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Manual
75

Logical Operators in JPQL and Criteria API

must be one of: TRUE, FALSE, and NULL. The following table shows how the AND operator is evaluated based on its two operands:   TRUE FALSE NULL TRUE TRUE FALSE NULL FALSE FALSE FALSE FALSE NULL NULL FALSE ... and the other operand is either TRUE or NULL, the result is NULL (unknown). ObjectDB supports
Manual
58

Literals in JPQL and Criteria Queries

including NULL, boolean literals (TRUE and FALSE), numeric literals (e.g. 100), string literals (e.g ... two boolean literals - TRUE and FALSE. Since JPQL is case insensitive, TRUE is equivalent to true and True, and FALSE is equivalent to false and False. Numeric Literals JPQL supports the Java syntax as
Manual
56

Comparison in JPQL and Criteria API

== FALSE TRUE != TRUE FALSE Comparison operators are always evaluated to TRUE, FALSE or NULL. When both operands are not NULL (not shown in the table) the operator is evaluated to either TRUE or FALSE ... is true. All the other operators implement the SQL logic in which NULL represents an unknown value
Manual
28

Database Management Settings

enabled="true" sync="false" path="." max="128mb" />     
Manual
26

Entity Management Settings

:   
Issue
25

NPE using AND TRUE in WHERE clause

The following (dynamically generated) query causes an NPE: SELECT e FROM Event e WHERE e.account=:account AND TRUE When I change it to a trivial term which evaluates to true, it works fine: SELECT e FROM Event e WHERE e.account=:account AND 1=1 Here is the stack trace: om.objectdb.o
Forum
25

orphanRemoval = true not working when CascadeType.REMOVE is disabled

Dear all, I have entities Employee and Address, their relation is defined (full example in attachment): @Entity     public static class Employee { ....         @OneToMany(orphanRemoval = true)         private Set
addresses; I'm expecting, that removing Employee from db, addresses
Manual
19

Collections in JPQL and Criteria Queries

IS EMPTY is TRUE if the collection is empty and FALSE otherwise. c.languages IS NOT EMPTY is FALSE if the collection is empty and TRUE otherwise. SIZE The SIZE(collection) function returns the number ... .languages is TRUE if languages contains 'English' and FALSE if not. 'English' NOT MEMBER OF c.languages
Manual
18

Deleting JPA Entity Objects

annotations: @Entity class Employee { : @OneToOne(orphanRemoval=true) private ... to the referenced Address entity object. In this regard, orphanRemoval=true and cascade=CascadeType.REMOVE are identical, and if orphanRemoval=true is specified, CascadeType.REMOVE is redundant
Manual
16

General Settings and Logging

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