org.bonitasoft.engine.command

Interface Command<T extends ServiceAccessor>

All Known Implementing Classes:

AddEntityMemberCommand, AddHandlerCommand, AddPerfHandlerCommand, AdvancedStartProcessCommand, CanStartProcessDefinition, CommandWithParameters, DeleteEntityMembersCommand, EntityMemberCommand, ExecuteActionsAndTerminateTask, ExecuteActionsBaseEntry, ExecuteEventHandlingNow, ExternalIdentityMappingCommand, GetUpdatedVariableValuesForActivityInstance, GetUpdatedVariableValuesForProcessDefinition, GetUpdatedVariableValuesForProcessInstance, ImportProfilesCommand, IsAllowedToSeeOverviewForm, IsAllowedToStartProcess, IsAllowedToStartProcesses, IsInvolvedInHumanTask, MemberCommand, PlatformCommand, RemoveEntityMemberCommand, SearchCommentsSupervisedBy, SearchEntityMembersCommand, SearchEntityMembersForUserCommand, SearchWaitingEventsCommand, TenantCommand, UpdateVariableValuesThroughOperations, WaitServerCommand

public interface Command<T extends ServiceAccessor>

A command is a class that is called from the API and executed on the server side.
It is used to extend the engine behavior. See CommandAPI for explanations of how to deploy, undeploy and execute a command.
This class should not be directly subclassed by implementors: use PlatformCommand or TenantCommand instead.

Author:

Matthieu Chaffotte

See Also:

CommandAPI, PlatformCommand, TenantCommand

Method Summary

Methods

Modifier and Type	Method and Description
Serializable	execute(Map<String,Serializable> parameters, T serviceAccessor) Method that is called by the engine on the server side when the client calls CommandAPI#execute(String, Map) with the name or id of this command.

Method Detail

execute

Serializable execute(Map<String,Serializable> parameters,
                   T serviceAccessor)
                     throws SCommandParameterizationException,
                            SCommandExecutionException

Method that is called by the engine on the server side when the client calls CommandAPI#execute(String, Map) with the name or id of this command. Implementors of commands must put here the code to be executed on the server side

Parameters:

parameters - a map of parameters that can be used by the command and that is given by the client when executing the command

serviceAccessor - the TenantServiceAccessor or PlatformServiceAccessor that provides access to the engine's server-side services

Returns:

a result that will be returned to the client

Throws:

SCommandParameterizationException - can be thrown if insufficient or wrong parameters are given by the client

SCommandExecutionException - can be thrown when something unexpected happens while executing the command