org.teiid.language

Class Function

java.lang.Object

org.teiid.language.BaseLanguageObject

org.teiid.language.Function

All Implemented Interfaces:

Expression, LanguageObject, MetadataReference<FunctionMethod>

Direct Known Subclasses:

AggregateFunction

public class Function
extends BaseLanguageObject
implements Expression, MetadataReference<FunctionMethod>

Represents a function. A function has a name and 0..n Expressions that are parameters.

Constructor Summary

Constructors

Constructor and Description
Function(String name, List<? extends Expression> params, Class<?> type)

Method Summary

Methods

Modifier and Type	Method and Description
void	acceptVisitor(LanguageObjectVisitor visitor)
FunctionMethod	getMetadataObject()
String	getName() Get name of the function
List<Expression>	getParameters() Get the parameters used in this function.
Class<?>	getType() Determine the type returned by this expression.
void	setMetadataObject(FunctionMethod metadataObject)
void	setName(String name) Set name of the function
void	setType(Class<?> type)

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

Function

public Function(String name,
        List<? extends Expression> params,
        Class<?> type)

Method Detail

getMetadataObject

public FunctionMethod getMetadataObject()

Specified by:

getMetadataObject in interface MetadataReference<FunctionMethod>

setMetadataObject

public void setMetadataObject(FunctionMethod metadataObject)

getName

public String getName()

Get name of the function

Returns:

Function name

getParameters

public List<Expression> getParameters()

Get the parameters used in this function.

Returns:

Array of IExpressions defining the parameters

acceptVisitor

public void acceptVisitor(LanguageObjectVisitor visitor)

Specified by:

acceptVisitor in interface LanguageObject

setName

public void setName(String name)

Set name of the function

Parameters:

name - Function name

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

setType

public void setType(Class<?> type)