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java.lang.Objectorg.hibernate.id.SequenceGenerator
public class SequenceGenerator
sequence
Generates long values using an oracle-style sequence. A higher
performance algorithm is SequenceHiLoGenerator.
Mapping parameters supported: sequence, parameters.
SequenceHiLoGenerator
,
TableHiLoGenerator
Field Summary | |
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static java.lang.String |
PARAMETERS
The parameters parameter, appended to the create sequence DDL. |
static java.lang.String |
SEQUENCE
The sequence parameter |
Fields inherited from interface org.hibernate.id.PersistentIdentifierGenerator |
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CATALOG, PK, SCHEMA, SQL_STATEMENT_LOGGER, TABLE, TABLES |
Fields inherited from interface org.hibernate.id.IdentifierGenerator |
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ENTITY_NAME |
Constructor Summary | |
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SequenceGenerator()
|
Method Summary | |
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void |
configure(Type type,
java.util.Properties params,
Dialect dialect)
Configure this instance, given the value of parameters specified by the user as <param> elements. |
java.io.Serializable |
generate(SessionImplementor session,
java.lang.Object obj)
Generate a new identifier. |
java.lang.Object |
generatorKey()
Return a key unique to the underlying database objects. |
java.lang.String |
getSequenceName()
|
java.lang.String[] |
sqlCreateStrings(Dialect dialect)
The SQL required to create the underlying database objects. |
java.lang.String[] |
sqlDropStrings(Dialect dialect)
The SQL required to remove the underlying database objects. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final java.lang.String SEQUENCE
public static final java.lang.String PARAMETERS
Constructor Detail |
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public SequenceGenerator()
Method Detail |
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public void configure(Type type, java.util.Properties params, Dialect dialect) throws MappingException
Configurable
configure
in interface Configurable
params
- param values, keyed by parameter name
MappingException
public java.io.Serializable generate(SessionImplementor session, java.lang.Object obj) throws HibernateException
IdentifierGenerator
generate
in interface IdentifierGenerator
obj
- the entity or toplevel collection for which the id is being generated
HibernateException
public java.lang.String[] sqlCreateStrings(Dialect dialect) throws HibernateException
PersistentIdentifierGenerator
sqlCreateStrings
in interface PersistentIdentifierGenerator
dialect
- The dialect against which to generate the create command(s)
HibernateException
- problem creating the create command(s)public java.lang.String[] sqlDropStrings(Dialect dialect) throws HibernateException
PersistentIdentifierGenerator
sqlDropStrings
in interface PersistentIdentifierGenerator
dialect
- The dialect against which to generate the drop command(s)
HibernateException
- problem creating the drop command(s)public java.lang.Object generatorKey()
PersistentIdentifierGenerator
generatorKey
in interface PersistentIdentifierGenerator
public java.lang.String getSequenceName()
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