Limitations
Overview
This page lists JPA features/functionalities that are unsupported by GigaSpaces JPA.
Annotations
Here’s a list of JPA annotations which are not supported by GigaSpaces JPA:
Access(AccessType.FIELD) JoinColumn Version UniqueConstraint Temporal AssociationOverride AttributeOverride ColumnResult DiscriminatorColumn DiscriminatorValue EntityResult FieldResult Inheritance JoinTable Lob ManyToMany MapKey
NamedNativeQuery NamedQuery OrderBy OrderColumn PrimaryKeyJoinColumn SecondaryTable SequenceGenerator SqlResultSetMapping Table TableGenerator QueryHint
JPQL
Unsupported JPQL keywords/expressions
- NOT.
- BETWEEN (Supported in 8.0.1).
- LIKE (Supported in 8.0.1).
- IS EMPTY.
- EXISTS.
- ANY/ALL.
- HAVING.
- IS NULL.
- String functions (CONCAT, SUBSTRING, TRIM, LENGTH, LOCATE, LOWER, UPPER)
- Arithmetic functions (ABS, SQRT, MOD, SIZE)
- Datetime functions (CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP)
Joins
- Outer Joins.
- Fetch Joins.
- Inner Joins are supported but the selected object must be the owning object of the relationship (this also applies to projections).
Other/misc.
- Native queries (Supported in 8.0.1).
- Primitive types support due to inconsistency between how GigaSpaces treats primitives to how JPA treats them.
- entityManager.refresh() for classes which has properties in a relation (Supported in 8.0.1).
- orm.xml is partially supported. The recommended way to model your data is by using Annotations.
- Lazy loading is not supported and therefore entities are always Eagerly loaded.
- Optimistic locking is not supported and therefore the LockManager property should always be set to “none” in persistence.xml (Supported in 8.0.1):
<property name="LockManager" value="none"/>