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JPA Doc
11

javax.persistence.criteria.CriteriaBuilder

an expression that returns null if all its arguments evaluate to null, and the value of the first non-null argument otherwise. Create an expression that returns null if all its arguments evaluate to null, and the value of the first non-null argument otherwise. Parameters: x - expression y - value Returns
Manual
10

Index Definition

. When an entity object is stored in the database every indexed field must contain either null or ... . Arrays and collections that contain values of the above types (including null). Indexes
Manual
10

Retrieving JPA Entity Objects

with that retrieved data is constructed and returned. If the object is not found in the database null ... might be returned (null is never returned). A hollow object is initialized with the valid primary key
Issue
10

Issue with UPPER ?

.communication $6 WHERE (((NOT (($2 IS NOT NULL) AND ($2.austritt IS NOT NULL) AND ($2.austritt<=CURRENT_DATE)))) AND (((($3 IS NOT NULL) AND ($4 IS NOT NULL) AND ($4.name IS NOT NULL) AND ($4.name LIKE '%81%')) OR (($5 IS NOT NULL) AND ($5.postalCode IS NOT NULL) AND ($5.postalCode LIKE '%81%')) OR
Result
9

java.lang.Exception

with null as its detail message. Constructs a new exception with null as its detail message. The cause ... ) Constructs a new exception with the specified cause and a detail message of (cause==null ? null ... exception with the specified cause and a detail message of (cause==null ? null : cause.toString
Result
9

java.lang.Throwable

Throwable() Constructs a new throwable with null as its detail message. Constructs a new throwable with null as its detail message. The cause is not initialized, and may subsequently be initialized by ... cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains
JDO Doc
8

javax.jdo.spi.JDOImplHelper

of DocumentBuilderFactory. Returns: the DocumentBuilderFactory if registered; null otherwise Since: JDO 2.1 ErrorHandler ... instance of ErrorHandler. Returns: the registered ErrorHandler if registered; null otherwise Since: JDO ... . Returns: The PersistenceCapable superclass for this class, or null if there isn't one. Since: JDO 1
JDO Doc
8

javax.jdo.spi.StateInterrogation

StateInterrogation returns Boolean. If the return value is null then the StateInterrogation does not recognize the parameter as being handled by it. A non-null return value indicates ... registered StateInterrogation is given the parameter until one of them returns a non-null value
JPA Doc
8

javax.persistence.criteria.Subquery

or null, if no alias has been assigned. Return the alias assigned to the tuple element or null ... items, or null if no restrictions have been specified. Return the predicate that corresponds to the restriction(s) over the grouping items, or null if no restrictions have been specified. Returns
JDO Doc
7

javax.jdo.JDONullIdentityException

constructor parameter is null. This might occur when creating an object id instance from a transient instance where an identity field is null. Since: JDO 2.0 JDONullIdentityException() Constructs a new ... . Returns: the detail message string of this Throwable instance (which may be null). Since: Java