[hibernate-issues] [Hibernate-JIRA] Created: (HHH-2488) Resolution of filters' conditions should be postponed till all mappings are loaded.
Resolution of filters' conditions should be postponed till all mappings are loaded.
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Key: HHH-2488
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2488
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.2.2
Environment: Hibernate-Version: 3.2.2.ga
Java(TM) SE Runtime Environment (build 1.6.0-b105)
Reporter: Dmitry Katsubo
When trying to use the possibility to define the conditions for the same filters in
{{<filter-def>}}, the following exception occurs, as the resolution of conditions
should be done at a later stage, after all mappings are loaded:
{noformat}
Exception in thread "main" java.lang.NullPointerException
at org.hibernate.cfg.HbmBinder.parseFilter(HbmBinder.java:2931)
at org.hibernate.cfg.HbmBinder.bindCollection(HbmBinder.java:1462)
at org.hibernate.cfg.HbmBinder$2.create(HbmBinder.java:2757)
{noformat}
The example of definition, that uses filters:
{code:xml|title=clauses.hbm.xml|borderStyle=solid}
<class name="ClauseFolderImpl" table="stc_folders">
<id name="id">
<generator class="native" />
</id>
<property name="name" not-null="true" />
<property name="private" not-null="true" />
<set name="subFolders" outer-join="false"
cascade="none">
<key column="parentId" />
<one-to-many class="ClauseFolderImpl" />
<filter name="folderFilterLimited" />
<filter name="folderFilter" />
</set>
<filter name="folderFilterLimited" />
<filter name="folderFilter" />
</class>
<filter-def name="folderFilterLimited" condition="(parentId is null or
(languageId = :languageId and procedureTypeId = :procedureTypeId))" >
<filter-param name="languageId" type="int" />
<filter-param name="procedureTypeId" type="int" />
</filter-def>
<filter-def name="folderFilter" condition="(parentId is null or private
= :isPrivate)">
<filter-param name="isPrivate" type="boolean" />
</filter-def>
{code}
As Hibernate ues DTD to check the validity of configuration file, the
{{<filter-def>}} definitions can't be moved to the beginning of the
configuration file. The possible walkaround is to define filters in another file, and
include it first:
{code:xml|title=hibernate-configuration.xml|borderStyle=solid}
<hibernate-configuration>
<session-factory>
...
<mapping resource="filters.hbm.xml"/> <!-- only
filter-def's here -->
<mapping resource="clauses.hbm.xml"/>
...
</session-factory>
</hibernate-configuration>
{code}
Relative issue is
[http://opensource.atlassian.com/projects/hibernate/browse/HHH-1182#action...
HHH-1182].
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