About retrieve

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Tutorial
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Step 4: Create an ObjectDB Data Set

contains Point entity objects. We will use a simple JPQL query that retrieves points with x value in
Manual
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Detached Entity Objects

). Retrieval by navigation from detached objects is not supported, so only persistent fields
Result
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About ObjectDB Database

ObjectDB Object Database ObjectDB is a powerful Object-Oriented Database Management System (ODBMS). It is compact, reliable, easy to use and extremely fast. ObjectDB provides all the standard database management services (storage and retrieval, transactions, lock management, query processing
Result
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ObjectDB - Object Database for Java (JPA/JDO) [2017-10-19]

system (RDBMS) to store and retrieve Java objects requires slow conversions between graphs of Java
Manual
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Literals in JPQL and Criteria Queries

retrieval by type. In JPQL an entity type literal is written simply as the name of the entity class (e.g
Manual
7

JPA Named Queries

" that retrieves all the Country objects in the database: @NamedQuery(name="Country.findAll", query
Tutorial
7

Step 3: Add a Context Listener Class

(contextInitialized). Retrieves the EntityManagerFactory from the application scope attribute and closes
Result
7

About ObjectDB Database [2017-10-24]

ObjectDB Object Database ObjectDB is a powerful Object-Oriented Database Management System (ODBMS). It is compact, reliable, easy to use and extremely fast. ObjectDB provides all the standard database management services (storage and retrieval, transactions, lock management, query processing
Tutorial
7

Step 4: Add a Servlet Class

. All the Guest entity objects are retrieved from the database and stored in the request's "guest
Tutorial
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Step 5: Add a JSP Page

that have already signed (which are retrieved from the request's "guests" attribute that is set by