Fast Object Database for Java - with JPA/JDO support

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Step 6: Set the Spring XML

index.jsp
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[ODB1] Chapter 1 - About ObjectDB

per second. Even queries on millions of objects are very fast, when proper indexes are defined. ObjectDB
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[ODB1] Chapter 7 - JDOQL Queries

are included in the result collection. If an index is defined for the age field (see section 4.5), iteration
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javax.jdo.annotations.Key

a foreign key constraint Default value: "" Since: JDO 2.1 String index The name of the index to generate. The name of the index to generate. Returns: the name of the index Default value: "" Since: JDO 2.1 String indexed Whether the value column(s) should be indexed. Whether the value column(s
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javax.jdo.annotations.Value

2.1 String index The name of the index to generate. The name of the index to generate. Returns: the name of the index Default value: "" Since: JDO 2.1 String indexed Whether the value column(s) should be indexed. Whether the value column(s) should be indexed. Returns: whether the value column(s
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javax.jdo.annotations.Element

String index The name of the index to generate. The name of the index to generate. Returns: the name of the index Default value: "" Since: JDO 2.1 String indexed Whether the value column(s) should be indexed. Whether the value column(s) should be indexed. Returns: whether the value column(s
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javax.jdo.annotations.Join

assume a primary key constraint Default value: "" Since: JDO 2.1 String index The name of the index to generate. The name of the index to generate. Returns: the name of the index Default value: "" Since: JDO 2.1 String indexed Whether the join column is indexed. Whether the join column is indexed
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Unexpected exception during open the database

, when indexes require updates. support Support The issue is not related to Issue #1860. It occurs ... .dmos.RenamedTestImpl"/> @Entity public class RenamedTestImpl { ... @Index private String scopeID; ... } if we remove the @Index annotation in the entity or we remove the schema
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Query becomes slower on moving from ObjectDB 1.x to ObjectDB 2.x

an index is missing? It would help if you could upload a sample database and a simple test program ... the query. binitbhaskar Binit Bhaskar In the database that you uploaded there is an index on field logEntryId, which is inactive. An inactive index is usually the result of adding a new index
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javax.persistence.criteria.ListJoin

testing for membership Since: JPA 2.0 Expression index() Create an expression that corresponds to the index of the object in the referenced association or element collection. Create an expression that corresponds to the index of the object in the referenced association or element collection

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

Need Help?

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