implement clone to make objects cloneable.

Specified by:

clone in interface LanguageObject

Specified by:

clone in class AbstractCaseExpression

Returns:

Deep clone of this object

See Also:

Object.clone()

equals

public boolean equals(Object obj)

Overrides:

equals in class AbstractCaseExpression