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Server User List

" ip="" admin="true"> <dir path="/" permissions="access,modify,create,delete" /> </user> <user username="$default" password="$$$###"> <dir path="/$user/" permissions="access ... <dir path="/" permissions="access,modify,create,delete" /> <dir path="/$user/" permissions

Server Configuration

: <server> <connection port="6136" max="0" /> <data path="$objectdb/db-files ... . The <data> element <data path="$objectdb/db-files" /> The <data> element has one attribute, path, which specifies the location of ObjectDB databases that the server manages. The $objectdb

Strings in JPQL and Criteria Queries

parameters - when string values are assigned as arguments. as path expressions - in navigation ... for a match (usually a path expression) and the right operand is always the pattern (usually a parameter or ... factory methods for building these expressions, as shown in the following examples: // Create path

Numbers in JPQL and Criteria Queries

parameters - when numeric values are assigned as arguments. as path expressions - in navigation ... may be either another numeric expression or a simple Java numeric object: // Create path and parameter expressions: Expression<Integer> path = country.get("population"); Expression<Integer> param

General Settings and Logging

: <general> <temp path="$temp/ObjectDB" threshold="64mb" /> <network inactivity-timeout="0" />   <url-history size="50" user="true" password="true" /> <log path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> <log-archive path="$objectdb/log/archive/" retain="90

Criteria Query Expressions

Reference (JavaDoc) of JPA query expression interfaces, including Expression, Predicate, Path, ParameterExpression and Subquery.

FROM clause (JPQL / Criteria API)

is declared as a join variable that is bound to the c1.neighbors path and iterates only over objects in ... to have a single range variable that serves as a root and additional join variables that are bound to path expressions. Join variables can also be bound to path expressions that are based on other join variables

SSL Configuration

file contains the following <ssl> element: <ssl enabled="false"> <server-keystore path="$objectdb/ssl/server-kstore" password="pwd" /> <client-truststore path="$objectdb/ssl/client-tstore ... on the server machine. Setting the Configuration <ssl enabled="true"> <server-keystore path

Database Management Settings

enabled="true" sync="false" path="." max="128mb" /> <recording enabled="false" sync="false" path ... for most applications. The <recovery> element <recovery enabled="true" sync="false" path="." max ... other alternative path can be specified by the path attribute. Using separate storage devices (e.g. disks

[ODB1] Chapter 9 - ObjectDB Explorer

path of the ObjectDB Free Edition on Windows is c:\objectdb, you can start the Explorer using the following command: > java -jar c:\objectdb\lib\odbfe.jar If a database path is specified ... argument: > java -Xmx256m -jar c:\objectdb\lib\odbfe.jar Similar commands (but with different paths

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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