Package org.flowable.cmmn.engine.impl.util

Class ExpressionUtil

java.lang.Object
org.flowable.cmmn.engine.impl.util.ExpressionUtil
public class ExpressionUtil extends Object
Author:
Joram Barrez, Micha Kiener

  • Constructor Details

    • ExpressionUtil

      public ExpressionUtil()

  • Method Details

    • evaluateBooleanExpression

      public static boolean evaluateBooleanExpression(CommandContext commandContext, VariableContainer variableContainer, String condition)

    • evaluateExpression

      public static Object evaluateExpression(CommandContext commandContext, VariableContainer variableContainer, String expression)

    • isRequiredPlanItemInstance

      public static boolean isRequiredPlanItemInstance(CommandContext commandContext, PlanItemInstanceEntity planItemInstanceEntity)

    • hasOnParts

      public static boolean hasOnParts(PlanItem planItem)
      Checks the given plan item to have at least one on-part.
      Parameters:
      planItem - the plan item to check for an on-part
      Returns:
      true, if there is at least one on-part, false otherwise

    • hasRepetitionRule

      public static boolean hasRepetitionRule(PlanItemInstanceEntity planItemInstanceEntity)

    • hasRepetitionRule

      public static boolean hasRepetitionRule(PlanItem planItem)

    • getRepetitionRule

      public static RepetitionRule getRepetitionRule(PlanItemInstanceEntity planItemInstanceEntity)
      Returns the repetition rule, if the given plan item instance has one, null otherwise.
      Parameters:
      planItemInstanceEntity - the plan item instance to check for a repetition rule
      Returns:
      the repetition rule of the plan item, if available, null otherwise

    • hasRepetitionOnCollection

      public static boolean hasRepetitionOnCollection(PlanItemInstanceEntity planItemInstanceEntity)
      Returns true, if the given plan item instance has a repetition rule which is based on a collection variable, false, if there is no repetition rule at all or if it is not based on a collection variable.
      Parameters:
      planItemInstanceEntity - the plan item instance to check for a repetition rule based on a collection
      Returns:
      true, if the plan item has a repetition rule based on a collection variable

    • hasRepetitionOnCollection

      public static boolean hasRepetitionOnCollection(PlanItem planItem)
      Returns true, if the given plan item instance has a repetition rule which is based on a collection variable, false, if there is no repetition rule at all or if it is not based on a collection variable.
      Parameters:
      planItem - the plan item to check for a repetition rule based on a collection
      Returns:
      true, if the plan item has a repetition rule based on a collection variable

    • evaluateRepetitionCollectionVariableValue

      public static Iterable<Object> evaluateRepetitionCollectionVariableValue(CommandContext commandContext, PlanItemInstanceEntity planItemInstanceEntity)
      Evaluates the collection variable name or expression given by the plan items repetition rule and returns its evaluated collection as a list.
      Parameters:
      commandContext - the command context to be used for evaluating the expression
      planItemInstanceEntity - the plan item instance to evaluate the collection variable given by its repetition rule
      Returns:
      the collection variable value as a list of objects, might be null, if there is no repetition rule or no collection or the variable or expression evaluates to null

    • evaluateRepetitionRule

      public static boolean evaluateRepetitionRule(CommandContext commandContext, PlanItemInstanceEntity planItemInstanceEntity, PlanItemInstanceContainer planItemInstanceContainer)
      Returns true, if: the given plan item instance has a repetition rule at all and if so, if it has a condition witch is satisfied and all in combination with the optional max instance count attribute. If the repetition rule evaluates to true, this normally means that there should be an additional instance of the plan item created.
      Parameters:
      commandContext - the command context in which this evaluation is taking place
      planItemInstanceEntity - the plan item instance entity to test for a repetition rule to evaluate to true
      planItemInstanceContainer - the container (usually the parent stage of the plan item instance) to get access to child plan items
      Returns:
      true, if there is a repetition rule of the plan item instance currently evaluating to true with all of its conditions and attributes

    • searchNonFinishedEqualPlanItemInstances

      public static List<PlanItemInstance> searchNonFinishedEqualPlanItemInstances(PlanItemInstanceEntity planItemInstanceEntity, PlanItemInstanceContainer planItemInstanceContainer)
      Searches for non-finished plan item instances within the given container to be of the same plan item as the given instance.
      Parameters:
      planItemInstanceEntity - the plan item instance to search for instances of the same plan item within the container
      planItemInstanceContainer - the container to search for child plan item instances of the same plan item
      Returns:
      the list of equal plan item instances, might be empty, but never null

    • evaluateRepetitionRule

      public static boolean evaluateRepetitionRule(CommandContext commandContext, VariableContainer variableContainer, String repetitionCondition)

    • isCompletionNeutralPlanItemInstance

      public static boolean isCompletionNeutralPlanItemInstance(PlanItemInstanceEntity planItemInstanceEntity)

    • isCompletionNeutralPlanItemInstance

      public static boolean isCompletionNeutralPlanItemInstance(CommandContext commandContext, PlanItemInstanceEntity planItemInstanceEntity)

    • evaluateAutoComplete

      public static boolean evaluateAutoComplete(CommandContext commandContext, VariableContainer variableContainer, Stage stage)
      Returns true, if the given stage has an auto-complete condition which evaluates to true or if not, is in auto-complete mode permanently.
      Parameters:
      commandContext - the command context in which the method is invoked
      variableContainer - the variable container (most likely the plan item representing the stage or case plan model) used to evaluate the condition against
      stage - the stage model object to get its auto-complete condition from
      Returns:
      true, if the stage is in auto-complete, either statically or if the condition evaluates to true