org.datanucleus.store.rdbms.scostore
Class BackingStoreHelper

java.lang.Object
  org.datanucleus.store.rdbms.scostore.BackingStoreHelper

public class BackingStoreHelper
extends java.lang.Object

Series of helper methods for use with RDBMS backing stores.

Constructor Summary

BackingStoreHelper()

Method Summary

static int	populateElementDiscriminatorInStatement(org.datanucleus.ObjectManager om, java.sql.PreparedStatement ps, int jdbcPosition, boolean includeSubclasses, org.datanucleus.store.mapped.scostore.ElementContainerStore.ElementInfo info, org.datanucleus.ClassLoaderResolver clr) Convenience method to populate the passed PreparedStatement with the value from the element discriminator, optionally including all subclasses of the element type.
static int	populateElementInStatement(org.datanucleus.ObjectManager om, java.lang.Object ps, java.lang.Object element, int jdbcPosition, org.datanucleus.store.mapped.mapping.JavaTypeMapping elementMapping) Convenience method to populate the passed PreparedStatement with the value for the element.
static int	populateEmbeddedElementFieldsInStatement(org.datanucleus.StateManager sm, java.lang.Object element, java.lang.Object ps, int jdbcPosition, org.datanucleus.metadata.AbstractMemberMetaData ownerFieldMetaData, org.datanucleus.store.mapped.mapping.JavaTypeMapping elementMapping, org.datanucleus.metadata.AbstractClassMetaData emd, org.datanucleus.store.mapped.scostore.BaseContainerStore bcs) Convenience method to populate the passed PreparedStatement with the field values from the embedded element starting at the specified jdbc position.
static int	populateEmbeddedKeyFieldsInStatement(org.datanucleus.StateManager sm, java.lang.Object key, java.sql.PreparedStatement ps, int jdbcPosition, JoinTable joinTable, org.datanucleus.store.mapped.scostore.AbstractMapStore mapStore) Convenience method to populate the passed PreparedStatement with the field values from the embedded map key starting at the specified jdbc position.
static int	populateEmbeddedValueFieldsInStatement(org.datanucleus.StateManager sm, java.lang.Object value, java.sql.PreparedStatement ps, int jdbcPosition, JoinTable joinTable, org.datanucleus.store.mapped.scostore.AbstractMapStore mapStore) Convenience method to populate the passed PreparedStatement with the field values from the embedded map value starting at the specified jdbc position.
static int	populateKeyInStatement(org.datanucleus.ObjectManager om, java.sql.PreparedStatement ps, java.lang.Object key, int jdbcPosition, org.datanucleus.store.mapped.mapping.JavaTypeMapping keyMapping) Convenience method to populate the passed PreparedStatement with the value for the map key.
static int	populateOrderInStatement(org.datanucleus.ObjectManager om, java.lang.Object ps, int idx, int jdbcPosition, org.datanucleus.store.mapped.mapping.JavaTypeMapping orderMapping) Convenience method to populate the passed PreparedStatement with the value for the order index.
static int	populateOwnerInStatement(org.datanucleus.StateManager sm, org.datanucleus.ObjectManager om, java.lang.Object ps, int jdbcPosition, org.datanucleus.store.mapped.scostore.BaseContainerStore bcs) Convenience method to populate the passed PreparedStatement with the value from the owner.
static int	populateRelationDiscriminatorInStatement(org.datanucleus.ObjectManager om, java.sql.PreparedStatement ps, int jdbcPosition, org.datanucleus.store.mapped.scostore.ElementContainerStore ecs) Convenience method to populate the passed PreparedStatement with the value for the distinguisher value.
static int	populateValueInStatement(org.datanucleus.ObjectManager om, java.sql.PreparedStatement ps, java.lang.Object value, int jdbcPosition, org.datanucleus.store.mapped.mapping.JavaTypeMapping valueMapping) Convenience method to populate the passed PreparedStatement with the value for the map value.

Methods inherited from class java.lang.Object

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

Constructor Detail

BackingStoreHelper

public BackingStoreHelper()

Method Detail

populateOwnerInStatement

public static int populateOwnerInStatement(org.datanucleus.StateManager sm,
                                           org.datanucleus.ObjectManager om,
                                           java.lang.Object ps,
                                           int jdbcPosition,
                                           org.datanucleus.store.mapped.scostore.BaseContainerStore bcs)

Convenience method to populate the passed PreparedStatement with the value from the owner.

Parameters:

sm - State Manager

om - Object Manager

ps - The PreparedStatement

jdbcPosition - Position in JDBC statement to populate

Returns:

The next position in the JDBC statement

populateRelationDiscriminatorInStatement

public static int populateRelationDiscriminatorInStatement(org.datanucleus.ObjectManager om,
                                                           java.sql.PreparedStatement ps,
                                                           int jdbcPosition,
                                                           org.datanucleus.store.mapped.scostore.ElementContainerStore ecs)

Convenience method to populate the passed PreparedStatement with the value for the distinguisher value.

Parameters:

om - Object Manager

ps - The PreparedStatement

jdbcPosition - Position in JDBC statement to populate

Returns:

The next position in the JDBC statement

populateOrderInStatement

public static int populateOrderInStatement(org.datanucleus.ObjectManager om,
                                           java.lang.Object ps,
                                           int idx,
                                           int jdbcPosition,
                                           org.datanucleus.store.mapped.mapping.JavaTypeMapping orderMapping)

Convenience method to populate the passed PreparedStatement with the value for the order index.

Parameters:

om - Object Manager

ps - The PreparedStatement

idx - The order value

jdbcPosition - Position in JDBC statement to populate

orderMapping - The order mapping

Returns:

The next position in the JDBC statement

populateElementInStatement

public static int populateElementInStatement(org.datanucleus.ObjectManager om,
                                             java.lang.Object ps,
                                             java.lang.Object element,
                                             int jdbcPosition,
                                             org.datanucleus.store.mapped.mapping.JavaTypeMapping elementMapping)

Convenience method to populate the passed PreparedStatement with the value for the element. Not used with embedded PC elements.

Parameters:

om - Object Manager

ps - The PreparedStatement

element - The element

jdbcPosition - Position in JDBC statement to populate

Returns:

The next position in the JDBC statement

populateKeyInStatement

public static int populateKeyInStatement(org.datanucleus.ObjectManager om,
                                         java.sql.PreparedStatement ps,
                                         java.lang.Object key,
                                         int jdbcPosition,
                                         org.datanucleus.store.mapped.mapping.JavaTypeMapping keyMapping)

Convenience method to populate the passed PreparedStatement with the value for the map key. Not used with embedded PC keys.

Parameters:

om - Object Manager

ps - The PreparedStatement

key - The key

jdbcPosition - Position in JDBC statement to populate

keyMapping - The key mapping

Returns:

The next position in the JDBC statement

populateValueInStatement

public static int populateValueInStatement(org.datanucleus.ObjectManager om,
                                           java.sql.PreparedStatement ps,
                                           java.lang.Object value,
                                           int jdbcPosition,
                                           org.datanucleus.store.mapped.mapping.JavaTypeMapping valueMapping)

Convenience method to populate the passed PreparedStatement with the value for the map value. Not used with embedded PC values.

Parameters:

om - Object Manager

ps - The PreparedStatement

value - The value

jdbcPosition - Position in JDBC statement to populate

valueMapping - The value mapping

Returns:

The next position in the JDBC statement

populateElementDiscriminatorInStatement

public static int populateElementDiscriminatorInStatement(org.datanucleus.ObjectManager om,
                                                          java.sql.PreparedStatement ps,
                                                          int jdbcPosition,
                                                          boolean includeSubclasses,
                                                          org.datanucleus.store.mapped.scostore.ElementContainerStore.ElementInfo info,
                                                          org.datanucleus.ClassLoaderResolver clr)

Convenience method to populate the passed PreparedStatement with the value from the element discriminator, optionally including all subclasses of the element type.

Parameters:

om - Object Manager

ps - The PreparedStatement

jdbcPosition - Position in JDBC statement to populate

includeSubclasses - Whether to include subclasses

info - The element information

clr - ClassLoader resolver

Returns:

The next position in the JDBC statement

populateEmbeddedElementFieldsInStatement

public static int populateEmbeddedElementFieldsInStatement(org.datanucleus.StateManager sm,
                                                           java.lang.Object element,
                                                           java.lang.Object ps,
                                                           int jdbcPosition,
                                                           org.datanucleus.metadata.AbstractMemberMetaData ownerFieldMetaData,
                                                           org.datanucleus.store.mapped.mapping.JavaTypeMapping elementMapping,
                                                           org.datanucleus.metadata.AbstractClassMetaData emd,
                                                           org.datanucleus.store.mapped.scostore.BaseContainerStore bcs)

Convenience method to populate the passed PreparedStatement with the field values from the embedded element starting at the specified jdbc position.

Parameters:

sm - State Manager of the owning container

element - The embedded element

ps - The PreparedStatement

jdbcPosition - JDBC position in the statement to start at

ownerFieldMetaData - The meta data for the owner field

bcs - Container store

Returns:

The next JDBC position

populateEmbeddedKeyFieldsInStatement

public static int populateEmbeddedKeyFieldsInStatement(org.datanucleus.StateManager sm,
                                                       java.lang.Object key,
                                                       java.sql.PreparedStatement ps,
                                                       int jdbcPosition,
                                                       JoinTable joinTable,
                                                       org.datanucleus.store.mapped.scostore.AbstractMapStore mapStore)

Convenience method to populate the passed PreparedStatement with the field values from the embedded map key starting at the specified jdbc position.

Parameters:

sm - State Manager of the owning container

key - The embedded key

ps - The PreparedStatement

jdbcPosition - JDBC position in the statement to start at

joinTable - The Join table where the values are embedded

mapStore - the map store

Returns:

The next JDBC position

populateEmbeddedValueFieldsInStatement

public static int populateEmbeddedValueFieldsInStatement(org.datanucleus.StateManager sm,
                                                         java.lang.Object value,
                                                         java.sql.PreparedStatement ps,
                                                         int jdbcPosition,
                                                         JoinTable joinTable,
                                                         org.datanucleus.store.mapped.scostore.AbstractMapStore mapStore)

Convenience method to populate the passed PreparedStatement with the field values from the embedded map value starting at the specified jdbc position.

Parameters:

sm - State Manager of the owning container

value - The embedded value

ps - The PreparedStatement

jdbcPosition - JDBC position in the statement to start at

joinTable - The Join table where the values are embedded

mapStore - The map store

Returns:

The next JDBC position