com.triactive.jdo.store.mapping
Class OracleBlobMapping

java.lang.Object
  com.triactive.jdo.store.mapping.Mapping
      com.triactive.jdo.store.mapping.ColumnMapping
          com.triactive.jdo.store.mapping.ByteArrayMapping
              com.triactive.jdo.store.mapping.OracleBlobMapping

All Implemented Interfaces:

PostInsertProcessing, PostUpdateProcessing, PostWriteProcessing

public class OracleBlobMapping

extends ByteArrayMapping

implements PostInsertProcessing, PostUpdateProcessing

Field Summary

Fields inherited from class com.triactive.jdo.store.mapping.ColumnMapping

col, typeInfo

Fields inherited from class com.triactive.jdo.store.mapping.Mapping

dba, fmd, type

Constructor Summary

OracleBlobMapping(DatabaseAdapter dba, java.lang.Class type)

OracleBlobMapping(DatabaseAdapter dba, FieldMetaData fmd)

Method Summary

TypeInfo	chooseColumnType(Column col) Chooses an appropriate SQL type for a column based on the column's options.
java.lang.Object	getObject(PersistenceManager pm, java.sql.ResultSet rs, int param)
java.lang.String	getSqlInsertionValue() Returns the SQL text to be included in INSERT statements when inserting a value into this mapping's column.
java.lang.String	getSqlUpdateValue() Returns the SQL text to be included in UPDATE statements when updating a value in this mapping's column.
void	mapTo(Column col) Links this mapping to a specific column.
void	postInsert(StateManager sm, java.sql.Connection conn, java.lang.Object value) Called after a SQL INSERT has been performed.
void	postUpdate(StateManager sm, java.sql.Connection conn, java.lang.Object value) Retrieve the empty BLOB locator created by the insert statement and write out the current BLOB field value to the Oracle BLOB object
void	setObject(PersistenceManager pm, java.sql.PreparedStatement ps, int param, java.lang.Object value)

Methods inherited from class com.triactive.jdo.store.mapping.ByteArrayMapping

newSqlExpression, newSqlLiteral

Methods inherited from class com.triactive.jdo.store.mapping.ColumnMapping

accessAsFieldIn, defineConstraints, defineStorage, equals, getBoolean, getByte, getChar, getColumn, getDouble, getFloat, getInt, getLong, getShort, getString, getTypeInfo, hashCode, setBoolean, setByte, setChar, setDouble, setFloat, setInt, setLong, setShort, setString

Methods inherited from class com.triactive.jdo.store.mapping.Mapping

getDefaultMappingsByType, getFieldMetaData, getType

Methods inherited from class java.lang.Object

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

Constructor Detail

OracleBlobMapping

public OracleBlobMapping(DatabaseAdapter dba,
                         java.lang.Class type)

OracleBlobMapping

public OracleBlobMapping(DatabaseAdapter dba,
                         FieldMetaData fmd)

Method Detail

mapTo

public void mapTo(Column col)

Description copied from class: ColumnMapping

Links this mapping to a specific column. Linkage involves at least two steps:

1. Calling the column's Column.mapWith(com.triactive.jdo.store.mapping.ColumnMapping) method
2. Setting this mapping's ColumnMapping.typeInfo to match the column's

This method can be called at most once for a given mapping. Subclasses may do extra work as a consequence of mapping themselves to a column, but they should always call super.mapTo(col) first.

Overrides:

mapTo in class ByteArrayMapping

chooseColumnType

public TypeInfo chooseColumnType(Column col)

Description copied from class: ColumnMapping

Chooses an appropriate SQL type for a column based on the column's options.

Overrides:

chooseColumnType in class ByteArrayMapping

getSqlInsertionValue

public java.lang.String getSqlInsertionValue()

Description copied from class: ColumnMapping

Returns the SQL text to be included in INSERT statements when inserting a value into this mapping's column. This is usually "?" to indicate a JDBC statement parameter.

Overrides:

getSqlInsertionValue in class ColumnMapping

getSqlUpdateValue

public java.lang.String getSqlUpdateValue()

Description copied from class: ColumnMapping

Returns the SQL text to be included in UPDATE statements when updating a value in this mapping's column. This is usually "?" to indicate a JDBC statement parameter.

Overrides:

getSqlUpdateValue in class ColumnMapping

setObject

public void setObject(PersistenceManager pm,
                      java.sql.PreparedStatement ps,
                      int param,
                      java.lang.Object value)

Overrides:

setObject in class ByteArrayMapping

getObject

public java.lang.Object getObject(PersistenceManager pm,
                                  java.sql.ResultSet rs,
                                  int param)

Overrides:

getObject in class ByteArrayMapping

postInsert

public void postInsert(StateManager sm,
                       java.sql.Connection conn,
                       java.lang.Object value)

Description copied from interface: PostInsertProcessing

Called after a SQL INSERT has been performed.

Specified by:

postInsert in interface PostInsertProcessing

Parameters:

sm - The state manager of the instance owning the Java object being inserted.

conn - The connection on which the INSERT has been performed.

value - The column value being inserted.

postUpdate

public void postUpdate(StateManager sm,
                       java.sql.Connection conn,
                       java.lang.Object value)

Retrieve the empty BLOB locator created by the insert statement and write out the current BLOB field value to the Oracle BLOB object

Specified by:

postUpdate in interface PostUpdateProcessing

Parameters:

sm - The state manager of the instance owning the Java object being updated.

conn - The connection on which the UPDATE has been performed.

value - The column value being updated.