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  • Apache Derby running in Tomcat shutdown issues

    - by Luke
    I have set up Derby Network Server to be hosted within a Tomcat environment. This works great. However, when I shut down Tomcat I get the following errors: 04/01/2011 10:41:41 AM org.apache.catalina.core.StandardService stop INFO: Stopping service Catalina 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [/derby] registered the JBDC driver [org.apache.derby.jdbc.ClientDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [/derby] registered the JBDC driver [org.apache.derby.jdbc.AutoloadedDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [derby.NetworkServerStarter] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [NetworkServerThread_4] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [DRDAConnThread_5] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [DRDAConnThread_13] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.coyote.http11.Http11Protocol destroy INFO: Stopping Coyote HTTP/1.1 on http-8080 I'm currently starting and stopping Tomcat with the following commands: ./catalina run ./catalina stop Is there a better way to shutdown Tomcat with Derby or can this be solved by a configuration change?

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  • Apache Derby running within Tomcat causes shutdown issues

    - by Luke
    I have set up Derby Network Server to be hosted within a Tomcat environment. This works great. However, when I shut down Tomcat I get the following errors: 04/01/2011 10:41:41 AM org.apache.catalina.core.StandardService stop INFO: Stopping service Catalina 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [/derby] registered the JBDC driver [org.apache.derby.jdbc.ClientDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [/derby] registered the JBDC driver [org.apache.derby.jdbc.AutoloadedDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [derby.NetworkServerStarter] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [NetworkServerThread_4] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [DRDAConnThread_5] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [DRDAConnThread_13] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.coyote.http11.Http11Protocol destroy INFO: Stopping Coyote HTTP/1.1 on http-8080 I'm currently starting and stopping Tomcat with the following commands: ./catalina run ./catalina stop Is there a better way to shutdown Tomcat with Derby or can this be solved by a configuration change?

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  • Apache Derby master/slave replication and clustering

    - by Luke
    I'm interested in the possibilities of master/slave replication for Derby in client/server mode (if at all possible). However, I'm unable to find any material that either explains it in a decent fashion or is able to convince me that master/slave replication doesn't exist for Derby. Any pointers to decent reading material are very much appreciated.

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  • Problem connecting to Apache Derby using Hibernate configuration file in Netbeans (ERROR XSDB6)

    - by me_here
    I've created a local Apache Derby database in Netbeans, but am having problems when I try and autogenerate the POJO files, using the "Hibernate Reverse Engineering Wizard". My Hibernate configuration (generated by Netbeans from the database connection, then I added a few bits): <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <!-- Default Netbeans generated parameters --> <property name="hibernate.connection.driver_class">org.apache.derby.jdbc.EmbeddedDriver</property> <property name="hibernate.connection.url">jdbc:derby:C:/CerealDatabase</property> <property name="hibernate.connection.username">cerealuser</property> <property name="hibernate.connection.password">cerealpass</property> <!-- Additional parameters --> <property name="hibernate.dialect">org.hibernate.dialect.DerbyDialect</property> <property name="hibernate.show_sql">true</property> <property name="hibernate.default_schema">CEREALUSER</property> </session-factory> </hibernate-configuration> When I try and generate the POJOs using this configuration file, I get the message to check my configuration file, and the derby.log gives the errors: java.sql.SQLException: Failed to start database 'C:/CerealDatabase', see the next exception for details. Caused by: java.sql.SQLException: Failed to start database 'C:/CerealDatabase', see the next exception for details. Caused by: ERROR XSDB6: Another instance of Derby may have already booted the database C:\CerealDatabase. I've closed any other connections to the database before trying this, and there is no "db.lck" lock file at the time, which indicates there are no connections to the database as I understand it. Does anyone have any ideas? Help gratefully received.

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  • Apache Derby supports natively script delimiters?

    - by Steel Plume
    Hello, I know that I could separate all statements by pre-cutting before their execution, but I have a case in which I would like to insert a series of statements in one execution, currently I receive the following error: Caused by: java.sql.SQLException: Syntax Error: Encountered ";" at line 2, column 33. at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source) at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown Source) ... 17 more Caused by: ERROR 42X01: Syntax Error: Encountered ";" at line 2, column 33. Also do you know also if Derby supports conditional statements like that in pgsql case when else? Thanks

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  • derby + hibernate ConstraintViolationException using manytomany relationships

    - by user364470
    Hi, I'm new to Hibernate+Derby... I've seen this issue mentioned throughout the google, but have not seen a proper resolution. This following code works fine with mysql, but when I try this on derby i get exceptions: ( each Tag has two sets of files and vise-versa - manytomany) Tags.java @Entity @Table(name="TAGS") public class Tags implements Serializable { @Id @GeneratedValue(strategy=GenerationType.AUTO) public long getId() { return id; } @ManyToMany(targetEntity=Files.class ) @ForeignKey(name="USER_TAGS_FILES",inverseName="USER_FILES_TAGS") @JoinTable(name="USERTAGS_FILES", joinColumns=@JoinColumn(name="TAGS_ID"), inverseJoinColumns=@JoinColumn(name="FILES_ID")) public Set<data.Files> getUserFiles() { return userFiles; } @ManyToMany(mappedBy="autoTags", targetEntity=data.Files.class) public Set<data.Files> getAutoFiles() { return autoFiles; } Files.java @Entity @Table(name="FILES") public class Files implements Serializable { @Id @GeneratedValue(strategy=GenerationType.AUTO) public long getId() { return id; } @ManyToMany(mappedBy="userFiles", targetEntity=data.Tags.class) public Set getUserTags() { return userTags; } @ManyToMany(targetEntity=Tags.class ) @ForeignKey(name="AUTO_FILES_TAGS",inverseName="AUTO_TAGS_FILES") @JoinTable(name="AUTOTAGS_FILES", joinColumns=@JoinColumn(name="FILES_ID"), inverseJoinColumns=@JoinColumn(name="TAGS_ID")) public Set getAutoTags() { return autoTags; } I add some data to the DB, but when running over Derby these exception turn up (the don't using mysql) Exceptions SEVERE: DELETE on table 'FILES' caused a violation of foreign key constraint 'USER_FILES_TAGS' for key (3). The statement has been rolled back. Jun 10, 2010 9:49:52 AM org.hibernate.event.def.AbstractFlushingEventListener performExecutions SEVERE: Could not synchronize database state with session org.hibernate.exception.ConstraintViolationException: could not delete: [data.Files#3] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:96) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2712) at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2895) at org.hibernate.action.EntityDeleteAction.execute(EntityDeleteAction.java:97) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:268) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:260) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:184) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1206) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:613) at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:344) at $Proxy13.flush(Unknown Source) at data.HibernateORM.removeFile(HibernateORM.java:285) at data.DataImp.removeFile(DataImp.java:195) at booting.DemoBootForTestUntilTestClassesExist.main(DemoBootForTestUntilTestClassesExist.java:62) I have never used derby before so maybe there is something crutal that i'm missing 1) what am I doing wrong? 2) is there any way of cascading properly when I have 2 many-to-many relationships between two classes? Thanks!

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  • apache derby database

    - by mohit
    i am building a swing application with apache derby database as back end in netbeans 6.8 with my friend.He is making the databse in derby while i am making the front end i.e. frames. now how do i use database created by him in my project in netbeans 6.8 my motive is to how we insert a already build databse(from my friend's netbeans) into the the services tab of my application.

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  • VARCHAR does not work as expected in Apache Derby

    - by Tom Brito
    I'm having this same problem: How can I truncate a VARCHAR to the table field length AUTOMATICALLY in Derby using SQL? To be specific: CREATE TABLE A ( B VARCHAR(2) ); INSERT INTO A B VALUES ('1234'); would throw a SQLException: A truncation error was encountered trying to shrink VARCHAR '123' to length 2. that is already answered: No. You should chop it off after checking the meta-data. Or if you don't wanna check the meta-data everytime, then you must keep both your code and database in sync. But thats not a big deal, its a usual practice in validators. but my doubt is: isn't VARCHAR suppose to variate its size to fit the data? What's wrong with apache derby's VARCHAR?

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  • Derby vs PostgreSql Performance Comparison

    - by Austin
    We are doing research right now on whether to switch our postgresql db to an embedded Derby db. Both would be using glassfish 3 for our data layer. Anybody have any opinions or knowledge that could help us decide? Thanks! edit: we are writing some performance tests ourselves right now. Looking for answers more based on experience / first hand knowledge

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  • Derby gets stuck closing?

    - by bmargulies
    I've got unit tests (in maven) that use derby. At the end of the test run, there is a very long pause, with these log messages before the pause. INFO: Closing Hibernate SessionFactory Nov 16, 2009 8:30:31 PM org.hibernate.impl.SessionFactoryImpl close INFO: closing Nov 16, 2009 8:30:31 PM org.hibernate.tool.hbm2ddl.SchemaExport execute INFO: Running hbm2ddl schema export Nov 16, 2009 8:30:31 PM org.hibernate.tool.hbm2ddl.SchemaExport execute INFO: exporting generated schema to database Hibernate config: <hibernate-configuration> <session-factory> <property name="hibernate.dialect">org.hibernate.dialect.DerbyDialect</property> <property name="hbm2ddl.auto">create-drop</property> <property name="show_sql">false</property> </session-factory> </hibernate-configuration> referenced from: <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <!-- data source elsewhere --> <property name="dataSource" ref="dataSource" /> <property name="mappingResources"> <list> <value>com/basistech/configdb/dao/Gazetteer.hbm.xml</value> <value>com/basistech/configdb/dao/FileGazetteer.hbm.xml</value> <value>com/basistech/configdb/dao/Regexpset.hbm.xml</value> <value>com/basistech/configdb/dao/Redactjoiner.hbm.xml</value> <value>com/basistech/configdb/dao/Misc.hbm.xml</value> </list> </property> <property name="configLocation" value="classpath:com/basistech/configdb/dao/hibernate.xml"/> and finally maven: <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>hibernate3-maven-plugin</artifactId> <version>2.2</version> <executions> <execution> <id>codegen</id> <goals> <goal>hbm2java</goal> </goals> <phase>generate-sources</phase> <configuration> <components> <component> <name>hbm2java</name> </component> </components> <componentProperties> <configurationfile>src/main/hibernate/codegen-hibernate.xml</configurationfile> </componentProperties> </configuration> </execution> </executions> </plugin>

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  • How to format a date using Apache Derby?

    - by Steel Plume
    Hello, I would like to format nicely a date received from a query like: SELECT recdate FROM myrecords; pratically I am searching the function to pretty formatting with a date pattern, better if SimpleDateFormat like. And if not possible how can I build a class for formatting with somtehing like: SELECT MyFormatter(recdate) FROM myrecords

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  • Help writing database queries for derby?

    - by outsyncof
    I have a database containing multiple tables (Person, Parents, etc) Person table has certain attributes particularly ssn, countryofbirth and currentcountry. Parents table has ssn, and fathersbirthcountry I'm trying to output the SSNs of all people who have the same countryofbirth as their fathersbirthcountry and also have same currentcountry as fathersbirthcountry. SELECT Person.ssn FROM Person, Parents WHERE fathersbirthcountry = countryofbirth AND currentcountry = fathersbirthcountry; the above doesn't seem to be working, could anyone please help me out?

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  • JavaDB/Derby Error 08006

    - by Tom Brito
    In the article Using Java DB in Desktop Applications the Address Book demo have a method disconnect which have a try-catch block that catch and ignores the exception. If you add a printStackTrace you can see that the exception always occur. What's wrong here? The JavaDB should not throw this exception, or they should fix something in the example program?

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  • Looking for some help with GWT/Derby in Eclipse

    - by Ricky
    I'm attempting to learn AJAX via this site. I've made it down to the section where it says "you must put the code in the onModuleLoad()" (right above listing 4). I found two areas in my Eclipse project that mention onModuleLoad(): slicr.java and the actual EntryPoint.class file in the gwt-user.jar/com.google.gwt.core.client package. When I try to add the contents of listing for to slicr.java, I get tons of cannot be resolved to a type errors and I cant add anything to EntryPoint.class as it appears to be locked from editing. I really appreciate any help someone could give me!

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  • Derby 10.9.1.0 released

    - by kah
    Earlier today, the release of Apache Derby 10.9.1.0 was announced. In addition to the usual chunk of bug fixes, this release includes the following new features: NATIVE authentication, a new authentication mechanism with better support for managing credentials. See this section of the developer's guide for an introduction. JDBC 4.1 escape syntax completes Derby's support for JDBC 4.1. Allow multi-column subqueries in EXISTS predicates (SQL:2003 Feature T501, Enhanced EXISTS predicate) to support auto-generated SQL from some persistence frameworks. Download it now and try it out!

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  • spring JDBC

    - by Adhir
    I am getting the following exception whe using derby to do a UPDATE in oracle Database org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.derby.client.am.DisconnectException: A communication error has been detected. Communication protocol being used: Reply.fill(). Communication API being used: InputStream.read(). Location where the error was detected: insufficient data. Communication function detecting the error: *. Protocol specific error codes(s) TCP/IP SOCKETS at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:82) at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:522) at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:737) at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:795) at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:803) at com.poc.data.dao.UserDerbyDao.create(UserDerbyDao.java:19) at com.poc.register.RegisterUtil.registerUser(RegisterUtil.java:34) at com.poc.service.MyService.doRegister(MyService.java:108) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:175) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:67) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:166) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:114) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:74) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:114) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:66) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:658) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:616) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:607) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:309) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:425) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:590) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.derby.client.am.DisconnectException: A communication error has been detected. Communication protocol being used: Reply.fill(). Communication API being used: InputStream.read(). Location where the error was detected: insufficient data. Communication function detecting the error: *. Protocol specific error codes(s) TCP/IP SOCKETS at org.apache.derby.client.net.NetAgent.throwCommunicationsFailure(Unknown Source) at org.apache.derby.client.net.Reply.fill(Unknown Source) at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown Source) at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source) at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown Source) at org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown Source) at org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown Source) at org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown Source) at org.apache.derby.client.net.NetConnection.flowUSRIDPWDconnect(Unknown Source) at org.apache.derby.client.net.NetConnection.flowConnect(Unknown Source) at org.apache.derby.client.net.NetConnection.(Unknown Source) at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:291) at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:277) at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:259) at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:240) at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:113) at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) ... 37 more Any help Thanks in advance Adhir

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  • Access Derby for CDP Server

    - by Skudd
    I am working on a project that requires accessing the Derby database behind a CDP Backup Server. From what limited research I've been able to complete, I have found that it is possible to access Derby databases over TCP, but I'm at a complete loss for this. I'm looking to connect via PHP eventually, but first I need to know if this is at all possible with an out-of-the-box CDP server. Answers are, as always, appreciated. Thanks!

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  • How do I set up derby in eclipse on Ubuntu?

    - by Everett
    The question basically says it all. I'm trying setup up JavaDB on my virtualbox running Ubuntu 9.10. I have the package downloaded and installed through the package manager, which I believe is the right to go about it. I have also installed the Eclipse's Data Platform Tools. I've been following this tutorial here: http://www.vogella.de/articles/EclipseDataToolsPlatform/article.html. I'm stuck at the driver definition step. When I select the driver template from the Name/Type tab and the jar file in the Jar List tab, the OK button is never enabled. At the top of the New Driver Definition dialog it says 'Unable to locate Jar/zip in the file system as specified by the driver definition: derby.jar.' I assume this is the problem. Any help or links to a better tutorial would be much appreciated.

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  • JavaDB connection error (network protocol)

    - by oO
    I'm trying to connect to derby using this: dbProperties.put("create", "true"); dbProperties.put("dataEncryption", "true"); dbProperties.put("encryptionAlgorithm", "DES/CBC/NoPadding"); dbProperties.put("encryptionKey", "1234567890123456"); dbProperties.put("securityMechanism", ClientDataSource.STRONG_PASSWORD_SUBSTITUTE_SECURITY); // protocol is dbProperties.getProperty("derby.url", "jdbc:derby://localhost:1527/"); dbConnection = DriverManager.getConnection(protocol + dbName, dbProperties); but i get an error: A connection could not be established because the database name (...) is larger than the maximum length allowed by the network protocol. Is there a way to increase this length?

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  • JPA - How to truncate tables between unit tests

    - by Theo
    I want to cleanup the database after every test case without rolling back the transaction. I have tried DBUnit's DatabaseOperation.DELETE_ALL, but it does not work if a deletion violates a foreign key constraint. I know that I can disable foreign key checks, but that would also disable the checks for the tests (which I want to prevent). I'm using JUnit 4, JPA 2.0 (Eclipselink), and Derby's in-memory database. Any ideas? Thanks, Theo

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