org.camunda.bpm.engine.impl.migration.validation.instruction
Class GatewayMappingValidator

java.lang.Object
  org.camunda.bpm.engine.impl.migration.validation.instruction.GatewayMappingValidator

All Implemented Interfaces:

MigrationInstructionValidator

public class GatewayMappingValidator
extends Object
implements MigrationInstructionValidator

For synchronizing gateways (inclusive; parallel), the situation in which more tokens end up at the target gateway than there are incoming sequence flows must be avoided. Else, the migrated process instance may appear as broken to users since the migration logic cannot trigger these gateways immediately.

Such situations can be avoided by enforcing that

• the target gateway has at least the same number of incoming sequence flows
• the target gateway's flow scope is not removed
• there is not more than one instruction that maps to the target gateway

  Author:

  Thorben Lindhauer

  Constructor Summary

  GatewayMappingValidator()
  

  Method Summary

  protected boolean	isWaitStateGateway(ActivityImpl activity)
  void	validate(ValidatingMigrationInstruction instruction, ValidatingMigrationInstructions instructions, MigrationInstructionValidationReportImpl report) Check that a migration instruction is valid for a migration plan.
  protected void	validateIncomingSequenceFlows(ValidatingMigrationInstruction instruction, ValidatingMigrationInstructions instructions, MigrationInstructionValidationReportImpl report)
  protected void	validateParentScopeMigrates(ValidatingMigrationInstruction instruction, ValidatingMigrationInstructions instructions, MigrationInstructionValidationReportImpl report)
  protected void	validateSingleInstruction(ValidatingMigrationInstruction instruction, ValidatingMigrationInstructions instructions, MigrationInstructionValidationReportImpl report)

  Methods inherited from class java.lang.Object

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

  Constructor Detail

  GatewayMappingValidator

  public GatewayMappingValidator()

  Method Detail

  validate

  public void validate(ValidatingMigrationInstruction instruction,
                       ValidatingMigrationInstructions instructions,
                       MigrationInstructionValidationReportImpl report)

  Description copied from interface: MigrationInstructionValidator

  Check that a migration instruction is valid for a migration plan. If it is invalid a failure has to added to the validation report.

  Specified by:

  validate in interface MigrationInstructionValidator

  Parameters:

  instruction - the instruction to validate

  instructions - the complete migration plan to validate

  report - the validation report

  validateIncomingSequenceFlows

  protected void validateIncomingSequenceFlows(ValidatingMigrationInstruction instruction,
                                               ValidatingMigrationInstructions instructions,
                                               MigrationInstructionValidationReportImpl report)

  validateParentScopeMigrates

  protected void validateParentScopeMigrates(ValidatingMigrationInstruction instruction,
                                             ValidatingMigrationInstructions instructions,
                                             MigrationInstructionValidationReportImpl report)

  validateSingleInstruction

  protected void validateSingleInstruction(ValidatingMigrationInstruction instruction,
                                           ValidatingMigrationInstructions instructions,
                                           MigrationInstructionValidationReportImpl report)

  isWaitStateGateway

  protected boolean isWaitStateGateway(ActivityImpl activity)