JavaTM Platform, Enterprise Edition, v 5.0
javax.persistence
Enum FlushModeType
java.lang.Object
java.lang.Enum<FlushModeType>
javax.persistence.FlushModeType
- All Implemented Interfaces:
- Serializable, Comparable<FlushModeType>
public enum FlushModeType - extends Enum<FlushModeType>
Flush mode setting.
When queries are executed within a transaction, if
FlushModeType.AUTO is set on the Query
object, or if the flush mode setting for the persistence context
is AUTO (the default) and a flush mode setting has
not been specified for the Query object, the persistence
provider is responsible for ensuring that all updates to the state
of all entities in the persistence context which could potentially
affect the result of the query are visible to the processing
of the query. The persistence provider implementation may achieve
this by flushing those entities to the database or by some other
means. If FlushModeType.COMMIT is set, the effect
of updates made to entities in the persistence context upon
queries is unspecified.
If there is no transaction active, the persistence provider
must not flush to the database.
- Since:
- Java Persistence 1.0
Enum Constant Summary |
AUTO
(Default) Flushing to occur at query execution |
COMMIT
Flushing must occur only at transaction commit |
Method Summary |
static FlushModeType |
valueOf(String name)
Returns the enum constant of this type with the specified name. |
static FlushModeType[] |
values()
Returns an array containing the constants of this enum type, in
the order they're declared. |
COMMIT
public static final FlushModeType COMMIT
- Flushing must occur only at transaction commit
AUTO
public static final FlushModeType AUTO
- (Default) Flushing to occur at query execution
values
public static final FlushModeType[] values()
- Returns an array containing the constants of this enum type, in
the order they're declared. This method may be used to iterate
over the constants as follows:
for(FlushModeType c : FlushModeType.values())
System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in
the order they're declared
valueOf
public static FlushModeType valueOf(String name)
- Returns the enum constant of this type with the specified name.
The string must match exactly an identifier used to declare an
enum constant in this type. (Extraneous whitespace characters are
not permitted.)
- Parameters:
name - the name of the enum constant to be returned.
- Returns:
- the enum constant with the specified name
- Throws:
IllegalArgumentException - if this enum type has no constant
with the specified name
Copyright 2003 Sun Microsystems, Inc. All rights reserved
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