ObjectDB Database Search
1-50 of 200 resultsApache License, Version 2.0, January 2004 or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor ... the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or | |
JPA Metamodel API. This includes all the types whose instances are already stored in the database. Three additional ... : Attribute strAttr2 = managedType. getDeclaredAttribute ("name"); Additional methods are defined ... . getDeclaredVersion (Long.class); Additional methods are defined in IdentifiableType to support | |
Locking in JPA. setProperty ("javax.persistence.lock.timeout", 4000); In addition , the hint can be set for a specific ... , LockModeType . NONE ); Other Explicit Lock Modes In addition to the two main pessimistic modes ( PESSIMISTIC_WRITE and PESSIMISTIC_READ, which are discussed above), JPA defines additional lock modes | |
Eclipse Public License - v 1.0 Contributor: i) changes to the Program, and ii) additions to the Program; where such changes and/or additions to the Program originate from and are distributed by that particular Contributor ... anyone acting on such Contributor's behalf. Contributions do not include additions to the Program | |
Query Parameters in JPA). Ordinal Parameters (?index) In addition to named parameters, whose form is :name , JPQL ... the query and may help in hacking the system. In addition , parameters are more flexible and support ... in a query, which is essential whenever using query parameters. In addition , there are 9 methods | |
JPA Query Expressions (JPQL / Criteria) : * (multiplication), / (division), + ( addition ) and - (subtraction). Comparison operators ... , [NOT] MEMBER [OF] and the [NOT] LIKE operator. Logical operators : AND, OR, NOT. In addition , JPA | |
JPA Query API a TypedQuery instance the expected result type has to be passed as an additional argument, as ... and execute queries in JPA: In addition , the syntax of the JPA Query Language (JPQL) is described in: | |
JPA Annotations for Fields The way a field of a persistable class is managed by JPA can be set by the following annotations: Additional annotations (and enum) are designated for enum fields: Other additional annotations (and enum) are designated for date and calendar fields: Chapter 2 of the ObjectDB manual explains how to use all the above annotations. | |
JPA Persistable Types . In addition , only instances of entity classes preserve identity and are stored ... and values in maps) are either null values or instances of persistable types. In addition | |
Defining a JPA Entity Class is an ordinary Java class. The only unique JPA addition is the @Entity annotation, which marks the class as ... when an entity object is persisted. Chapter 2 provides additional information on how to define entity | |
ObjectDB License databases (for which licenses have been purchased) does not require additional separate licenses. Purchase ... organization in one building, and in addition also covers installation of ObjectDB on: Home computers | |
FROM clause (JPQL / Criteria API) an additional type of identification variable, a join variable, which represent a more limited ... variable that serves as a root and additional join variables that are bound to path expressions | |
Schema Update. All the classes in that package are moved to the new package name. In addition , whether or not a new ... in the element the name value of the element is used. In addition , whether or not a new-name | |
Running JPA Queries - for general use in any other case. In addition , the Query interface defines a method for running ... provides an additional method, getSingleResult , as a more convenient method when exactly one result | |
Numbers in JPQL and Criteria Queries binary operators: + ( addition ), - (subtraction), * (multiplication) and / (division). ObjectDB ... . get ("population"); Expression param = cb. parameter (Integer.class); // Addition (+) Expression sum1 = cb. sum | |
General Settings and Logging should also be written to the standard output and the standard error (respectively) in addition ... , which can be shown in the default configuration above, represents the entire ObjectDB system. Additional | |
ObjectDB Object Database Features Recovery from failure by using a recovery file and double writing. Additional recovery layer | |
Database Schema Evolution Modifications to entity classes that do not change their persistent field definitions (their schema) are transparent to ObjectDB. This includes adding, removing and modifying constructors, methods and non persistent fields. However, additions , deletions and modifications to the persistent fields | |
Is ObjectDB a NoSQL Database?, but they are easier to use in object oriented languages such as Java. In addition , unlike most other NoSQL databases | |
Detached Entity Objects EntityManager . In addition , in JPA 2 we can detach an entity object by using the detach method: em. detach | |
JPA Entity Fields with the Version annotation. In addition , a version field should have a numeric type: @Entity | |
JPA Primary Key time, sensor ID and additional details. Suppose that queries that retrieve all the events | |
Deleting JPA Entity Objects, if any). Orphan Removal JPA 2 supports an additional and more aggressive remove cascading mode | |
Shared (L2) Entity Cache; EntityManager instances. In addition to the EntityManager 's L1 cache and the EntityManagerFactory 's L2 | |
JPA Class Enhancer to the enhance method as a single string delimited by commas or spaces. In addition , a class loader | |
Retrieving JPA Entity Objects of additional entity objects. By default, a retrieval operation is automatically cascaded through all the non | |
What are the main benefits of using ObjectDB? multiple values (even for a simple data structure such as a collection of strings). In addition | |
JPA Query Structure (JPQL / Criteria) elements such as names of entity classes and persistent fields, which are case sensitive. In addition | |
JPA Annotations for Relationships annotation enables configuring cascade and fetch policy, using the following enum types: Additional | |
JPA Reference (JavaDoc) This reference contains the API documentation (similar to JavaDoc) of the Java Persistence API (JPA) 2.0. The content is derived from the original JPA documentation (in the EclipseLink JPA 2 RI) with some additions and notes. The JPA types are organized into the following sections: The purpose | |
JPA Annotations JPA defines dozens of annotations that can be divided into the following groups: Annotations for JPA aware classes: Annotations for fields in JPA persistable classes: Annotations for additional JPA configuration: Annotations for JPA lifecycle event callbacks: Java EE container annotations: Many | |
ObjectDB License Agreement [ver. 2.0.4] prevail over any conflicting or additional terms of any oral or written quote, acknowledgement | |
Logical Operators in JPQL and Criteria API, isLarge); // Either OECD member or large Additional factory methods are available for a variant number | |
Collections in JPQL and Criteria Queries an additional method for checking if a specified element is contained in a collection. JPA | |
Strings in JPQL and Criteria Queries (path, param); Predicate l4 = cb. notLike (path, "a%"); // additional methods take also an escape | |
ORDER BY clause (JPQL / Criteria API) expression is the primary order expression. Any additional order expression is used to order results | |
Setting and Tuning of JPA Queries Hints Additional settings can be applied to queries via hints. Supported Query Hints ObjectDB | |
Sequence.allocate(additional) - JDO Method JDO Method in javax.jdo.datastore.Sequence void allocate ( int additional ) Provides a hint to the implementation that the application will need additional sequence value objects in ... improve the efficiency of the algorithm of obtaining additional sequence value objects. Parameters | |
[ODB1] Chapter 6 - Persistent Objects of persistent types is available at section 3.2 ). ObjectDB provides an additional storing method ... cannot be shared by references from multiple objects. In addition , embedded objects of persistent ... a JDOUserException if the name is already in use. In addition to the naming issue | |
[ODB1] Chapter 2 - A Quick Tour collections) can be stored only as fields of persistent classes. In addition , objects are stored ... Source Code In addition to the two files from the previous section ( Person.java and package.jdo ... enhancer. To use it, an additional main class, named eMain (enhancer Main) is defined: 1 | |
[ODB1] Chapter 9 - ObjectDB Explorer is equivalent to the following command: $ java -Xms16m -Xmx512m -jar odbfe.jar In addition , any JVM ... window in "Tools | Options | General | Display"). Additional information about working with viewer ... the number of objects to construct and their type. Additional information is required for specific | |
Step 4: Run the Application the existing database file to store an additional 1000 objects. You can view the content of the database file | |
[ODB1] Chapter 3 - Persistent Classes support for additional types is to define new persistent classes. For example, the class java.awt ... because it might require loading additional data and objects from the database (as part of transparent ... to a project that applies on the fly enhancement: package test; /** Additional main - On the Fly JDO Enhancer | |
[ODB1] Chapter 1 - About ObjectDB with tables, records and SQL in addition to the application's classes and objects. ObjectDB is JDO ... DB2 and Microsoft SQL Server. In addition , by using JDO you are backed up by a large community ... on the embedded database edition, but has some additional restrictions and limitations. This developer's | |
[ODB1] Chapter 4 - JDO Metadata the default package) and classes B , C and D (in package test ), as persistent. In addition to the required ... and cannot be shared by references from multiple objects. In addition , embedded objects of persistent classes | |
[ODB1] Chapter 5 - JDO Connections an IOException if the jdo.properties file is not found. In addition , the call to getClass() should be replaced ... the default. In addition , the PersistenceManagerFactory class includes getter and setter methods | |
[ODB1] Chapter 8 - ObjectDB Server An ObjectDB server can manage one or more databases. Databases that are managed by a server can be accessed by multiple processes simultaneously. In addition , the server supports accessing ... the user permission to view the directory content (using the Explorer). Additional permissions | |
Which API should I use - JPA or JDO? the primary API, and if necessary, switch to JDO as a secondary API for special additional features | |
JDO Reference (JavaDoc) This reference contains the API documentation (similar to JavaDoc) of JDO 2.2. The content is derived from the original JDO documentation with some additions and notes. The most basic JDO types are: All the other JDO types are organized into the following sections: | |
[ODB1] Chapter 7 - JDOQL Queries of the candidate class satisfying the given filter. In addition to these three main components, queries |