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/*
 * Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. Camunda licenses this file to you under the Apache License,
 * Version 2.0; you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.camunda.bpm.engine.impl.cfg.multitenancy;

import org.camunda.bpm.engine.impl.cfg.ProcessEngineConfigurationImpl;

/**
 * SPI which can be implemented to assign tenant ids to process instances, case instances and historic decision instances.
 *

* The SPI is invoked if the process definition, case definition or decision definition does not have a tenant id or * execution does not have a tenant id. *

* An implementation of this SPI can be set on the {@link ProcessEngineConfigurationImpl}. * * @author Daniel Meyer * @since 7.5 */ public interface TenantIdProvider { /** * Invoked when a process instance is started and the Process Definition does not have a tenant id. *

* Implementors can either return a tenant id or null. If null is returned the process instance is not assigned a tenant id. * * @param ctx holds information about the process instance which is about to be started. * @return a tenant id or null if case the implementation does not assign a tenant id to the process instance */ String provideTenantIdForProcessInstance(TenantIdProviderProcessInstanceContext ctx); /** * Invoked when a case instance is started and the Case Definition does not have a tenant id. *

* Implementors can either return a tenant id or null. If null is returned the case instance is not assigned a tenant id. * * @param ctx holds information about the case instance which is about to be started. * @return a tenant id or null if case the implementation does not assign a tenant id to case process instance */ String provideTenantIdForCaseInstance(TenantIdProviderCaseInstanceContext ctx); /** * Invoked when a historic decision instance is created and the Decision Definition or the Execution does not have a tenant id. *

* Implementors can either return a tenant id or null. If null is returned the historic decision instance is not assigned a tenant id. * * @param ctx holds information about the decision definition and the execution. * @return a tenant id or null if case the implementation does not assign a tenant id to the historic decision instance */ String provideTenantIdForHistoricDecisionInstance(TenantIdProviderHistoricDecisionInstanceContext ctx); }





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