I am using create-drop as the value for hibernate.hbm2ddl.auto . I have also created a script since I need to insert some amount of data in by tables before actually performing any sort of testing. However since my schema is getting automatically created as I have used the create-drop mode but the script gets an error and says that no such table exists for the SQL operations I am trying to perform. I think its because the script is running before the tables are being created. How do I make this work ? One option is to use validate and provider a create.sql file to make the schema and then run the scripts. But I want to use create-drop.
<properties>
<!-- Configuring JDBC properties -->
<property name="javax.persistence.jdbc.url" value="jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;INIT=RUNSCRIPT FROM 'classpath:create.sql'\;RUNSCRIPT FROM 'classpath:data.sql'"/>
<property name="javax.persistence.jdbc.driver" value="org.h2.Driver"/>
<!-- Hibernate properties -->
<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect"/>
<property name="hibernate.hbm2ddl.auto" value="create-drop"/>
<property name="hibernate.format_sql" value="false"/>
<property name="hibernate.show_sql" value="true"/>
</properties>
Related
I managed to save and load spark dataframe from ignite by the example here: https://apacheignite-fs.readme.io/docs/ignite-data-frame
By following the code example when the cache is created in ignite it automatically has a name like "SQL_PUBLIC_name_of_table_in_spark".
One the other hand if I want to change some cache configuration I need to specify the same cache name in xml or code before creating ignite cache. Because cache configuration can not be changed after cache is created. See following code.
<bean class="org.apache.ignite.configuration.IgniteConfiguration">
<property name="cacheConfiguration">
<bean class="org.apache.ignite.configuration.CacheConfiguration">
<!-- Set a cache name. -->
<property name="name" value="SQL_PUBLIC_name_of_table_in_spark"/>
<!-- Set cache mode. -->
<property name="cacheMode" value="PARTITIONED"/>
</bean>
</property>
</bean>
Then one of them will be reject by "cache already exists" The result is I could't change any cache configuration by xml/code.
Is this expected? And how can I change the cache configuration in this case?
The doc page you've link contains a code piece that creates an SQL table:
CREATE TABLE person (
id LONG,
name VARCHAR,
city_id LONG,
PRIMARY KEY (id, city_id)
) WITH "backups=1, affinityKey=city_id”;
This SQL command is what actually creates the cache. You can change this command to change the parameters of the cache that will be created. Refer to the CREATE TABLE doc.
In particular, the parameter that gives the most flexibility is WITH template=mytemplate. It lets you create a cache from a pre-existing template configuration. To register a template you can specify it in your cacheConfiguration with a name ending with asterisk, like
<bean class="org.apache.ignite.configuration.IgniteConfiguration">
<property name="cacheConfiguration">
<bean class="org.apache.ignite.configuration.CacheConfiguration">
<property name="name" value="mytemplate*"/>
<!-- your parameters. -->
</bean>
</property>
</bean>
You can also specify the WITH parameters for CREATE TABLE in the OPTION_CREATE_TABLE_PARAMETERS setting if the table is being created automatically by Spark.
I want to do a whitelisting of what properties are indexed/searched and shown in excerpt with a Magnolia search.
I am changing the indexing_configuration.xml in my website workspace.
Removing the index and restarting magnolia did not change anything...
By now I have this in my indexing_configuration.xml (next to other stuff)
but these are the String properties I want to include in my ecxcerpt the rest should be excluded:
<index-rule nodeType="nt:hierarchyNode">
<property boost="10" useInExcerpt="true">introTitle</property>
<property boost="1.0" useInExcerpt="true">introAbstract</property>
<property boost="1.0" useInExcerpt="true">contentText</property>
<property boost="1.0" useInExcerpt="true">subText</property>
<property boost="10" useInExcerpt="true">title</property>
<!-- exclude jcr:* and mgnl:* properties -->
<property isRegexp="true" nodeScopeIndex="false" useInExcerpt="false">.*:.*</property>
</index-rule>
<index-rule nodeType="mgnl:contentNode">
<property boost="5" nodeScopeIndex="false" useInExcerpt="true">introTitle</property>
<property boost="2" nodeScopeIndex="false" useInExcerpt="true">introAbstract</property>
<property boost="2" nodeScopeIndex="false" useInExcerpt="true">contentText</property>
<property boost="2" nodeScopeIndex="false" useInExcerpt="true">subText</property>
<property boost="5" nodeScopeIndex="false" useInExcerpt="true">title</property>
<!-- exclude jcr:* and mgnl:* properties -->
<property isRegexp="true" nodeScopeIndex="false" useInExcerpt="false">.*:.*</property>
</index-rule>
How can i get this to work as intended? Thanks for your help..
Most likely cause is that Magnolia/JR is not seeing your new configuration. Did you change your repo configuration (workspace.xml in website workspace) to point it to new index configuration?
Default looks like:
<SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
<param name="path" value="${wsp.home}/index" />
<!-- SearchIndex will get the indexing configuration from the classpath, if not found in the workspace home -->
<param name="indexingConfiguration" value="/info/magnolia/jackrabbit/indexing_configuration.xml"/>
and you need to point it to your new file.
Also not sure why you are setting indexing based on nt:hierarchyNode or mgnl:contentNode rather then using more specific mgnl:page/mgnl:component
I have 7 tables and some tables are empty and some has only one row. In table maximum 5 columns, no any extra indexes and I make quite simple SQL queries.
This is how I run h2.
java -jar h2-1.3.176.jar
Queries are generated and executed by eclipselink 2.6.3. These are my settings in persistence.xml
<properties>
<property name="eclipselink.connection-pool.default.initial" value="5"/>
<property name="eclipselink.connection-pool.default.min" value="5"/>
<property name="javax.persistence.jdbc.driver" value="org.h2.Driver"/>
<property name="javax.persistence.jdbc.url" value="jdbc:h2:tcp://localhost//home/somepath;DATABASE_TO_UPPER=FALSE"/>
<property name="javax.persistence.jdbc.user" value="sa"/>
<property name="javax.persistence.jdbc.password" value=""/>
<property name="eclipselink.logging.level" value="FINE"/>
<property name="eclipselink.logging.thread" value="false"/>
<property name="eclipselink.logging.exceptions" value="true"/>
<property name="eclipselink.orm.throw.exceptions" value="true"/>
<property name="eclipselink.left-join-fetch" value="true"/>
<property name="eclipselink.weaving" value="true"/>
</properties>
So every SQL query is executed about one second(!). Besides I hear that for every SQL query hard drive is working hard.
However, when I in H2 webconsole press connect to the same DB, then my java program works very fast. It works fast until I press disconnect in webconsole. How to explain this?
I have a flyway SQL script which inserts some data which is environment specific (Like deployment URL's) etc. I am having these values in a properties file. I want to use the same properties in this SQL file. I can do this by ant replace task/sed from bash file.In that case i need to run the script/ant target manually. Is there any other way to read properties in SQL file to read as ENVIRONMENT variable/replace placeholders?
I found a solution for this using flyway. We can use flyway placeholders.
<bean id="flyway" class="com.googlecode.flyway.core.Flyway"
init-method="migrate" scope="singleton">
<property name="dataSource" ref="dataSource" />
<property name="disableInitCheck" value="true"></property>
<property name="locations">
<list>
<value>migration-sql</value>
</list>
</property>
<property name="placeholders">
<map>
<entry key="key1" value="${value1}"></entry>
<entry key="key2" value="${value2}"></entry>
</map>
</property>
</bean>
properties file:
value1= value of key 1
value2= value of key 2
Reference:
Stackoverflow,
Flyway Feature request
I have done a job that reads data from a db and writes it in a file. It works fine with an Oracle DB. However, when I use it with Postgres I get the following error:
org.postgresql.util.PSQLException: ERROR: subquery in FROM must have an alias
Hint: Por ejemplo, FROM (SELECT ...) [AS] foo.
Position: 15
Error Code: 0
The reader is defined as follows:
<bean id="myReader"
class="org.springframework.batch.item.database.Jpa PagingItemReader">
<property name="entityManagerFactory" ref="entityManagerFactory" />
<property name="queryString" value="select c from CountryEntity c" />
<property name="pageSize" value="1000"/>
</bean>
Does anybody know if this is a common issue related with Postgres? Do I need to use a specific configuration?
You need to configure your JPA provider to use the PostGreSQL dialect.
E.g. for Hibernate, you would use a setup (persistence.xml) like this:
<persistence-unit name="somename" transaction-type="RESOURCE_LOCAL">
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect"/>
<property name="hibernate.connection.url" value="jdbc:postgresql:sample"/>
<property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver"/>
<property name="hibernate.format_sql" value="true"/>
<property name="hbm2ddl.auto" value="update"/>
</properties>
</persistence-unit>