com.solarmetric.rd.kodo.impl.jdbc.meta.map
Class VersionDateIndicator

java.lang.Object
  |
  +--com.solarmetric.rd.kodo.impl.jdbc.meta.Mapping
        |
        +--com.solarmetric.rd.kodo.impl.jdbc.meta.Indicator
              |
              +--com.solarmetric.rd.kodo.impl.jdbc.meta.VersionIndicator
                    |
                    +--com.solarmetric.rd.kodo.impl.jdbc.meta.map.ColumnVersionIndicator
                          |
                          +--com.solarmetric.rd.kodo.impl.jdbc.meta.map.VersionDateIndicator

public class VersionDateIndicator

extends ColumnVersionIndicator

Handles optimistic lock versioning via a lock column containing timestamps in the data store.

Note that there are potentially severe granularity issues with using Date types as Version indictators... namely that some databases are not that fine grained with the date types and should instead be using VersionNumberIndicator.

Field Summary

static java.lang.String

TYPE

Fields inherited from class com.solarmetric.rd.kodo.impl.jdbc.meta.Mapping

DEFAULT, FALSE, LOB, TRUE, UNIQUE

Constructor Summary

VersionDateIndicator()

Method Summary

protected int	getDataStoreTypeCode() Return the FieldMapping type code for the type of the column.
java.lang.String	getMappingType() Return the abbreviated name of this mapping, or the full class name if it is a custom mapping.
protected java.lang.Object	getNextVersion(java.lang.Object version) Return the next version object, given the current one (which may be null for newly-persisted objects).
protected boolean	needsRefresh(java.lang.Object mem, java.lang.Object db) Return true if mem is not up-to-date with db.

Methods inherited from class com.solarmetric.rd.kodo.impl.jdbc.meta.map.ColumnVersionIndicator

fromMappingInfo, getColumn, getJDBCType, insert, load, map, refSchemaComponents, select, setColumn, synchVersion, toMappingInfo, update

Methods inherited from class com.solarmetric.rd.kodo.impl.jdbc.meta.VersionIndicator

getDefaults, newInstance, newInstance, postLoad, toString

Methods inherited from class com.solarmetric.rd.kodo.impl.jdbc.meta.Indicator

delete, getMappingRepository, getOwnerMapping, getTable, setOwnerMapping

Methods inherited from class com.solarmetric.rd.kodo.impl.jdbc.meta.Mapping

checkIndex, createColumn, delete, getDBDictionary, getForeignKey, getLog, getSchemaGroup, insert, invalidMapping, isCustomDelete, isCustomInsert, isCustomUpdate, reverseMap, setForeignKey, update

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

TYPE

public static final java.lang.String TYPE

See Also:

Constant Field Values

Constructor Detail

VersionDateIndicator

public VersionDateIndicator()

Method Detail

getMappingType

public java.lang.String getMappingType()

Description copied from class: Mapping

Return the abbreviated name of this mapping, or the full class name if it is a custom mapping. Returns the full class name by default.

Overrides:

getMappingType in class Mapping

getDataStoreTypeCode

protected int getDataStoreTypeCode()

Description copied from class: ColumnVersionIndicator

Return the FieldMapping type code for the type of the column.

Specified by:

getDataStoreTypeCode in class ColumnVersionIndicator

getNextVersion

protected java.lang.Object getNextVersion(java.lang.Object version)

Description copied from class: ColumnVersionIndicator

Return the next version object, given the current one (which may be null for newly-persisted objects).

Specified by:

getNextVersion in class ColumnVersionIndicator

needsRefresh

protected boolean needsRefresh(java.lang.Object mem,
                               java.lang.Object db)

Description copied from class: ColumnVersionIndicator

Return true if mem is not up-to-date with db.

Specified by:

needsRefresh in class ColumnVersionIndicator