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21

em.flush(); em.clear(); loosing data and not persisting managed objects

(); for(int i=0;i<Integer.MAX_VALUE;i++) { TestEntity v = new TestEntity(); v.setId(i); em ... ] <queryRequest query="SELECT MAX($1.addDate) FROM Notes $1 WHERE $1.addDate IS NOT NULL" args="null ... ="SELECT" code="132" postion="0:6" /> <token name="MAX" code="118" postion="7:10" /> <token
20

Occasionally slow requests in load testing

/" max="8mb" stdout="false" stderr="false" /> <log-archive path="$objectdb/log/archive/" retain ... " resize="256mb" page="2kb" /> <recovery enabled="true" sync="false" path="." max="128mb ... " /> <processing cache="8mb" max-threads="400" /> <query-cache results="8mb" programs="500
18

Replication error on slave restart

is to get master server to max uptime. And to use slave server in read-only mode to process statistics ... ="50" user="true" password="true" /> <log path="$objectdb/log/" max="8mb" stdout="false" stderr ... enabled="false" sync="false" path="." max="128mb" /> <recording enabled="true" sync="false" path
17

500Mb ObjectDb database opening issue

500Mb ObjectDb database opening issue
8

javax.persistence.criteria.CriteriaBuilder

Returns: less-than predicate Since: JPA 2.0 Expression<N> max( Expression<N> x) Create an aggregate expression applying the numerical max operation. Create an aggregate expression applying the numerical max operation. Parameters: x - expression representing input value to max operation Returns: max
3

javax.persistence.Query

Integer.MAX_VALUE if setMaxResults was not applied to the query object. Returns: maximum number
3

getMaxResults()

Method javax.persistence.Query int getMaxResults() The maximum number of results the query object was set to retrieve. Returns Integer.MAX_VALUE if setMaxResults was not applied to the query object. Returns: maximum number of results Since: JPA 2.0
3

javax.persistence.TypedQuery

to retrieve. Returns Integer.MAX_VALUE if setMaxResults was not applied to the query object. Returns: maximum
0

javax.jdo.Query

-based inclusive start index toExcl - 0-based exclusive end index, or Long.MAX_VALUE for no limit
0

setRange(fromIncl, toExcl)

exclusive end index, or Long.MAX_VALUE for no limit. Since: JDO 2.0

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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