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13

Pre-detach loading: retrieval by navigation not working in if statement

_LightingZone() { Float sum = 0f; if (getL_LightingZone() != null && getL_LightingZone().getEls() != null) { for (LightingZone lz : getL_LightingZone().getEls()) { if (lz.getPresent().getValue() != null && lz.getPresent().getValue()) { //FAILS TO LOAD getPresent().getValue
11

Date field Index is corrupted due to time change

.InternalException: null com.objectdb.o.InternalException at com.objectdb.o.InternalException.f ... on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: null com.objectdb.o ... first key is (2016-01-02 09:00:00,1970-01-02 13:05:42,null,null)|1:19940, parent page #5599 key
2

coalesce(x, y)

Method javax.persistence.criteria.CriteriaBuilder Expression<T> coalesce( Expression<T> x, Expression<T> y ) 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 - expression Returns: coalesce expression Since: JPA 2.0
2

coalesce(x, y)

Method javax.persistence.criteria.CriteriaBuilder Expression<Y> coalesce( Expression<?> x, Y y ) 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: coalesce expression Since: JPA 2.0
2

Exception(cause)

Constructor java.lang.Exception Exception( Throwable cause ) Constructs a new exception with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically ... ). Parameters: cause - the cause (which is saved for later retrieval by the getCause() method). (A null
2

Unexpected exception (Error 990) on find

/issue/new com.objectdb.o.InternalException: null com.objectdb.o.InternalException at com ... ) Page Relation Errors -------------------- [1] Page #96658 unexpected exception: null [2] Page #96658 last key is null, parent page #144908 next key is 'Elementarprodukt:400000100465140:7:1:' [3
2

Query Execution Error

IS NOT NULL) AND ($3 IS NOT NULL) AND ($4 IS NOT NULL) AND ($4.qubletID=383))) OR NOT (((com.lexware ... ')).contracts.active=true)))) results in "Query Execution Error===null" in Explorer and Internal Exception ... Alexander Adam Well ok, the null pointer occurrs now even without collection stuff which has worked
2

[ObjectDB 2.5.5_03] Unexpected exception (Error 990)

Hello! When I run this query SELECT t FROM Unit t WHERE t.lastGeocodedPosition IS NULL OR ... /database/issue/new com.objectdb.o.InternalException: null com.objectdb.o.InternalException at com ... .lastGeocodedPosition IS NULL OR t.lastGeocodedPosition.receiveTime < :receiveTime and send time
0

javax.jdo.annotations.NullValue

<NullValue> Enumeration of the "null-value" behavior values. This corresponds to the "null-value ... has no constant with the specified name java.lang.NullPointerException - if the argument is null NullValue
0

Persistent.nullIndicatorColumn

Annotation Element javax.jdo.annotations.Persistent String nullIndicatorColumn Null indicator column for this member. Used for nested embedded fields or properties to indicate whether the embedded instance should have a null value. Returns: the null indicator column Default value: "" Since: JDO 2.1

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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