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12.2.4. Configuration
12.2.4.1. Hibernate Configuration Properties
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| Property Name | Description |
|---|---|
| hibernate.dialect |
The classname of a Hibernate
org.hibernate.dialect.Dialect. Allows Hibernate to generate SQL optimized for a particular relational database.
In most cases Hibernate will be able to choose the correct
org.hibernate.dialect.Dialect implementation, based on the JDBC metadata returned by the JDBC driver.
|
| hibernate.show_sql |
Boolean. Writes all SQL statements to console. This is an alternative to setting the log category
org.hibernate.SQL to debug.
|
| hibernate.format_sql |
Boolean. Pretty print the SQL in the log and console.
|
| hibernate.default_schema |
Qualify unqualified table names with the given schema/tablespace in generated SQL.
|
| hibernate.default_catalog |
Qualifies unqualified table names with the given catalog in generated SQL.
|
| hibernate.session_factory_name |
The
org.hibernate.SessionFactory will be automatically bound to this name in JNDI after it has been created. For example, jndi/composite/name.
|
| hibernate.max_fetch_depth |
Sets a maximum "depth" for the outer join fetch tree for single-ended associations (one-to-one, many-to-one). A
0 disables default outer join fetching. The recommended value is between 0 and 3.
|
| hibernate.default_batch_fetch_size |
Sets a default size for Hibernate batch fetching of associations. The recommended values are
4, 8, and 16.
|
| hibernate.default_entity_mode |
Sets a default mode for entity representation for all sessions opened from this
SessionFactory. Values include: dynamic-map, dom4j, pojo.
|
| hibernate.order_updates |
Boolean. Forces Hibernate to order SQL updates by the primary key value of the items being updated. This will result in fewer transaction deadlocks in highly concurrent systems.
|
| hibernate.generate_statistics |
Boolean. If enabled, Hibernate will collect statistics useful for performance tuning.
|
| hibernate.use_identifier_rollback |
Boolean. If enabled, generated identifier properties will be reset to default values when objects are deleted.
|
| hibernate.use_sql_comments |
Boolean. If turned on, Hibernate will generate comments inside the SQL, for easier debugging. Default value is
false.
|
| hibernate.id.new_generator_mappings |
Boolean. This property is relevant when using
@GeneratedValue. It indicates whether or not the new IdentifierGenerator implementations are used for javax.persistence.GenerationType.AUTO, javax.persistence.GenerationType.TABLE and javax.persistence.GenerationType.SEQUENCE. Default value is true.
|
Important
For
hibernate.id.new_generator_mappings, new applications should keep the default value of true. Existing applications that used Hibernate 3.3.x may need to change it to false to continue using a sequence object or table based generator, and maintain backward compatibility.
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