com.whitestein.lsps.engine.lang

Class AbstractContextNamespace

java.lang.Object

com.whitestein.lsps.engine.lang.AbstractContextNamespace

All Implemented Interfaces:

Namespace, HolderFactory, JavaOperationExecutor

Direct Known Subclasses:

ContextNamespace, NoBaseContextNamespace, RecordNamespace

public abstract class AbstractContextNamespace
extends Object
implements Namespace, JavaOperationExecutor

Abstract namespace for context.

Author:

bhl

Constructor Summary

Constructors

Constructor and Description
AbstractContextNamespace(ModelProviderClientService modelProviderService, Context context) Creates new instance.

Method Summary

Modifier and Type	Method and Description
protected void	checkCanAssignToVariable(Context context, String name) Check if it is possible to assign a value to variable.
protected Namespace	createChildNamespaceInternal(String name, Collection<Field> fields, Collection<?> values, InterpreterConfiguration configuration) Creates child namespace in required evaluation level.
ListHolder	createRange(long first, long last) Creates a range (list) defined by endpoints (both inclusive).
Object	executeJavaOperation(String className, String methodName, Class<?>[] argClasses, List<Object> evaluatedArgs, InterpreterStackTrace stackTrace) Executes the operation.
Object	getConstantValue(String moduleName, String constantName) Returns the value of the constant with the given name from a (imported) module with a given module name.
protected Context	getContext() Returns context.
long	getContextId() Returns context id.
protected RuntimeToPersistentConverter	getConverter() Returns instance of RuntimeToPersistentConverter.
protected EvaluationLevelConverter	getEvaluationConverter() Returns instance of EvaluationLevelConverter.
String	getEvaluationLevel() Returns evaluation level.
ExecutionContext	getExecutionContext()
protected long	getFunctionContextId(FunctionExpression expression)
String	getModelElementId() Returns id of model element that is related to this namespace.
long	getModelId() Returns model id.
long	getModelInstanceId() Returns model instance id.
ModelProviderClientService	getModelProviderService() Returns the provided model provider service.
String	getName() Returns name of this namespace.
protected AbstractContextNamespace	getNamespace(Context ctx) Returns namespace for a context.
AbstractContextNamespace	getNamespaceInLevel(String level) Returns namespace in evaluation level.
NamespaceModel	getNamespaceModel() Returns NamespaceModel for this namespace.
QID	getPathQID() Returns QID of the context path.
com.whitestein.lsps.model.ProcessModel	getProcessModel() Returns process model.
protected long	getReferencedContextId(ContextReferencingExpression expression)
RecordHolder	getThis() Returns object that represents this.
void	remove() INTERNAL API.
RecordType	resolveRecordType(String type) Resolves record type and returns its type.
Type	resolveType(String type) Resolves type.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.whitestein.lsps.lang.exec.Namespace

addNewVariable, canBeInterpretedIn, containsVariable, createChildNamespace, getConfiguration, getFreeType, getHolderFactory, getJavaObject, getLowerLevelNamespace, getModuleNames, getModuleNamespace, getParentNamespace, getVariableNames, getVariableType, getVariableValue, setFreeType, setPerformReadOnlyCheck, setVariableValue

Methods inherited from interface com.whitestein.lsps.lang.HolderFactory

createBinaryHolder, createBinaryHolder, createClosure, createClosure, createClosure, createClosureFromExpression, createExternalRecordProxy, createList, createMap, createNonSharedRecord, createRecord, createRecord, createRecord, createRecord, createReference, createSet

Constructor Detail

AbstractContextNamespace

public AbstractContextNamespace(ModelProviderClientService modelProviderService,
                                Context context)

Creates new instance.

Parameters:

modelProviderService -

context -

Method Detail

getModelProviderService

public ModelProviderClientService getModelProviderService()

Returns the provided model provider service.

Returns:

the provided model provider service

getContext

protected Context getContext()

Returns context.

Returns:

context

getName

public String getName()

Description copied from interface: Namespace

Returns name of this namespace. Name is always not null and does not have to be unique. Multiple namespaces can share same name.

Specified by:

getName in interface Namespace

Returns:

name if this namespace

getProcessModel

public com.whitestein.lsps.model.ProcessModel getProcessModel()

Returns process model.

Returns:

process model

getNamespaceModel

public NamespaceModel getNamespaceModel()

Description copied from interface: Namespace

Returns NamespaceModel for this namespace.

Specified by:

getNamespaceModel in interface Namespace

Returns:

NamespaceModel for this namespace

getModelId

public long getModelId()

Description copied from interface: Namespace

Returns model id.

Specified by:

getModelId in interface Namespace

Returns:

model id

getModelInstanceId

public long getModelInstanceId()

Description copied from interface: Namespace

Returns model instance id.

Specified by:

getModelInstanceId in interface Namespace

Returns:

model instance id

getModelElementId

public String getModelElementId()

Description copied from interface: Namespace

Returns id of model element that is related to this namespace.

Specified by:

getModelElementId in interface Namespace

Returns:

id of model element

getContextId

public long getContextId()

Description copied from interface: Namespace

Returns context id.

Specified by:

getContextId in interface Namespace

Returns:

context id

getConverter

protected RuntimeToPersistentConverter getConverter()

Returns instance of RuntimeToPersistentConverter.

Returns:

converter

getEvaluationConverter

protected EvaluationLevelConverter getEvaluationConverter()

Returns instance of EvaluationLevelConverter.

Returns:

converter

getConstantValue

public Object getConstantValue(String moduleName,
                               String constantName)

Description copied from interface: Namespace

Returns the value of the constant with the given name from a (imported) module with a given module name.

Specified by:

getConstantValue in interface Namespace

Returns:

the value of the constant with the given name or null if there is no such a constant

resolveRecordType

public RecordType resolveRecordType(String type)

Description copied from interface: Namespace

Resolves record type and returns its type.

To check if such record exists, call NamespaceModel.findNamedType(QID) as follows:

final boolean recordExists = getNamespaceModel().findNamedType(QID.parse(type)) != null;

Specified by:

resolveRecordType in interface Namespace

Parameters:

type - fully qualified record type, not null.

Returns:

record type, never null.

resolveType

public Type resolveType(String type)

Description copied from interface: Namespace

Resolves type.

Specified by:

resolveType in interface Namespace

Returns:

type

checkCanAssignToVariable

protected void checkCanAssignToVariable(Context context,
                                        String name)

Check if it is possible to assign a value to variable.

Parameters:

context -

name -

getEvaluationLevel

public String getEvaluationLevel()

Returns evaluation level.

Specified by:

getEvaluationLevel in interface Namespace

Returns:

evaluation level

getPathQID

public QID getPathQID()

Description copied from interface: Namespace

Returns QID of the context path.

Specified by:

getPathQID in interface Namespace

Returns:

QID of the context path

executeJavaOperation

public Object executeJavaOperation(String className,
                                   String methodName,
                                   Class<?>[] argClasses,
                                   List<Object> evaluatedArgs,
                                   InterpreterStackTrace stackTrace)
                            throws ErrorException

Description copied from interface: JavaOperationExecutor

Executes the operation.

Specified by:

executeJavaOperation in interface JavaOperationExecutor

stackTrace - a stack trace

Returns:

the result

Throws:

ErrorException - the error exception

toString

public String toString()

Overrides:

toString in class Object

createChildNamespaceInternal

protected Namespace createChildNamespaceInternal(String name,
                                                 Collection<Field> fields,
                                                 Collection<?> values,
                                                 InterpreterConfiguration configuration)

Creates child namespace in required evaluation level.

Parameters:

name -

fields -

values -

configuration -

Returns:

child namespace in required evaluation level

getNamespaceInLevel

public AbstractContextNamespace getNamespaceInLevel(String level)

Description copied from interface: Namespace

Returns namespace in evaluation level.

Specified by:

getNamespaceInLevel in interface Namespace

Returns:

namespace in evaluation level

getNamespace

protected AbstractContextNamespace getNamespace(Context ctx)

Returns namespace for a context.

Parameters:

ctx -

Returns:

namespace for a context

getExecutionContext

public ExecutionContext getExecutionContext()

Specified by:

getExecutionContext in interface Namespace

getThis

public RecordHolder getThis()

Description copied from interface: Namespace

Returns object that represents this.

Specified by:

getThis in interface Namespace

Returns:

object that represents this.

createRange

public ListHolder createRange(long first,
                              long last)

Description copied from interface: HolderFactory

Creates a range (list) defined by endpoints (both inclusive).

If first <= last, the range contains elements first, first + 1, ..., last.

If first > last, the range contains elements first, first - 1, ..., last.

The memory footprint of range in constant (only endpoints and size is stored, not all elements).

Specified by:

createRange in interface HolderFactory

Returns:

the created list

getReferencedContextId

protected long getReferencedContextId(ContextReferencingExpression expression)

getFunctionContextId

protected long getFunctionContextId(FunctionExpression expression)

remove

public void remove()

Description copied from interface: Namespace

INTERNAL API. Removes the namespace from its parent and from the model instance.

Specified by:

remove in interface Namespace