org.pentaho.reporting.libraries.formula.function

Class DefaultFunctionDescription

java.lang.Object

org.pentaho.reporting.libraries.formula.function.DefaultFunctionDescription

All Implemented Interfaces:

Serializable, FunctionDescription

public class DefaultFunctionDescription
extends Object
implements FunctionDescription

Creation-Date: 05.11.2006, 15:13:03

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DefaultFunctionDescription(String name)

Method Summary

Methods

Modifier and Type	Method and Description
String	getCanonicalName()
FunctionCategory	getCategory()
Object	getDefaultValue(int position) Returns the default value for an optional parameter.
String	getDescription(Locale locale)
String	getDisplayName(Locale locale)
int	getParameterCount()
String	getParameterDescription(int position, Locale locale)
String	getParameterDisplayName(int position, Locale locale)
Type	getParameterType(int position) Returns the parameter type at the given position using the function metadata.
Type	getValueType()
boolean	isInfiniteParameterCount()
boolean	isParameterMandatory(int position) Defines, whether the parameter at the given position is mandatory.
boolean	isVolatile()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultFunctionDescription

public DefaultFunctionDescription(String name)

Method Detail

getCanonicalName

public String getCanonicalName()

Specified by:

getCanonicalName in interface FunctionDescription

getValueType

public Type getValueType()

Specified by:

getValueType in interface FunctionDescription

getCategory

public FunctionCategory getCategory()

Specified by:

getCategory in interface FunctionDescription

getParameterCount

public int getParameterCount()

Specified by:

getParameterCount in interface FunctionDescription

getParameterType

public Type getParameterType(int position)

Description copied from interface: FunctionDescription

Returns the parameter type at the given position using the function metadata. The first parameter is at the position 0;

Specified by:

getParameterType in interface FunctionDescription

Parameters:

position - The parameter index.

Returns:

The parameter type.

isParameterMandatory

public boolean isParameterMandatory(int position)

Defines, whether the parameter at the given position is mandatory. A mandatory parameter must be filled in, while optional parameters need not to be filled in.

Specified by:

isParameterMandatory in interface FunctionDescription

Returns:

getDisplayName

public String getDisplayName(Locale locale)

Specified by:

getDisplayName in interface FunctionDescription

getDescription

public String getDescription(Locale locale)

Specified by:

getDescription in interface FunctionDescription

isVolatile

public boolean isVolatile()

Specified by:

isVolatile in interface FunctionDescription

isInfiniteParameterCount

public boolean isInfiniteParameterCount()

Specified by:

isInfiniteParameterCount in interface FunctionDescription

getParameterDisplayName

public String getParameterDisplayName(int position,
                             Locale locale)

Specified by:

getParameterDisplayName in interface FunctionDescription

getParameterDescription

public String getParameterDescription(int position,
                             Locale locale)

Specified by:

getParameterDescription in interface FunctionDescription

getDefaultValue

public Object getDefaultValue(int position)

Returns the default value for an optional parameter. If the value returned here is null, then this either means, that the parameter is mandatory or that the default value is computed by the expression itself.

Specified by:

getDefaultValue in interface FunctionDescription

Parameters:

position -

Returns: