org.flowable.engine.impl.variable

Class BpmnAggregation

java.lang.Object

org.flowable.engine.impl.variable.BpmnAggregation

public class BpmnAggregation
extends Object

Author:

Filip Hrisafov

Field Summary

Fields

Modifier and Type	Field and Description
static String	COUNTER_VAR_PREFIX
static String	COUNTER_VAR_VALUE_SEPARATOR
protected String	executionId

Constructor Summary

Constructors

Constructor and Description
BpmnAggregation(String executionId)

Method Summary

Modifier and Type	Method and Description
static VariableInstanceEntity	aggregate(DelegateExecution execution, DelegateExecution parentExecution, VariableAggregatorContext aggregationContext, ProcessEngineConfigurationImpl processEngineConfiguration) Create an aggregated variable instance for the given aggregation context.
static VariableInstanceEntity	aggregate(DelegateExecution execution, DelegateExecution parentExecution, VariableAggregatorContext aggregationContext, ProcessEngineConfigurationImpl processEngineConfiguration, VariableAggregator aggregator, String targetVarName)
static VariableInstanceEntity	aggregateComplete(DelegateExecution execution, DelegateExecution parentExecution, VariableAggregationDefinition aggregation, ProcessEngineConfigurationImpl processEngineConfiguration) Create an aggregated variable instance for a completed execution.
static Object	aggregateOverview(String parentExecutionId, String targetVarName, CommandContext commandContext) Aggregate an overview value for the execution and variable name
static Object	aggregateOverviewForMultiInstance(ExecutionEntity parentExecution, String targetVarName, ProcessEngineConfigurationImpl processEngineConfiguration) Create an overview value for a multi instance execution
static VariableInstanceEntity	createScopedVariableAggregationVariableInstance(String varName, String scopeId, String subScopeId, Object value, VariableServiceConfiguration variableServiceConfiguration)
static String	getAggregationTargetVarName(VariableAggregationDefinition aggregation, DelegateExecution execution, ProcessEngineConfigurationImpl processEngineConfiguration)
String	getExecutionId()
static Map<String,VariableAggregationDefinition>	groupAggregationsByTarget(DelegateExecution multiInstanceRootExecution, Collection<VariableAggregationDefinition> aggregations, ProcessEngineConfigurationImpl processEngineConfiguration)
static Map<String,List<VariableInstance>>	groupVariableInstancesByName(List<? extends VariableInstance> instances)
static VariableAggregator	resolveVariableAggregator(VariableAggregationDefinition aggregation, DelegateExecution execution)
static void	sortVariablesByCounter(List<VariableInstance> variableInstances, List<VariableInstance> counterVariableInstances)

Methods inherited from class java.lang.Object

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

Field Detail

COUNTER_VAR_PREFIX

public static final String COUNTER_VAR_PREFIX

See Also:

Constant Field Values

COUNTER_VAR_VALUE_SEPARATOR

public static final String COUNTER_VAR_VALUE_SEPARATOR

See Also:

Constant Field Values

executionId

protected final String executionId

Constructor Detail

BpmnAggregation

public BpmnAggregation(String executionId)

Method Detail

getExecutionId

public String getExecutionId()

aggregateComplete

public static VariableInstanceEntity aggregateComplete(DelegateExecution execution,
                                                       DelegateExecution parentExecution,
                                                       VariableAggregationDefinition aggregation,
                                                       ProcessEngineConfigurationImpl processEngineConfiguration)

Create an aggregated variable instance for a completed execution.

Parameters:

execution - the execution which completed

parentExecution - the parent execution

aggregation - the aggregation definition

processEngineConfiguration - the process engine configuration

Returns:

the created variables (not yet saved), or null if no name could be resolved for the variable

aggregate

public static VariableInstanceEntity aggregate(DelegateExecution execution,
                                               DelegateExecution parentExecution,
                                               VariableAggregatorContext aggregationContext,
                                               ProcessEngineConfigurationImpl processEngineConfiguration)

Create an aggregated variable instance for the given aggregation context.

Parameters:

execution - the execution

parentExecution - the parent execution

aggregationContext - the aggregation context

processEngineConfiguration - the process engine configuration

Returns:

the created variables (not yet saved), or null if no name could be resolved for the variable

aggregate

public static VariableInstanceEntity aggregate(DelegateExecution execution,
                                               DelegateExecution parentExecution,
                                               VariableAggregatorContext aggregationContext,
                                               ProcessEngineConfigurationImpl processEngineConfiguration,
                                               VariableAggregator aggregator,
                                               String targetVarName)

Parameters:

execution - the execution

parentExecution - the parent execution

aggregationContext - the aggregation context

processEngineConfiguration - the process engine configuration

aggregator - the aggregator that should be used to perform the aggregation

targetVarName - the name of the variable, never null

Returns:

the created variables (not yet saved), or null if no name could be resolved for the variable

aggregateOverview

public static Object aggregateOverview(String parentExecutionId,
                                       String targetVarName,
                                       CommandContext commandContext)

Aggregate an overview value for the execution and variable name

Parameters:

parentExecutionId - the execution for which the overview needs to be done

targetVarName - the name of the variable

Returns:

the aggregated variable value

aggregateOverviewForMultiInstance

public static Object aggregateOverviewForMultiInstance(ExecutionEntity parentExecution,
                                                       String targetVarName,
                                                       ProcessEngineConfigurationImpl processEngineConfiguration)

Create an overview value for a multi instance execution

Parameters:

parentExecution - the multi instance root execution

targetVarName - the name of the variable

processEngineConfiguration - the process engine configuration

Returns:

the overview value for the multi instance execution

createScopedVariableAggregationVariableInstance

public static VariableInstanceEntity createScopedVariableAggregationVariableInstance(String varName,
                                                                                     String scopeId,
                                                                                     String subScopeId,
                                                                                     Object value,
                                                                                     VariableServiceConfiguration variableServiceConfiguration)

groupVariableInstancesByName

public static Map<String,List<VariableInstance>> groupVariableInstancesByName(List<? extends VariableInstance> instances)

resolveVariableAggregator

public static VariableAggregator resolveVariableAggregator(VariableAggregationDefinition aggregation,
                                                           DelegateExecution execution)

sortVariablesByCounter

public static void sortVariablesByCounter(List<VariableInstance> variableInstances,
                                          List<VariableInstance> counterVariableInstances)

groupAggregationsByTarget

public static Map<String,VariableAggregationDefinition> groupAggregationsByTarget(DelegateExecution multiInstanceRootExecution,
                                                                                  Collection<VariableAggregationDefinition> aggregations,
                                                                                  ProcessEngineConfigurationImpl processEngineConfiguration)

getAggregationTargetVarName

public static String getAggregationTargetVarName(VariableAggregationDefinition aggregation,
                                                 DelegateExecution execution,
                                                 ProcessEngineConfigurationImpl processEngineConfiguration)