public <R> R copyPropertiesFrom(
final BeanWrapper<Neo4jPersistentEntity<R>, R> wrapper,
S source,
Neo4jPersistentEntity<R> persistentEntity,
final MappingPolicy mappingPolicy,
final Neo4jTemplate template) {
final R entity = wrapper.getBean();
final EntityState<S> entityState = entityStateFactory.getEntityState(entity, false, template);
entityState.setPersistentState(source);
persistentEntity.doWithProperties(
new PropertyHandler<Neo4jPersistentProperty>() {
@Override
public void doWithPersistentProperty(Neo4jPersistentProperty property) {
copyEntityStatePropertyValue(
property, entityState, wrapper, property.getMappingPolicy()); // TODO intelligent
// mappingPolicy.combineWith(property.getMappingPolicy())
}
});
persistentEntity.doWithAssociations(
new AssociationHandler<Neo4jPersistentProperty>() {
@Override
public void doWithAssociation(Association<Neo4jPersistentProperty> association) {
final Neo4jPersistentProperty property = association.getInverse();
copyEntityStatePropertyValue(
property, entityState, wrapper, property.getMappingPolicy()); // TODO intelligent
// mappingPolicy.combineWith(property.getMappingPolicy())
}
});
return entity;
}
public <R> void copyPropertiesTo(
final BeanWrapper<Neo4jPersistentEntity<R>, R> wrapper,
S target,
Neo4jPersistentEntity<R> persistentEntity,
MappingPolicy mappingPolicy,
final Neo4jTemplate template) {
final Transaction tx = template.getGraphDatabase().beginTx();
try {
final EntityState<S> entityState =
entityStateFactory.getEntityState(wrapper.getBean(), false, template);
entityState.setPersistentState(target);
entityState.persist();
// todo take mapping policies for attributes into account
persistentEntity.doWithProperties(
new PropertyHandler<Neo4jPersistentProperty>() {
@Override
public void doWithPersistentProperty(Neo4jPersistentProperty property) {
setEntityStateValue(property, entityState, wrapper, property.getMappingPolicy());
}
});
// todo take mapping policies for relationships into account
persistentEntity.doWithAssociations(
new AssociationHandler<Neo4jPersistentProperty>() {
@Override
public void doWithAssociation(Association<Neo4jPersistentProperty> association) {
final Neo4jPersistentProperty property = association.getInverse();
setEntityStateValue(property, entityState, wrapper, property.getMappingPolicy());
}
});
tx.success();
} catch (Throwable t) {
tx.failure();
if (t instanceof Error) throw (Error) t;
if (t instanceof RuntimeException) throw (RuntimeException) t;
throw new org.springframework.data.neo4j.core.UncategorizedGraphStoreException(
"Error copying properties from " + persistentEntity + " to " + target, t);
} finally {
tx.close();
}
}