Package org.flowable.cmmn.engine.impl.variable

Class CmmnAggregation

java.lang.Object

org.flowable.cmmn.engine.impl.variable.CmmnAggregation

public class CmmnAggregation
extends Object

Author:

Filip Hrisafov

Field Summary

Fields

Modifier and Type	Field	Description
static final String	COUNTER_VAR_PREFIX
static final String	COUNTER_VAR_VALUE_SEPARATOR
protected final String	planItemInstanceId

Constructor Summary

Constructors

Constructor	Description
CmmnAggregation(String planItemInstanceId)

Method Summary

Modifier and Type	Method	Description
static VariableInstanceEntity	aggregate(DelegatePlanItemInstance planItemInstance, PlanItemVariableAggregatorContext aggregationContext, CmmnEngineConfiguration cmmnEngineConfiguration)	Create an aggregated variable instance for the given aggregation context.
static VariableInstanceEntity	aggregate(DelegatePlanItemInstance planItemInstance, PlanItemVariableAggregatorContext aggregationContext, CmmnEngineConfiguration cmmnEngineConfiguration, PlanItemVariableAggregator aggregator, String targetVarName)
static VariableInstanceEntity	aggregateComplete(DelegatePlanItemInstance planItemInstance, VariableAggregationDefinition aggregation, CmmnEngineConfiguration cmmnEngineConfiguration)	Create an aggregated variable instance for a completed plan item.
static Object	aggregateOverview(String parentScopeId, String targetVarName, CommandContext commandContext)	Aggregate an overview value for the scope and variable name
static Object	aggregateOverviewForRepetition(PlanItemInstanceEntity planItemInstance, RepetitionRule repetitionRule, String targetVarName, CmmnEngineConfiguration cmmnEngineConfiguration)	Create an overview value for a repetition plan item
static VariableInstanceEntity	createScopedVariableAggregationVariableInstance(String tenantId, String varName, String scopeId, String subScopeId, Object value, VariableServiceConfiguration variableServiceConfiguration)
static String	getAggregationTargetVarName(VariableAggregationDefinition aggregation, VariableScope parentScope, CmmnEngineConfiguration cmmnEngineConfiguration)
String	getPlanItemInstanceId()
static Map<String,VariableAggregationDefinition>	groupAggregationsByTarget(VariableScope scope, Collection<VariableAggregationDefinition> aggregations, CmmnEngineConfiguration cmmnEngineConfiguration)
static Map<String,List<VariableInstance>>	groupVariableInstancesByName(List<? extends VariableInstance> instances)
static PlanItemVariableAggregator	resolveVariableAggregator(VariableAggregationDefinition aggregation, DelegatePlanItemInstance planItemInstance)
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 Details

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

planItemInstanceId

protected final String planItemInstanceId

Constructor Details

CmmnAggregation

public CmmnAggregation(String planItemInstanceId)

Method Details

getPlanItemInstanceId

public String getPlanItemInstanceId()

aggregateComplete

public static VariableInstanceEntity aggregateComplete(DelegatePlanItemInstance planItemInstance,
 VariableAggregationDefinition aggregation,
 CmmnEngineConfiguration cmmnEngineConfiguration)

Create an aggregated variable instance for a completed plan item.

Parameters:

planItemInstance - the planItemInstance which completed

aggregation - the aggregation definition

cmmnEngineConfiguration - the cmmn 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(DelegatePlanItemInstance planItemInstance,
 PlanItemVariableAggregatorContext aggregationContext,
 CmmnEngineConfiguration cmmnEngineConfiguration)

Create an aggregated variable instance for the given aggregation context.

Parameters:

planItemInstance - the planItemInstance

aggregationContext - the aggregation context

cmmnEngineConfiguration - the cmmn 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(DelegatePlanItemInstance planItemInstance,
 PlanItemVariableAggregatorContext aggregationContext,
 CmmnEngineConfiguration cmmnEngineConfiguration,
 PlanItemVariableAggregator aggregator,
 String targetVarName)

Parameters:

planItemInstance - the planItemInstance

aggregationContext - the aggregation context

cmmnEngineConfiguration - the cmmn 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 parentScopeId,
 String targetVarName,
 CommandContext commandContext)

Aggregate an overview value for the scope and variable name

Parameters:

parentScopeId - the id of the scope for which the overview needs to be done

targetVarName - the name of the variable

Returns:

the aggregated variable value

aggregateOverviewForRepetition

public static Object aggregateOverviewForRepetition(PlanItemInstanceEntity planItemInstance,
 RepetitionRule repetitionRule,
 String targetVarName,
 CmmnEngineConfiguration cmmnEngineConfiguration)

Create an overview value for a repetition plan item

Parameters:

planItemInstance - one of the repetition plan item instances

targetVarName - the name of the variable

cmmnEngineConfiguration - the cmmn engine configuration

Returns:

the overview value for repetition plan items

createScopedVariableAggregationVariableInstance

public static VariableInstanceEntity createScopedVariableAggregationVariableInstance(String tenantId,
 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 PlanItemVariableAggregator resolveVariableAggregator(VariableAggregationDefinition aggregation,
 DelegatePlanItemInstance planItemInstance)

sortVariablesByCounter

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

groupAggregationsByTarget

public static Map<String,VariableAggregationDefinition> groupAggregationsByTarget(VariableScope scope,
 Collection<VariableAggregationDefinition> aggregations,
 CmmnEngineConfiguration cmmnEngineConfiguration)

getAggregationTargetVarName

public static String getAggregationTargetVarName(VariableAggregationDefinition aggregation,
 VariableScope parentScope,
 CmmnEngineConfiguration cmmnEngineConfiguration)