nl.b3p.viewer.config

Class RemoveEmptyMapValuesUtil

java.lang.Object

nl.b3p.viewer.config.RemoveEmptyMapValuesUtil

public class RemoveEmptyMapValuesUtil
extends Object

Author:

Matthijs Laan

Constructor Summary

Constructors

Constructor and Description
RemoveEmptyMapValuesUtil()

Method Summary

Modifier and Type	Method and Description
static void	removeEmptyMapValues(Map map) IMPORTANT TO CALL THIS BEFORE SAVING / UPDATING AN ENTITY WITH A DETAILS MAP.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RemoveEmptyMapValuesUtil

public RemoveEmptyMapValuesUtil()

Method Detail

removeEmptyMapValues

public static void removeEmptyMapValues(Map map)

IMPORTANT TO CALL THIS BEFORE SAVING / UPDATING AN ENTITY WITH A DETAILS MAP. Hibernate fails to remove map entries with a null value when calling clear() on a map on Oracle. This leads to duplicate key violations when updating layer details. @PreUpdate/@PrePersist nor @EntityListeners do not work consistenly with cascaded objects in Hibernate, so call this manually!

Parameters:

map - the map to clean up