[JBoss Tools] - Getting "association error" when reverse-engineering an existing schema with Hibernate tools
11:09 p.m.
John Citizen [https://community.jboss.org/people/johnqcitizen] created the discussion
"Getting "association error" when reverse-engineering an existing schema
with Hibernate tools"
To view the discussion, visit: https://community.jboss.org/message/801484#801484
--------------------------------------------------------------
I'm connecting to a production Oracle 10g database and attempting to generate a
Hibernate configuration file using the hibernate3-maven-plugin running in Maven.
However when I run the hibernate3:hbm2java goal I get the following error: An association
from the table FOO refers to the unmapped class com.whatever.domain.Bar
My maven project file looks like this:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>hibernate3-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<components>
<component>
<name>hbm2java</name>
<implementation>jdbcconfiguration</implementation>
<outputDirectory>target/classes</outputDirectory>
</component>
</components>
<componentProperties>
<propertyfile>src/main/resources/hibernate.properties</propertyfile>
</componentProperties>
</configuration>
<dependencies>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc</artifactId>
<version>11.1.0.6.0</version>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib-nodep</artifactId>
<version>2.1_3</version>
</dependency>
</dependencies>
</plugin>
My *hibernate.properties* file contains the following:
hibernate.connection.driver_class=oracle.jdbc.driver.OracleDriver
hibernate.connection.url=jdbc:oracle:thin:@<server>:<host>:<db>
hibernate.connection.username=<username>
hibernate.connection.password=<password>
hibernate.dialect=org.hibernate.dialect.Oracle10gDialect
hibernate.default_schema=<schema>
Because this is a production database, then I assume that the schema is sound and expect
the *hibernate3-maven-plugin* to extract that schema and generate annotated java files
without error.
I've narrowed down the offending tables to the following:
* FOO*
- foreign key 'a' in BAR
- foreign key 'b' in BAR
- foreign key 'c' in QUUX
- primary key is composite of foreign keys 'a', 'b' in BAR and foreign
key 'c' in QUUX
* BAR*
- foreign key 'a' in BAZ
- foreign key 'b' in QUX
- primary key is a composite of the foreign key 'a' in BAZ and foreign key
'b' in QUX
* BAZ*
- primary key 'a'
- no foreign keys
* QUX*
- primary key 'b'
- no foreign keys
* QUUX*
- primary key 'c'
- no foreign keys
If I specify the tables FOO, BAR and BAZ in a *reveng.xml* file, then the *hbm2java* goal
is successful. If I specify the tables FOO, BAR, and QUX in a *reveng.xml* file, then the
*hbm2java* goal is successful. But if tables FOO, BAR, BAZ, and QUX are specified then the
*hbm2java* goal fails with the aforementoned association error between FOO and
com.whatever.domain.Bar file. That is, if both tables representing the foreign keys in BAR
are present, then the goal fails. If just one foreign key table is present, then the goal
succeeds.
Any suggestions on what is causing the problem, and how to fix it?
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4:14 a.m.
New subject: [JBoss Tools] - Re: Getting "association error" when reverse-engineering an existing schema with Hibernate tools
Max Rydahl Andersen [https://community.jboss.org/people/maxandersen] created the
discussion
"Re: Getting "association error" when reverse-engineering an existing
schema with Hibernate tools"
To view the discussion, visit: https://community.jboss.org/message/801518#801518
--------------------------------------------------------------
Could you show the actual error/stacktrace ?
p.s. the hbm2java maven goals are not maintained by us; thus could you please tell what
version of hibernate tools it is actually using ?
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6:50 p.m.
New subject: [JBoss Tools] - Re: Getting "association error" when reverse-engineering an existing schema with Hibernate tools
John Citizen [https://community.jboss.org/people/johnqcitizen] created the discussion
"Re: Getting "association error" when reverse-engineering an existing
schema with Hibernate tools"
To view the discussion, visit: https://community.jboss.org/message/801784#801784
--------------------------------------------------------------
Thanks for the response.
I am using *maven-hibernate3-plugin 2.2*, which has a dependency on *hibernate-tools
3.2.3.GA* and *hibernate-core 3.3.1.GA*
Here is some output from running the following command:
$ *mvn -X hibernate3:hbm2java*
Apache Maven 3.0.4 (r1232337; 2012-01-17 18:44:56+1000)
Maven home: C:\dev\apache-maven-3.0.4\bin\..
Java version: 1.6.0_38, vendor: Sun Microsystems Inc.
OS name: "windows xp", version: "5.1", arch: "x86", family:
"windows"
[INFO] --- hibernate3-maven-plugin:2.2:hbm2java (default-cli) @ foo ---
[DEBUG] *org.codehaus.mojo:hibernate3-maven-plugin:jar:2.2*:
[DEBUG] cglib:cglib-nodep:jar:2.2.2:runtime
[DEBUG] com.oracle:ojdbc:jar:11.1.0.6.0:runtime
[DEBUG] log4j:log4j:jar:1.2.14:runtime
[DEBUG] *org.hibernate:hibernate-tools:jar:3.2.3.GA:compile*
[DEBUG] org.beanshell:bsh:jar:2.0b4:compile
[DEBUG] freemarker:freemarker:jar:2.3.8:compile
[DEBUG] org.hibernate:jtidy:jar:r8-20060801:compile
[DEBUG] *org.hibernate:hibernate-core:jar:3.3.1.GA:compile*
[DEBUG] antlr:antlr:jar:2.7.6:compile
[DEBUG] commons-collections:commons-collections:jar:3.1:compile
[DEBUG] dom4j:dom4j:jar:1.6.1:compile
[DEBUG] org.slf4j:slf4j-api:jar:1.5.6:runtime (scope managed from compile) (version
managed from 1.5.2)
[DEBUG] *org.codehaus.mojo.hibernate3:maven-hibernate3-api:jar:2.2:compile*
[DEBUG] xml-apis:xml-apis:jar:1.0.b2:compile
[DEBUG] org.apache.geronimo.specs:geronimo-jta_1.0.1B_spec:jar:1.1.1:runtime
[DEBUG] org.slf4j:slf4j-log4j12:jar:1.5.6:runtime
[DEBUG] org.slf4j:jcl-over-slf4j:jar:1.5.6:runtime
[DEBUG] org.codehaus.plexus:plexus-utils:jar:1.5.6:compile
[DEBUG] org.apache.maven:maven-model:jar:2.0.6:compile
[DEBUG] org.apache.maven:maven-project:jar:2.0.6:compile
[DEBUG] org.apache.maven:maven-settings:jar:2.0.6:compile
[DEBUG] org.apache.maven:maven-profile:jar:2.0.6:compile
[DEBUG] org.apache.maven:maven-artifact-manager:jar:2.0.6:compile
[DEBUG] org.apache.maven:maven-repository-metadata:jar:2.0.6:compile
[DEBUG] org.apache.maven:maven-plugin-registry:jar:2.0.6:compile
[DEBUG] org.apache.maven:maven-artifact:jar:2.0.6:compile
[DEBUG]
org.codehaus.plexus:plexus-container-default:jar:1.0-alpha-9-stable-1:compile
[DEBUG] junit:junit:jar:3.8.2:test (scope managed from compile) (version managed
from 3.8.1)
[DEBUG] classworlds:classworlds:jar:1.1-alpha-2:compile
[DEBUG] org.apache.maven:maven-plugin-api:jar:2.0.6:compile
[DEBUG] org.codehaus.mojo.hibernate3:maven-hibernate3-jdk14:jar:2.2:compile
[DEBUG] org.codehaus.mojo.hibernate3:maven-hibernate3-jdk15:jar:2.2:compile
[DEBUG] *org.hibernate:hibernate-entitymanager:jar:3.4.0.GA:compile*
[DEBUG] *org.hibernate:hibernate-commons-annotations:jar:3.1.0.GA:compile*
[DEBUG] javax.transaction:jta:jar:1.1:compile
[DEBUG] *org.hibernate:ejb3-persistence:jar:1.0.2.GA:compile*
[DEBUG] *org.hibernate:hibernate-annotations:jar:3.4.0.GA:compile*
[DEBUG] jboss:jboss-common:jar:4.0.2:compile
[DEBUG] slide:webdavlib:jar:2.0:compile
[DEBUG] xerces:xercesImpl:jar:2.6.2:compile
[DEBUG] javassist:javassist:jar:3.4.GA:compile
[DEBUG] Goal: *org.codehaus.mojo:hibernate3-maven-plugin:2.2:hbm2java
(default-cli)*
[DEBUG] Style: Regular
[DEBUG] Configuration: <?xml version="1.0" encoding="UTF-8"?>
<configuration>
<componentProperties>
<revengfile>/src/main/resources/reveng.xml</revengfile>
<propertyfile>src/main/resources/hibernate.properties</propertyfile>
<packagename>com.whatever.domain</packagename>
<jdk5>true</jdk5>
<ejb3>true</ejb3>
</componentProperties>
<components>
<component>
<name>hbm2java</name>
<implementation>jdbcconfiguration</implementation>
<outputDirectory>target/generated-sources/hibernate3</outputDirectory>
</component>
</components>
</configuration>
[DEBUG] =======================================================================
[INFO]
[INFO] >>> hibernate3-maven-plugin:2.2:hbm2java (default-cli) @ foo >>>
09:06:58,296 DEBUG DriverManagerConnectionProvider:138 - created connection to:
jdbc:oracle:thin:@***, Isolation Level: 2
09:06:58,296 INFO SettingsFactory:116 - *RDBMS: Oracle, version: Oracle Database
10g Enterprise Edition Release 10.2.0.3.0 - Production*
With the Partitioning, OLAP and Data Mining options
09:06:58,296 INFO SettingsFactory:117 - *JDBC driver: Oracle JDBC driver, version:
11.1.0.6.0-Production*
09:06:58,312 INFO Dialect:175 - Using dialect:
org.hibernate.dialect.Oracle10gDialect
09:06:58,328 INFO TransactionFactoryFactory:59 - Using default transaction
strategy (direct JDBC transactions)
09:06:58,343 INFO SettingsFactory:170 - Automatic flush during beforeCompletion():
disabled
09:06:58,343 INFO SettingsFactory:174 - Automatic session close at end of
transaction: disabled
09:06:58,343 INFO SettingsFactory:181 - JDBC batch size: 15
09:06:58,343 INFO SettingsFactory:184 - JDBC batch updates for versioned data:
disabled
09:06:58,343 INFO SettingsFactory:189 - Scrollable result sets: enabled
09:06:58,343 DEBUG SettingsFactory:193 - Wrap result sets: disabled
09:06:58,343 INFO SettingsFactory:197 - JDBC3 getGeneratedKeys(): disabled
09:06:58,343 INFO SettingsFactory:205 - Connection release mode: auto
09:06:58,343 INFO SettingsFactory:223 - Default schema: RAPS
09:06:58,343 INFO SettingsFactory:232 - Default batch fetch size: 1
[ERROR] *Failed to execute goal org.codehaus.mojo:hibernate3-maven-plugin:2.2:hbm2java
(default-cli)* on project foo: Execution default-cli of goal
org.codehaus.mojo:hibernate3-maven-plugin:2.2:hbm2java failed: *An association from the
table FOO refers to an unmapped class: com.whatever.domain.Bar* -> [Help 1]
Caused by: *org.hibernate.MappingException: An association from the table FOO refers to an
unmapped class: com.whatever.domain.Bar*
at
org.hibernate.cfg.Configuration.secondPassCompileForeignKeys(Configuration.java:1285)
at
org.hibernate.cfg.JDBCMetaDataConfiguration.secondPassCompileForeignKeys(JDBCMetaDataConfiguration.java:33)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1203)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1148)
at
org.codehaus.mojo.hibernate3.configuration.AbstractComponentConfiguration.getConfiguration(AbstractComponentConfiguration.java:57)
at
org.codehaus.mojo.hibernate3.HibernateExporterMojo.configureExporter(HibernateExporterMojo.java:200)
at
org.codehaus.mojo.hibernate3.exporter.Hbm2JavaGeneratorMojo.configureExporter(Hbm2JavaGeneratorMojo.java:64)
at
org.codehaus.mojo.hibernate3.HibernateExporterMojo.doExecute(HibernateExporterMojo.java:273)
at
org.codehaus.mojo.hibernate3.HibernateExporterMojo.execute(HibernateExporterMojo.java:152)
at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
... 20 more
I am using the following hibernate configuration:
hibernate.connection.driver_class=*oracle.jdbc.driver.OracleDriver*
hibernate.connection.url=*jdbc:oracle:thin:@*****
hibernate.connection.username=****
hibernate.connection.password=****
hibernate.dialect=*org.hibernate.dialect.Oracle10gDialect*
hibernate.default_schema=*MY_SCHEMA*
and the following reverse enginerring file:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-reverse-engineering PUBLIC
"-//Hibernate/Hibernate Reverse Engineering DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-reverse-engineering-3.0.dtd" >
<hibernate-reverse-engineering>
<schema-selection match-schema="*MY_SCHEMA*" />
</hibernate-reverse-engineering>
Hope that helps.
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1:29 a.m.
New subject: [JBoss Tools] - Re: Getting "association error" when reverse-engineering an existing schema with Hibernate tools
John Citizen [https://community.jboss.org/people/johnqcitizen] created the discussion
"Re: Getting "association error" when reverse-engineering an existing
schema with Hibernate tools"
To view the discussion, visit: https://community.jboss.org/message/801796#801796
--------------------------------------------------------------
So I decided to remove maven from the problem and wrote an ant build script that uses
hibernate tools directly.
But I still get the same error:
[hibernatetool] An exception occurred while running exporter #2:hbm2java (Generates a set
of .java files)
[hibernatetool] To get the full stack trace run ant with -verbose
[hibernatetool] org.hibernate.MappingException: *An association from the table FOO refers
to an unmapped class: com.whatever.domain.Bar*
BUILD FAILED
build.xml:23: org.hibernate.MappingException: An association from the table FOO refers to
an unmapped class: com.whatever.domain.Bar
at
org.hibernate.cfg.Configuration.secondPassCompileForeignKeys(Configuration.java:1285)
at
org.hibernate.cfg.JDBCMetaDataConfiguration.secondPassCompileForeignKeys(JDBCMetaDataConfiguration.java:33)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1203)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1148)
at
org.hibernate.tool.ant.ConfigurationTask.getConfiguration(ConfigurationTask.java:56)
at
org.hibernate.tool.ant.HibernateToolTask.getConfiguration(HibernateToolTask.java:302)
at
org.hibernate.tool.ant.HibernateToolTask.getProperties(HibernateToolTask.java:318)
at org.hibernate.tool.ant.ExporterTask.configureExporter(ExporterTask.java:94)
at
org.hibernate.tool.ant.Hbm2JavaExporterTask.configureExporter(Hbm2JavaExporterTask.java:34)
at org.hibernate.tool.ant.ExporterTask.execute(ExporterTask.java:39)
at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:186)
Here's my ant *build.xml* file:
<project basedir="." default="reveng">
<path id="toolslib">
<path
location="/r/org/hibernate/hibernate-tools/3.2.3.GA/*hibernate-tools-3.2.3.GA.jar*"
/>
<path
location="/r/org/hibernate/hibernate-core/3.3.1.GA/*hibernate-core-3.3.1.GA.jar*"
/>
<path
location="/r/org/hibernate/hibernate-annotations/3.4.0.GA/hibernate-annotations-3.4.0.GA.jar"
/>
<path location="/r/freemarker/freemarker/2.3.8/freemarker-2.3.8.jar"
/>
<path location="/r/com/oracle/ojdbc/11.1.0.6.0/*ojdbc-11.1.0.6.0.jar*"
/>
<path
location="/r/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar"
/>
<path location="/r/dom4j/dom4j/1.6.1/dom4j-1.6.1.jar" />
<path location="/r/org/slf4j/slf4j-api/1.5.6/slf4j-api-1.5.6.jar" />
<path location="/r/org/slf4j/slf4j-log4j12/1.5.6/slf4j-log4j12-1.5.6.jar"
/>
<path location="/r/log4j/log4j/1.2.16/log4j-1.2.16.jar" />
<path location="/r/cglib/cglib/2.2.2/cglib-2.2.2.jar" />
<path location="/r/asm/asm/3.3.1/asm-3.3.1.jar" />
<path
location="/r/commons-collections/commons-collections/3.1/commons-collections-3.1.jar"
/>
</path>
<taskdef name="hibernatetool"
classname="org.hibernate.tool.ant.HibernateToolTask"
classpathref="toolslib" />
<target name="reveng" description="Reverse-engineer a DB
schema">
<hibernatetool destdir="${build.dir}/generated">
<jdbcconfiguration propertyfile="*hibernate.properties*"
packagename="com.whatever.domain" revengfile="*reveng.xml*" />
<hbm2java jdk5="true" ejb3="true" />
</hibernatetool>
</target>
</project>
It is accessing the same *hibernate.properties* file and *reveng.xml* file specified in
the comment above.
Hope this helps.
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