org.datanucleus.store.rdbms.mapping.oracle
Class OracleClobRDBMSMapping

java.lang.Object
  org.datanucleus.store.mapped.mapping.AbstractDatastoreMapping
      org.datanucleus.store.rdbms.mapping.RDBMSMapping
          org.datanucleus.store.rdbms.mapping.LongVarcharRDBMSMapping
              org.datanucleus.store.rdbms.mapping.ClobRDBMSMapping
                  org.datanucleus.store.rdbms.mapping.oracle.OracleClobRDBMSMapping

All Implemented Interfaces:

org.datanucleus.store.mapped.mapping.DatastoreMapping

public class OracleClobRDBMSMapping
extends ClobRDBMSMapping

Mapping for Oracle CLOB type.

Field Summary

Fields inherited from class org.datanucleus.store.rdbms.mapping.RDBMSMapping

column, LOCALISER_RDBMS, storeMgr

Fields inherited from class org.datanucleus.store.mapped.mapping.AbstractDatastoreMapping

LOCALISER, mapping

Constructor Summary

	OracleClobRDBMSMapping(org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping, org.datanucleus.store.mapped.MappedStoreManager storeMgr, org.datanucleus.store.mapped.DatastoreField field) Constructor.
protected	OracleClobRDBMSMapping(org.datanucleus.store.mapped.MappedStoreManager storeMgr, org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping) Constructor

Method Summary

String	getInsertionInputParameter() Accessor for the string to put in any retrieval datastore statement for this field.
Object	getObject(Object rs, int param)
String	getString(Object rs, int param)
SQLTypeInfo	getTypeInfo() Accessor for the type info for this datastore field
String	getUpdateInputParameter() Accessor for the string to put in any update datastore statements for this field.
boolean	includeInFetchStatement() Whether this mapping is included in the fetch statement.
boolean	insertValuesOnInsert() Accessor for whether this mapping requires values inserting on an INSERT.
static void	updateClobColumn(org.datanucleus.store.ObjectProvider sm, org.datanucleus.store.mapped.DatastoreContainerObject datastoreContainer, org.datanucleus.store.mapped.mapping.DatastoreMapping mapping, String value) Convenience method to update the contents of a CLOB column.

Methods inherited from class org.datanucleus.store.rdbms.mapping.ClobRDBMSMapping

setObject, setString

Methods inherited from class org.datanucleus.store.rdbms.mapping.LongVarcharRDBMSMapping

isStringBased

Methods inherited from class org.datanucleus.store.rdbms.mapping.RDBMSMapping

equals, failureMessage, failureMessage, getDatabaseAdapter, getDatastoreField, hashCode, initTypeInfo, isNullable

Methods inherited from class org.datanucleus.store.mapped.mapping.AbstractDatastoreMapping

failureMessage, getBoolean, getByte, getChar, getDouble, getFloat, getInt, getJavaTypeMapping, getLong, getShort, isBitBased, isBooleanBased, isDecimalBased, isIntegerBased, setBoolean, setByte, setChar, setDouble, setFloat, setInt, setLong, setShort

Methods inherited from class java.lang.Object

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

Constructor Detail

OracleClobRDBMSMapping

protected OracleClobRDBMSMapping(org.datanucleus.store.mapped.MappedStoreManager storeMgr,
                                 org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping)

Constructor

Parameters:

storeMgr - Store Manager

mapping - The Java type mapping

OracleClobRDBMSMapping

public OracleClobRDBMSMapping(org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping,
                              org.datanucleus.store.mapped.MappedStoreManager storeMgr,
                              org.datanucleus.store.mapped.DatastoreField field)

Constructor.

Parameters:

mapping - The java type mapping for the field.

storeMgr - Manager for the store

field - The field

Method Detail

getTypeInfo

public SQLTypeInfo getTypeInfo()

Description copied from class: ClobRDBMSMapping

Accessor for the type info for this datastore field

Overrides:

getTypeInfo in class ClobRDBMSMapping

Returns:

Type info for the datastore field

getInsertionInputParameter

public String getInsertionInputParameter()

Description copied from class: RDBMSMapping

Accessor for the string to put in any retrieval datastore statement for this field. In RDBMS, this is typically a ? to be used in JDBC statements.

Overrides:

getInsertionInputParameter in class RDBMSMapping

Returns:

The input parameter

includeInFetchStatement

public boolean includeInFetchStatement()

Description copied from class: RDBMSMapping

Whether this mapping is included in the fetch statement.

Overrides:

includeInFetchStatement in class RDBMSMapping

Returns:

Whether to include in fetch statement

getUpdateInputParameter

public String getUpdateInputParameter()

Description copied from class: RDBMSMapping

Accessor for the string to put in any update datastore statements for this field. In RDBMS, this is typically a ? to be used in JDBC statements.

Overrides:

getUpdateInputParameter in class RDBMSMapping

Returns:

The input parameter.

insertValuesOnInsert

public boolean insertValuesOnInsert()

Accessor for whether this mapping requires values inserting on an INSERT.

Overrides:

insertValuesOnInsert in class RDBMSMapping

Returns:

Whether values are to be inserted into this mapping on an INSERT

getString

public String getString(Object rs,
                        int param)

Specified by:

getString in interface org.datanucleus.store.mapped.mapping.DatastoreMapping

Overrides:

getString in class ClobRDBMSMapping

getObject

public Object getObject(Object rs,
                        int param)

Specified by:

getObject in interface org.datanucleus.store.mapped.mapping.DatastoreMapping

Overrides:

getObject in class ClobRDBMSMapping

updateClobColumn

public static void updateClobColumn(org.datanucleus.store.ObjectProvider sm,
                                    org.datanucleus.store.mapped.DatastoreContainerObject datastoreContainer,
                                    org.datanucleus.store.mapped.mapping.DatastoreMapping mapping,
                                    String value)

Convenience method to update the contents of a CLOB column. Oracle requires that a CLOB is initialised with EMPTY_CLOB() and then you retrieve the column and update its CLOB value. Performs a statement

 SELECT {clobColumn} FROM TABLE WHERE ID=? FOR UPDATE
 

and then updates the Clob value returned.

Parameters:

sm - StateManager of the object

datastoreContainer - Table storing the CLOB column

mapping - Datastore mapping for the CLOB column

value - The value to store in the CLOB

Throws:

org.datanucleus.exceptions.NucleusObjectNotFoundException

org.datanucleus.exceptions.NucleusDataStoreException