org.apache.openjpa.jdbc.meta.strats
Class TimestampVersionStrategy
java.lang.Object
org.apache.openjpa.jdbc.meta.strats.AbstractStrategy
org.apache.openjpa.jdbc.meta.strats.AbstractVersionStrategy
org.apache.openjpa.jdbc.meta.strats.ColumnVersionStrategy
org.apache.openjpa.jdbc.meta.strats.TimestampVersionStrategy
- All Implemented Interfaces:
- java.io.Serializable, Strategy, VersionStrategy
- Direct Known Subclasses:
- NanoPrecisionTimestampVersionStrategy
public class TimestampVersionStrategy
- extends ColumnVersionStrategy
Uses a timestamp for optimistic versioning.
- Author:
- Abe White
- See Also:
- Serialized Form
Field Summary |
static java.lang.String |
ALIAS
|
Method Summary |
java.lang.String |
getAlias()
Return the alias of this strategy. |
java.util.Map |
getBulkUpdateValues()
|
protected int |
getJavaType()
Return the code from JavaTypes for the version values this
strategy uses. |
protected java.lang.Object |
nextVersion(java.lang.Object version)
Return the next version given the current one, which may be null. |
Methods inherited from class org.apache.openjpa.jdbc.meta.strats.ColumnVersionStrategy |
checkVersion, compare, compare, compareVersion, delete, getJavaType, insert, load, map, select, update |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ALIAS
public static final java.lang.String ALIAS
- See Also:
- Constant Field Values
TimestampVersionStrategy
public TimestampVersionStrategy()
getAlias
public java.lang.String getAlias()
- Description copied from interface:
Strategy
- Return the alias of this strategy. For custom strategies, return the
full class name.
- Specified by:
getAlias
in interface Strategy
- Overrides:
getAlias
in class AbstractStrategy
getJavaType
protected int getJavaType()
- Description copied from class:
ColumnVersionStrategy
- Return the code from
JavaTypes
for the version values this
strategy uses. This method is only used during mapping installation.
- Specified by:
getJavaType
in class ColumnVersionStrategy
nextVersion
protected java.lang.Object nextVersion(java.lang.Object version)
- Description copied from class:
ColumnVersionStrategy
- Return the next version given the current one, which may be null.
- Specified by:
nextVersion
in class ColumnVersionStrategy
getBulkUpdateValues
public java.util.Map getBulkUpdateValues()
- Specified by:
getBulkUpdateValues
in interface VersionStrategy
- Overrides:
getBulkUpdateValues
in class AbstractVersionStrategy
- Returns:
- a Map specifying how to update each version
column during a bulk update.