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14

Performance problem

. and if possible, all the above also on the test server. support Support 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
2

get(i)

Method javax.persistence.Tuple Object get( int i ) Get the value of the element at the specified position in the result tuple. The first position is 0. Parameters: i - position in result tuple Returns: value of the tuple element Throws: IllegalArgumentException - if i exceeds length of result tuple Since: JPA 2.0
2

get(i, type)

Method javax.persistence.Tuple X get( int i, Class<X> type ) Get the value of the element at the specified position in the result tuple. The first position is 0. Parameters: i - position in result ... : IllegalArgumentException - if i exceeds length of result tuple or element cannot be assigned to the specified type Since: JPA 2.0
2

Different behavior for two equal queries

no results... Alex quasado Alexander Adam Here're also the execution plans from the explorer ... ) instances. Step 2: Process OrganisationContact (v$1) instances   (for every result of step 1 ... ] Filter the results of step 2b retaining only results that satisfy:   like(v$1.name,'%Q%'). Step
0

javax.jdo.PersistenceManager

, the result of toString() on the object id instance. Returns: an instance of the object identity class ... of the candidate instances and filter. Parameters: cls - the Class of results filter - the filter ... . Parameters: cls - the Class of results cln - the Collection of candidate instances Returns: the new Query
0

javax.jdo.spi.JDOImplHelper

for the constructor Returns: the result of construction Since: JDO 1.0 JDOImplHelper getInstance ... to get metadata for the specified class will result in a JDOFatalUserException. Parameters: pcClass ... to get metadata for unregistered classes will result in a JDOFatalUserException. Parameters: cl - the class loader. Since: JDO 1.0.2
0

closeAll()

Method javax.jdo.Query void closeAll() Close all query results associated with this Query instance, and release all resources associated with them. The query results might have iterators open on them. Iterators associated with the query results are invalidated: they return false to hasNext() and throw NoSuchElementException to next(). Since: JDO 1.0
0

close(queryResult)

Method javax.jdo.Query void close( Object queryResult ) Close a query result and release any ... on it. Iterators associated with the query result are invalidated: they return false to hasNext() and throw NoSuchElementException to next(). Parameters: queryResult - the result of execute(...) on this Query instance. Since: JDO 1.0
0

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
0

javax.jdo.FetchPlan

size for large result set support. Set the fetch size for large result set support. Use FETCH_SIZE ... a JDOUserException. A value of -1 means that no limit is placed on fetching. A positive integer will result

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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