de.jstacs.parameters.validation
Class StorableValidator

java.lang.Object
  de.jstacs.parameters.validation.StorableValidator

All Implemented Interfaces:

ParameterValidator, Storable, Cloneable

public class StorableValidator
extends Object
implements ParameterValidator

Class for a validator that validates instances and XML representations for the correct class types (e.g. AbstractTrainableStatisticalModel).

Author:

Jan Grau

Constructor Summary

StorableValidator(Class<? extends Storable> clazz)
Creates a new StorableValidator for a subclass of Storable.

StorableValidator(Class<? extends Storable> clazz, boolean trained)
Creates a new StorableValidator for a subclass of AbstractTrainableStatisticalModel or AbstractClassifier.

StorableValidator(StringBuffer buf)
The standard constructor for the interface Storable.

Method Summary

boolean	checkValue(Object value) Checks the value of value.
StorableValidator	clone() This method returns a deep copy of the current instance.
void	fromXML(StringBuffer representation) Parses a StorableValidator from the XML representation as returned by toXML().
String	getErrorMessage() Returns the error message if ParameterValidator.checkValue(Object) returned false.
StringBuffer	toXML() This method returns an XML representation as StringBuffer of an instance of the implementing class.

Methods inherited from class java.lang.Object

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

Constructor Detail

StorableValidator

public StorableValidator(Class<? extends Storable> clazz,
                         boolean trained)
                  throws Exception

Creates a new StorableValidator for a subclass of AbstractTrainableStatisticalModel or AbstractClassifier. This constructor may not be used on other subclasses of Storable.

Parameters:

clazz - the class

trained - true if the model or classifier must be trained

Throws:

Exception - if clazz is not of the expected type

StorableValidator

public StorableValidator(Class<? extends Storable> clazz)
                  throws Exception

Creates a new StorableValidator for a subclass of Storable.

Parameters:

clazz - the class

Throws:

Exception - if clazz is not of the expected type

StorableValidator

public StorableValidator(StringBuffer buf)
                  throws NonParsableException

The standard constructor for the interface Storable. Constructs an StorableValidator from its XML representation.

Parameters:

buf - the XML representation as StringBuffer

Throws:

NonParsableException - if buf could not be parsed

Method Detail

clone

public StorableValidator clone()
                        throws CloneNotSupportedException

Description copied from interface: ParameterValidator

This method returns a deep copy of the current instance.

Specified by:

clone in interface ParameterValidator

Overrides:

clone in class Object

Returns:

a deep copy of the current index

Throws:

CloneNotSupportedException - if the ParameterValidator could not be cloned

See Also:

Cloneable

checkValue

public boolean checkValue(Object value)

Checks the value of value. Allowed types of value are AbstractTrainableStatisticalModel, AbstractClassifier, FileParameter.FileRepresentation, String, and StringBuffer. In all cases where an XML representation is given as value, it must be surrounded by <object>-tags and these tags must contain a <className>-element that contains the name of the class of the represented instance.

Specified by:

checkValue in interface ParameterValidator

Parameters:

value - the Object to be checked

Returns:

true if value is valid and false otherwise

getErrorMessage

public String getErrorMessage()

Description copied from interface: ParameterValidator

Returns the error message if ParameterValidator.checkValue(Object) returned false.

Specified by:

getErrorMessage in interface ParameterValidator

Returns:

the error message

toXML

public StringBuffer toXML()

Description copied from interface: Storable

This method returns an XML representation as StringBuffer of an instance of the implementing class.

Specified by:

toXML in interface Storable

Returns:

the XML representation

fromXML

public void fromXML(StringBuffer representation)
             throws NonParsableException

Parses a StorableValidator from the XML representation as returned by toXML().

Parameters:

representation - the XML representation

Throws:

NonParsableException - if the XML code could not be parsed