About bulk update

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Manual
7

Locking in JPA

update collisions resulting from simultaneous updates to the same data by two concurrent users. Locking ... that has to be updated or deleted is checked. An exception is thrown if it is found out that an update is being performed on an old version of a database object, for which another update has already been committed
Tutorial
7

Step 1: Install BIRT and ObjectDB Driver

for Java EE Developers. Update your existing Eclipse IDE for Java EE Developers environment by installing the BIRT plugins using the Eclipse Update Manager (updating Eclipse IDE with no Java EE support is more complicated because of BIRT dependencies and is not covered here). To update an existing
Manual
6

CRUD Database Operations with JPA [2011-02-11]

it to store, retrieve, update and delete database objects. Storing New Entity Objects The following ... is a very powerful query language and chapter 4 of this manual describes it in detail. Updating and Deleting ... when the transaction is committed. Updating an existing database object is similar. You have to obtain
Manual
6

CRUD Database Operations with JPA

it to store, retrieve, update and delete database objects. Storing New Entity Objects The following ... is a very powerful query language and chapter 4 of this manual describes it in detail. Updating and Deleting ... when the transaction is committed. Updating an existing database object is similar. You have to obtain
Manual
6

Running JPA Queries [2011-09-21]

other case. In addition, the Query interface defines a method for running DELETE and UPDATE queries: Query.executeUpdate - for running only DELETE and UPDATE queries. Ordinary Query Execution ... and UPDATE Query Execution (with executeUpdate) DELETE and UPDATE queries are executed using
Manual
6

Running JPA Queries

other case. In addition, the Query interface defines a method for running DELETE and UPDATE queries: Query.executeUpdate - for running only DELETE and UPDATE queries. Ordinary Query Execution ... and UPDATE Query Execution (with executeUpdate) DELETE and UPDATE queries are executed using
Manual
6

Database Management Settings

" synchronized="false" />   update enabled="true" priority="40" /> update> element   update enabled="true" priority="40" /> The update> element specifies how new defined
Manual
5

Storing JPA Entity Objects

too much memory. The sample code above clears the persistence context after every 10,000 persists. Updates are flushed to the database before clearing, otherwise they would be lost. Updates that are sent ... until a commit. With no explicit commit, these updates are later discarded. The combination of clear
Manual
4

Shared (L2) Entity Cache

, which are defined as constants of the CacheStoreMode enum: CacheStoreMode.BYPASS - cache is not updated with new ... that is already cached is updated using the fresh retrieved data only when CacheStoreMode.REFRESH is used. This might be useful when the database might be updated by other applications (or using
Manual
4

Database Replication and Clustering

, which are limited to READ operations. Any update to the master database is automatically propagated ... these details to connect to the master server in order to listen to updates. The updates are automatically