org.teiid.language

Class Literal

java.lang.Object

org.teiid.language.BaseLanguageObject

org.teiid.language.Literal

All Implemented Interfaces:

Expression, LanguageObject

public class Literal
extends BaseLanguageObject
implements Expression

Represents a literal value that is used in an expression. The value can be obtained and should match the type specified by getType()

Constructor Summary

Constructors

Constructor and Description
Literal(Object value, Class<?> type)

Method Summary

Modifier and Type	Method and Description
void	acceptVisitor(LanguageObjectVisitor visitor)
Class<?>	getType() Determine the type returned by this expression.
Object	getValue()
boolean	isBindEligible() Set by the optimizer if the literal was created by the evaluation of another expression.
void	setBindEligible(boolean isBindEligible)
void	setType(Class<?> type)
void	setValue(Object value)

Methods inherited from class org.teiid.language.BaseLanguageObject

toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Literal

public Literal(Object value,
               Class<?> type)

Method Detail

getValue

public Object getValue()

acceptVisitor

public void acceptVisitor(LanguageObjectVisitor visitor)

Specified by:

acceptVisitor in interface LanguageObject

getType

public Class<?> getType()

Description copied from interface: Expression

Determine the type returned by this expression.

Specified by:

getType in interface Expression

Returns:

The type, as defined by a Java class

setValue

public void setValue(Object value)

setType

public void setType(Class<?> type)

isBindEligible

public boolean isBindEligible()

Set by the optimizer if the literal was created by the evaluation of another expression. Setting to true will not always result in the value being handled as a bind value.

Returns:

setBindEligible

public void setBindEligible(boolean isBindEligible)