1.4. Creating ApprovalHelper Bean

The updateState() method of the ApprovalHelper bean will be invoked from the contract approval process for setting a contract state.

Method parameters:

  • entityId - contract entity identifier

  • state - contract state

Open the project in an IDE. Create ApprovalHelper class in the com.company.bpmdemo.core package.

ApprovalHelperProjectTree
Figure 7. ApprovalHelper Project Tree 
package com.company.bpmdemo.core;

import org.springframework.stereotype.Component;
import com.company.bpmdemo.entity.Contract;
import com.haulmont.cuba.core.Persistence;
import com.haulmont.cuba.core.Transaction;

import javax.inject.Inject;
import java.util.UUID;

@Component("demo_ApprovalHelper")
public class ApprovalHelper {

    @Inject
    private Persistence persistence;

    public void updateState(UUID entityId, String state) {
        try (Transaction tx = persistence.getTransaction()) {
            Contract contract = persistence.getEntityManager().find(Contract.class, entityId);
            if (contract != null) {
                contract.setState(state);
            }
            tx.commit();
        }
    }
}