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4

javax.persistence.criteria.Path

the type resulting from the get operation in order to avoid the use of Path variables. For example
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javax.persistence.criteria.CollectionJoin

the type resulting from the get operation in order to avoid the use of Path variables
4

javax.persistence.Basic

javax.persistence Annotation Basic Target: Fields (including property get methods) The simplest type of mapping to a database column. The Basic annotation can be applied to a persistent property or instance variable of any of the following types: Java primitive types, wrappers of the primitive
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javax.persistence.criteria.Root

variables. For example: CriteriaQuery q = cb.createQuery(Person.class
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javax.persistence.criteria.MapJoin

resulting from the get operation in order to avoid the use of Path variables. For example
3

queries under 2.7.6_4 significantly slower than under 2.7.6

" variable="o"> <btreePlan plan="index(-104['(OP)'->'(OP)':notNull])" eval="6.4168" variable="o ... " variable="v$1"> <btreePlan plan="type(ObjectNode[set])" eval="1.0" variable="v$1" /> </extractPlan ... ,type(ObjectProperty[set]))" eval="1.0" variable="v$2"> <btreePlan plan="type(ObjectProperty[set
0

addSubquery(sub, variableDeclaration, candidateCollectionExpression, parameter)

. Parameters: sub - the subquery to add to this Query variableDeclaration - the name of the variable
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addSubquery(sub, variableDeclaration, candidateCollectionExpression)

Method javax.jdo.Query void addSubquery( Query sub, String variableDeclaration, String candidateCollectionExpression ) Add a subquery to this query. Parameters: sub - the subquery to add to this Query variableDeclaration - the name of the variable in the outer query to bind the results
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addSubquery(sub, variableDeclaration, candidateCollectionExpression, parameters)

variableDeclaration - the name of the variable to be used in this Query candidateCollectionExpression - the candidate
0

javax.jdo.Constants

() String OPTION_UNCONSTRAINED_QUERY_VARIABLES "javax.jdo.option.UnconstrainedQueryVariables" "javax

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.

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