Package org.camunda.community.bpmndt.strategy

Class DefaultHandlerStrategy

java.lang.Object

org.camunda.community.bpmndt.strategy.DefaultStrategy

org.camunda.community.bpmndt.strategy.DefaultHandlerStrategy

All Implemented Interfaces:

GeneratorStrategy

Direct Known Subclasses:

CallActivityStrategy, CustomMultiInstanceStrategy, JobStrategy, MessageEventStrategy, OutboundConnectorStrategy, ReceiveTaskStrategy, SignalEventStrategy, TimerEventStrategy, UserTaskStrategy

public class DefaultHandlerStrategy
extends DefaultStrategy

Default strategy for all handled BPMN element, that provide a fluent handler API.

Field Summary

Fields inherited from class org.camunda.community.bpmndt.strategy.DefaultStrategy

CALL_ACTIVITY, CUSTOM_MULTI_INSTANCE, element, JOB, literal, MESSAGE_EVENT, OTHER, OUTBOUND_CONNECTOR, RECEIVE_TASK, SIGNAL_EVENT, TIMER_EVENT, USER_TASK

Constructor Summary

Constructors

Constructor	Description
DefaultHandlerStrategy(BpmnElement element)

Method Summary

Modifier and Type	Method	Description
void	addHandlerField(com.squareup.javapoet.TypeSpec.Builder classBuilder)	Adds a handler field to the class, if the element is handled by a handler - e.g.:
void	addHandlerMethod(com.squareup.javapoet.TypeSpec.Builder classBuilder)	Adds a "handle" method to the class, if the element is handled by a handler - e.g.:
void	applyHandler(com.squareup.javapoet.MethodSpec.Builder methodBuilder)	Adds code to the execute/apply method, if the element is handled by a handler - e.g.:
com.squareup.javapoet.CodeBlock	getHandler()	Returns code for getting a handler field reference.
void	hasPassed(com.squareup.javapoet.MethodSpec.Builder methodBuilder)	Adds code, which asserts that the process instance has passed a BPMN element.
void	initHandler(com.squareup.javapoet.MethodSpec.Builder methodBuilder)	Adds code, which initializes a handler field.
com.squareup.javapoet.CodeBlock	initHandlerStatement()	Returns the statement that initializes the handler.

Methods inherited from class org.camunda.community.bpmndt.strategy.DefaultStrategy

getElement, getHandlerType, getLiteral, initHandlerElement, isWaitingAt

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultHandlerStrategy

public DefaultHandlerStrategy(BpmnElement element)

Method Details

addHandlerField

public void addHandlerField(com.squareup.javapoet.TypeSpec.Builder classBuilder)

Description copied from interface: GeneratorStrategy

Adds a handler field to the class, if the element is handled by a handler - e.g.:

 private UserTaskHandler approveUserTask;
 

Otherwise, no field is added.

Specified by:

addHandlerField in interface GeneratorStrategy

Overrides:

addHandlerField in class DefaultStrategy

Parameters:

classBuilder - The class builder to use.

addHandlerMethod

public void addHandlerMethod(com.squareup.javapoet.TypeSpec.Builder classBuilder)

Description copied from interface: GeneratorStrategy

Adds a "handle" method to the class, if the element is handled by a handler - e.g.:

 public UserTaskHandler handleApproveUserTask() {
   return approveUserTask;
 }
 

Otherwise, no field is added.

Specified by:

addHandlerMethod in interface GeneratorStrategy

Overrides:

addHandlerMethod in class DefaultStrategy

Parameters:

classBuilder - The class builder to use.

applyHandler

public void applyHandler(com.squareup.javapoet.MethodSpec.Builder methodBuilder)

Description copied from interface: GeneratorStrategy

Adds code to the execute/apply method, if the element is handled by a handler - e.g.:

 instance.isWaitingAt(processInstanceEvent, "placeOrderExternalTask");
 instance.apply(processInstanceEvent, placeOrderExternalTask)
 

or the previous element is an event based gateway.

Specified by:

applyHandler in interface GeneratorStrategy

Overrides:

applyHandler in class DefaultStrategy

Parameters:

methodBuilder - The method builder to use.

getHandler

public com.squareup.javapoet.CodeBlock getHandler()

Description copied from interface: GeneratorStrategy

Returns code for getting a handler field reference. Normally a handler field is references using GeneratorStrategy.getLiteral(), but in case of a multi instance scope a specific getHandler method must be called.

Normally:

 approveUserTask
 

Multi instance scope:

 getApproveUserTaskHandler(loopIndex)
 

Specified by:

getHandler in interface GeneratorStrategy

Overrides:

getHandler in class DefaultStrategy

Returns:

The handler reference code.

hasPassed

public void hasPassed(com.squareup.javapoet.MethodSpec.Builder methodBuilder)

Description copied from interface: GeneratorStrategy

Adds code, which asserts that the process instance has passed a BPMN element.

Specified by:

hasPassed in interface GeneratorStrategy

Overrides:

hasPassed in class DefaultStrategy

Parameters:

methodBuilder - The method builder to use.

initHandler

public void initHandler(com.squareup.javapoet.MethodSpec.Builder methodBuilder)

Description copied from interface: GeneratorStrategy

Adds code, which initializes a handler field.

 approveUserTask = new UserTaskHandler(approveUserTaskElement);
 

Specified by:

initHandler in interface GeneratorStrategy

Overrides:

initHandler in class DefaultStrategy

Parameters:

methodBuilder - The method builder to use.

See Also:

• GeneratorStrategy.initHandlerStatement()

initHandlerStatement

public com.squareup.javapoet.CodeBlock initHandlerStatement()

Description copied from interface: GeneratorStrategy

Returns the statement that initializes the handler.

 new UserTaskHandler(approveUserTaskElement)
 

Specified by:

initHandlerStatement in interface GeneratorStrategy

Overrides:

initHandlerStatement in class DefaultStrategy

Returns:

The code.