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JDO Doc
3

javax.jdo.spi.JDOImplHelper

for the constructor Returns: the result of construction Since: JDO 1.0 JDOImplHelper getInstance ... further attempt to get metadata for the specified class will result in a JDOFatalUserException. Parameters ... to get metadata for unregistered classes will result in a JDOFatalUserException. Parameters: cl - the class loader. Since: JDO 1.0.2
Forum
3

Performance problem

, all the above also on the test server. Hi, we have collected results. Results from console program reveal some other interesting facts The test database on the production server from the Explorer. • Result 1: aprox 20000 records in 30ms • Result 2: 14000 Document records in 30ms The production database
JDO Doc
3

Query.resultClass

Annotation Element javax.jdo.annotations.Query Class resultClass Result class into which to put the results. Returns: the class of the result Default value: void.class Since: JDO 2.1
Issue
3

combined index not used

. [Step 1b] Filter the results of step 1a retaining only results that satisfy: (a.endDate>=:1). [Step 1c] Retrieve fields in Action (a) instances. [Step 1d] Filter the results of step 1c retaining only results that satisfy: (a.state=3). [Step 1e] Filter the results of step 1d
JPA Doc
2

construct(resultClass, selections)

. This method is used to specify a constructor that will be applied to the results of the query execution. If the constructor is for an entity class, the resulting entities will be in the new state
JPA Doc
2

construct(resultClass, selections)

. This method is used to specify a constructor that will be applied to the results of the query execution. If the constructor is for an entity class, the resulting entities will be in the new state
JPA Doc
2

createNamedQuery(name, resultClass)

metadata resultClass - the type of the query result Returns: the new query instance Throws ... to be invalid or if the query result is found to not be assignable to the specified type Since: JPA 2.0
JPA Doc
2

createQuery(qlString, resultClass)

resultClass - the type of the query result Returns: the new query instance Throws: IllegalArgumentException - if the query string is found to be invalid or if the query result is found to not be assignable to the specified type Since: JPA 2.0
JPA Doc
2

createQuery(resultClass)

Method javax.persistence.criteria.CriteriaBuilder CriteriaQuery createQuery(   Class resultClass ) Create a CriteriaQuery object with the specified result type. Parameters: resultClass - type of the query result Returns: criteria query object Since: JPA 2.0
JPA Doc
2

exists(subquery)

Method javax.persistence.criteria.CriteriaBuilder Predicate exists(   Subquery subquery ) Create a predicate testing the existence of a subquery result. Parameters: subquery - subquery whose result is to be tested Returns: exists predicate Since: JPA 2.0