org.universAAL.middleware.service.owls.process

Class ProcessParameter

java.lang.Object

org.universAAL.middleware.rdf.Resource

org.universAAL.middleware.rdf.FinalizedResource

org.universAAL.middleware.rdf.Variable

org.universAAL.middleware.service.owls.process.ProcessParameter

Direct Known Subclasses:

ProcessInput, ProcessLocal, ProcessOutput

public class ProcessParameter
extends Variable

Implementation of process:Parameter (xmlns:process="http://www.daml.org/services/owl-s/1.1/Process.owl#"). A parameter has an overall type and a value that can be set differently in different utilization contexts, unless it is a constant.

This implementation of process:Parameter, however, differs from the OWL-S process ontology in the following way:

1. Three universAAL-specific properties are added in order to be able to define cardinality restrictions on process:parameterValue. All three are optional properties and accept only positive integers. Negative values and zero will simply be ignored. The corresponding properties are cardinality for specifying a precise cardinality, maxCardinality for specifying the maximum number of values assignable to the parameter, and minCardinality for specifying the minimum number of values to be assigned to the parameter. The cardinality property is not visible at the programming level and is only used in serializations, when both maxCardinality and minCardinality have the same value in order to produce shorter serializations. If no value is specified for maxCardinality, Integer.MAX_VALUE is assumed; in case of minCardinality, zero is assumed, which means that the parameter is an optional parameter. Hence, the original process:parameterType specifies the type of a single value and the above cardinality specifications determine how many of such values can be assigned to process:parameterValue.
2. If a parameter is optional (no minCardinality restriction specified) but references to it are used in the definition of service effects or restrictions, then its default value must be specified using a universAAL-specific property, namely defaultValue.

Author:

mtazari

Nested Class Summary

Nested classes/interfaces inherited from class org.universAAL.middleware.rdf.Variable

Variable.VariableHandler

Field Summary

Fields

Modifier and Type	Field and Description
static String	MY_URI
static String	OWLS_PROCESS_NAMESPACE
static String	PROP_OWLS_PROCESS_PARAMETER_TYPE
static String	PROP_OWLS_PROCESS_PARAMETER_VALUE
static String	PROP_OWLS_VALUE_FROM_PROCESS
static String	PROP_OWLS_VALUE_OF_THE_VAR
static String	PROP_PARAMETER_CARDINALITY
static String	PROP_PARAMETER_DEFAULT_VALUE
static String	PROP_PARAMETER_MAX_CARDINALITY
static String	PROP_PARAMETER_MIN_CARDINALITY
static String	TYPE_OWLS_VALUE_OF

Fields inherited from class org.universAAL.middleware.rdf.Variable

VAR_ACCESSING_BUS_MEMBER, VAR_ACCESSING_HUMAN_USER, VAR_CURRENT_DATETIME, VAR_SERVICE_TO_SELECT

Fields inherited from class org.universAAL.middleware.rdf.Resource

ANON_URI_PREFIX, blockAddingTypes, isXMLLiteral, NAMESPACE_PREFIX, ns_delim_index, PROP_INVOLVED_HUMAN_USER, PROP_RDF_FIRST, PROP_RDF_REST, PROP_RDF_TYPE, PROP_RDFS_COMMENT, PROP_RDFS_LABEL, PROP_SERIALIZATION_FULL, PROP_SERIALIZATION_OPTIONAL, PROP_SERIALIZATION_REDUCED, PROP_SERIALIZATION_UNDEFINED, props, RDF_EMPTY_LIST, RDF_NAMESPACE, RDFS_NAMESPACE, SERVICE_NAMESPACE, TYPE_RDF_LIST, TYPE_RDFS_CLASS, uri, VOCABULARY_NAMESPACE

Constructor Summary

Constructors

Constructor and Description
ProcessParameter(String uri, String subType)

Method Summary

Modifier and Type	Method and Description
Resource	asVariableReference() Create a variable reference (a resource of OWL-S http://www.daml.org/services/owl-s/1.1/Process.owl#ValueOf class) from this ProcessParameter
Object	getDefaultValue() Returns the default value of this parameter
int	getMaxCardinality() Returns the maximal cardinality of this parameter
int	getMinCardinality() Returns the minimal cardinality of this parameter
String	getParameterType() Returns the parameter type of this parameter
Object	getParameterValue() Returns the value of this parameter
boolean	isWellFormed() return true iff this process parameter is well formed (the properties have consistent values)
boolean	setCardinality(int max, int min) Set cardinality of the process parameter
boolean	setDefaultValue(Object value) Set the default value of this parameter
boolean	setParameterType(String typeURI) Set the parameter type of this parameter
boolean	setParameterValue(Object value) Set the value of this parameter
boolean	setProperty(String prop, Object val) Set a value of a property for this process parameter

Methods inherited from class org.universAAL.middleware.rdf.Variable

checkDeserialization, isVarRef, register, resolveVarRef

Methods inherited from class org.universAAL.middleware.rdf.FinalizedResource

addType, getLocalName, getNamespace, getProperty, getPropertyURIs, getType, getTypes, getURI, hasQualifiedName, isAnon, numberOfProperties

Methods inherited from class org.universAAL.middleware.rdf.Resource

addMultiLangProp, asList, asList, asRDFList, changeProperty, copy, deepCopy, equals, generateAnonURI, getDefaultLang, getFilename, getMultiLangProp, getOrConstructLabel, getOrConstructLabel, getPropSerializationType, getResource, getResourceComment, getResourceLabel, getResourceLabel, getStaticFieldValue, hashCode, hasProperty, isAnon, isBlockingAddingTypes, isClosedCollection, isQualifiedName, literal, representsQualifiedURI, serializesAsXMLLiteral, setPropertyPath, setPropertyPath, setPropertyPathFromOffset, setResourceComment, setResourceLabel, toString, toStringRecursive, toStringRecursive, unliteral

Methods inherited from class java.lang.Object

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

Field Detail

OWLS_PROCESS_NAMESPACE

public static final String OWLS_PROCESS_NAMESPACE

See Also:

Constant Field Values

MY_URI

public static final String MY_URI

See Also:

Constant Field Values

PROP_OWLS_PROCESS_PARAMETER_TYPE

public static final String PROP_OWLS_PROCESS_PARAMETER_TYPE

See Also:

Constant Field Values

PROP_OWLS_PROCESS_PARAMETER_VALUE

public static final String PROP_OWLS_PROCESS_PARAMETER_VALUE

See Also:

Constant Field Values

PROP_PARAMETER_DEFAULT_VALUE

public static final String PROP_PARAMETER_DEFAULT_VALUE

See Also:

Constant Field Values

PROP_PARAMETER_CARDINALITY

public static final String PROP_PARAMETER_CARDINALITY

See Also:

Constant Field Values

PROP_PARAMETER_MAX_CARDINALITY

public static final String PROP_PARAMETER_MAX_CARDINALITY

See Also:

Constant Field Values

PROP_PARAMETER_MIN_CARDINALITY

public static final String PROP_PARAMETER_MIN_CARDINALITY

See Also:

Constant Field Values

PROP_OWLS_VALUE_OF_THE_VAR

public static final String PROP_OWLS_VALUE_OF_THE_VAR

See Also:

Constant Field Values

PROP_OWLS_VALUE_FROM_PROCESS

public static final String PROP_OWLS_VALUE_FROM_PROCESS

See Also:

Constant Field Values

TYPE_OWLS_VALUE_OF

public static final String TYPE_OWLS_VALUE_OF

See Also:

Constant Field Values

Constructor Detail

ProcessParameter

public ProcessParameter(String uri,
                        String subType)

Method Detail

asVariableReference

public Resource asVariableReference()

Create a variable reference (a resource of OWL-S http://www.daml.org/services/owl-s/1.1/Process.owl#ValueOf class) from this ProcessParameter

Returns:

the Variable Reference resource

getMaxCardinality

public int getMaxCardinality()

Returns the maximal cardinality of this parameter

Returns:

- the maximal cardinality

getMinCardinality

public int getMinCardinality()

Returns the minimal cardinality of this parameter

Specified by:

getMinCardinality in class Variable

Returns:

- the minimal cardinality

getDefaultValue

public Object getDefaultValue()

Returns the default value of this parameter

Specified by:

getDefaultValue in class Variable

Returns:

- the object representing the default value

getParameterType

public String getParameterType()

Returns the parameter type of this parameter

Specified by:

getParameterType in class Variable

Returns:

String - the parameter type

getParameterValue

public Object getParameterValue()

Returns the value of this parameter

Returns:

- the object representing the value

isWellFormed

public boolean isWellFormed()

return true iff this process parameter is well formed (the properties have consistent values)

Overrides:

isWellFormed in class Resource

setCardinality

public final boolean setCardinality(int max,
                                    int min)

Set cardinality of the process parameter

Parameters:

max - - maximal cardinality

min - - minimal cardinality

setDefaultValue

public final boolean setDefaultValue(Object value)

Set the default value of this parameter

Parameters:

value - - the object representing the default value

setParameterType

public final boolean setParameterType(String typeURI)

Set the parameter type of this parameter

Parameters:

typeURI - - the URI of the parameter type

setParameterValue

public final boolean setParameterValue(Object value)

Set the value of this parameter

Parameters:

value - - the object representing the value

setProperty

public boolean setProperty(String prop,
                           Object val)

Set a value of a property for this process parameter

Overrides:

setProperty in class Resource

Parameters:

prop - - the property to set

val - - the value to set for the property

Returns:

true if the property changed as a result of the call