public enum PersistenceProvider extends Enum<PersistenceProvider> implements QueryExtractor
Enum Constant and Description |
---|
ECLIPSELINK
EclipseLink persistence provider.
|
GENERIC_JPA
Unknown special provider.
|
HIBERNATE
Hibernate persistence provider.
|
OPEN_JPA
OpenJpa persistence provider.
|
Modifier and Type | Method and Description |
---|---|
boolean |
canExtractQuery()
Returns whether the extractor is able to extract the original query string from a given
Query . |
static PersistenceProvider |
fromEntityManager(javax.persistence.EntityManager em)
Determines the
PersistenceProvider from the given EntityManager . |
protected String |
getCountQueryPlaceholder()
Returns the placeholder to be used for simple count queries.
|
static PersistenceProvider |
valueOf(String name)
Returns the enum constant of this type with the specified name.
|
static PersistenceProvider[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared.
|
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
extractQueryString
public static final PersistenceProvider HIBERNATE
public static final PersistenceProvider ECLIPSELINK
public static final PersistenceProvider OPEN_JPA
public static final PersistenceProvider GENERIC_JPA
public static PersistenceProvider[] values()
for (PersistenceProvider c : PersistenceProvider.values()) System.out.println(c);
public static PersistenceProvider valueOf(String name)
name
- the name of the enum constant to be returned.IllegalArgumentException
- if this enum type has no constant
with the specified nameNullPointerException
- if the argument is nullpublic static PersistenceProvider fromEntityManager(javax.persistence.EntityManager em)
PersistenceProvider
from the given EntityManager
. If no special one can be
determined GENERIC_JPA
will be returned.em
- must not be null.public boolean canExtractQuery()
QueryExtractor
Query
.canExtractQuery
in interface QueryExtractor
protected String getCountQueryPlaceholder()
*
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