io.ebeaninternal.server.persist.dmlbind.BindableUnidirectional Maven / Gradle / Ivy
package io.ebeaninternal.server.persist.dmlbind;
import io.ebean.bean.EntityBean;
import io.ebeaninternal.server.core.PersistRequestBean;
import io.ebeaninternal.server.deploy.BeanDescriptor;
import io.ebeaninternal.server.deploy.BeanPropertyAssocOne;
import io.ebeaninternal.server.deploy.id.ImportedId;
import io.ebeaninternal.server.persist.dml.GenerateDmlRequest;
import jakarta.persistence.PersistenceException;
import java.sql.SQLException;
import java.util.List;
/**
* Bindable for a unidirectional relationship.
*
* This inserts the foreign key value that is retrieved from the id of the
* parentBean.
*/
public final class BindableUnidirectional implements Bindable {
private final BeanPropertyAssocOne unidirectional;
private final ImportedId importedId;
private final BeanDescriptor desc;
public BindableUnidirectional(BeanDescriptor desc, BeanPropertyAssocOne unidirectional) {
this.desc = desc;
this.unidirectional = unidirectional;
this.importedId = unidirectional.importedId();
}
@Override
public void addToUpdate(PersistRequestBean request, List list) {
throw new PersistenceException("Never called (for insert only)");
}
@Override
public void dmlAppend(GenerateDmlRequest request) {
// always included (in insert)
importedId.dmlAppend(request);
}
@Override
public void dmlBind(BindableRequest request, EntityBean bean) throws SQLException {
PersistRequestBean persistRequest = request.persistRequest();
Object parentBean = persistRequest.parentBean();
if (parentBean == null) {
Class localType = desc.type();
Class targetType = unidirectional.targetType();
String msg = "Error inserting bean [" + localType + "] with unidirectional relationship. ";
msg += "For inserts you must use cascade save on the master bean [" + targetType + "].";
throw new PersistenceException(msg);
}
importedId.bind(request, (EntityBean) parentBean);
}
}