How to use

getMappingContext

method

in

org.grails.datastore.mapping.model.PersistentEntity

private Serializable findInstanceId(Object value) {
  MappingContext ctx = entity.getMappingContext();
  PersistentEntity pe = ctx.getPersistentEntity(value.getClass().getName());
  return ctx.getEntityReflector(pe).getIdentifier(value);
}

  @Override
  public void convertArguments(PersistentEntity persistentEntity) {
    ConversionService conversionService = persistentEntity
        .getMappingContext().getConversionService();
    String propertyName = this.propertyName;
    PersistentProperty<?> prop = persistentEntity
        .getPropertyByName(propertyName);
    Object[] arguments = this.arguments;
    convertArgumentsForProp(persistentEntity, prop, propertyName, arguments, conversionService);
  }
}

@Override
public void convertArguments(PersistentEntity persistentEntity) {
  ConversionService conversionService = persistentEntity
      .getMappingContext().getConversionService();
  PersistentProperty<?> prop = persistentEntity
      .getPropertyByName(propertyName);
  convertArgumentsForProp(persistentEntity, prop, propertyName, arguments, conversionService);
}

public void convertArguments(PersistentEntity persistentEntity) {
  ConversionService conversionService = persistentEntity
      .getMappingContext().getConversionService();
  PersistentProperty<?> prop = persistentEntity
      .getPropertyByName(propertyName);

protected Object resolveIdIfEntity(Object value) {
  // use the object id as the value if its a persistent entity
  MappingContext mappingContext = entity.getMappingContext();
  if (mappingContext.getProxyFactory().isProxy(value)) {
    return mappingContext.getProxyFactory().getIdentifier(value);
  }
  return mappingContext.isPersistentEntity(value) ? findInstanceId(value) : value;
}

final ConversionService conversionService = query.getEntity().getMappingContext().getConversionService();
if (argMap.containsKey(ARGUMENT_MAX)) {
  maxParam = conversionService.convert(argMap.get(ARGUMENT_MAX), Integer.class);