com.goldencode.p2j.persist

Class LocalTempTableHelper

java.lang.Object

com.goldencode.p2j.persist.TempTableHelper

com.goldencode.p2j.persist.LocalTempTableHelper

final class LocalTempTableHelper
extends TempTableHelper

Helper class which generates and caches SQL phrases to create and drop temporary tables, and to create indexes in those tables.

This class is responsible for local temporary tables support: the created tables and indices will be local to the session which created them.

Field Summary

Fields inherited from class com.goldencode.p2j.persist.TempTableHelper

database, schema, UNIQUE_SUFFIX_KEY

Constructor Summary

Constructors

Constructor and Description
LocalTempTableHelper(java.lang.Class<? extends DataModelObject> dmoIface) Constructor.

Method Summary

Modifier and Type	Method and Description
(package private) java.lang.String	getAdditionalIndexSuffix() This method will return an additional suffix to make the index unique across sessions.
(package private) java.lang.String	getCreateTableStatement() This method will return the needed create table string, which is the "create local temporary table" string.
(package private) java.util.Iterator<P2JIndex>	getIndexes(java.lang.String schema, java.lang.Class<? extends DataModelObject> dmoIface) This method will return the indexes associated with a certain DMO, as retrieved from the dmo_index.xml file.
(package private) boolean	isNotNullAllowed() Indicate whether non-nullable columns are permitted.

Methods inherited from class com.goldencode.p2j.persist.TempTableHelper

get, getImplicitIndexName, getImplicitSqlIndexName, getTableName, sqlTempTableCreate, sqlTempTableDrop, sqlTempTableIndexCreate, sqlTempTableIndexDrop

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalTempTableHelper

LocalTempTableHelper(java.lang.Class<? extends DataModelObject> dmoIface)

Constructor.

Parameters:

dmoIface - DMO interface which provides the public API to the temp table.

Method Detail

getCreateTableStatement

java.lang.String getCreateTableStatement()

This method will return the needed create table string, which is the "create local temporary table" string.

Specified by:

getCreateTableStatement in class TempTableHelper

Returns:

The create table string.

getAdditionalIndexSuffix

java.lang.String getAdditionalIndexSuffix()

This method will return an additional suffix to make the index unique across sessions.

Specified by:

getAdditionalIndexSuffix in class TempTableHelper

Returns:

The additional suffix.

getIndexes

java.util.Iterator<P2JIndex> getIndexes(java.lang.String schema,
                                        java.lang.Class<? extends DataModelObject> dmoIface)

This method will return the indexes associated with a certain DMO, as retrieved from the dmo_index.xml file.

Specified by:

getIndexes in class TempTableHelper

Parameters:

schema - The schema used for this DMO.

dmoIface - The DMO for which to retrieve the indexes.

Returns:

An iterator for the indexes associated with this DMO.

isNotNullAllowed

boolean isNotNullAllowed()

Indicate whether non-nullable columns are permitted.

Specified by:

isNotNullAllowed in class TempTableHelper

Returns:

true if non-nullable columns are permitted, else false.