kodo.jdbc.meta
Class ClobFieldMapping

java.lang.Object
  |
  +--kodo.meta.DelegatingExtensions
        |
        +--kodo.meta.DelegatingFieldMetaData
              |
              +--kodo.jdbc.meta.FieldMapping
                    |
                    +--kodo.jdbc.meta.ReferenceFieldMapping
                          |
                          +--kodo.jdbc.meta.ColumnFieldMapping
                                |
                                +--kodo.jdbc.meta.ClobFieldMapping

All Implemented Interfaces:

Comparable, Extensions, FieldMetaData, JDBCTypes, JDOTypes, Mapping

public class ClobFieldMapping

extends ColumnFieldMapping

Maps a CLOB.

Field Summary

static String

TYPE

Fields inherited from class kodo.jdbc.meta.FieldMapping

AUTO_INCREMENT, DELETE_ACTION, ELEMENT_DELETE_ACTION, ELEMENT_INDEXED, ELEMENT_SIZE, FIELD_MAP, INDEXED, KEY_DELETE_ACTION, KEY_INDEXED, KEY_SIZE, REF_DELETE_ACTION, REF_INDEXED, SIZE, VALUE_DELETE_ACTION, VALUE_INDEXED, VALUE_SIZE

Fields inherited from interface kodo.jdbc.meta.JDBCTypes

TYPE_ASCII_STREAM, TYPE_BINARY_STREAM, TYPE_BLOB, TYPE_BYTES, TYPE_CHAR_STREAM, TYPE_CLOB, TYPE_JDBC_DEFAULT, TYPE_REF, TYPE_SQL_ARRAY, TYPE_SQL_DATE, TYPE_SQL_OBJECT, TYPE_TIME, TYPE_TIMESTAMP

Fields inherited from interface kodo.meta.JDOTypes

TYPE_ARRAY, TYPE_BIGDECIMAL, TYPE_BIGINTEGER, TYPE_BOOLEAN, TYPE_BOOLEAN_OBJ, TYPE_BYTE, TYPE_BYTE_OBJ, TYPE_CHAR, TYPE_CHAR_OBJ, TYPE_COLLECTION, TYPE_DATE, TYPE_DOUBLE, TYPE_DOUBLE_OBJ, TYPE_FCO, TYPE_FLOAT, TYPE_FLOAT_OBJ, TYPE_INT, TYPE_INT_OBJ, TYPE_LOCALE, TYPE_LONG, TYPE_LONG_OBJ, TYPE_MAP, TYPE_NUMBER, TYPE_OBJECT, TYPE_PC_OBJECT, TYPE_SHORT, TYPE_SHORT_OBJ, TYPE_STRING

Fields inherited from interface kodo.meta.FieldMetaData

DEPENDENT, ELEMENT_DEPENDENT, ELEMENT_TYPE, EXTERNALIZER, FACTORY, FETCH_GROUP, INVERSE_OWNER, KEY_DEPENDENT, KEY_TYPE, LRS, MANAGE_NONE, MANAGE_PERSISTENT, MANAGE_TRANSACTIONAL, NULL_DEFAULT, NULL_EXCEPTION, NULL_NONE, VALUE_DEPENDENT, VALUE_TYPE

Constructor Summary

ClobFieldMapping(FieldMetaData meta)
Constructor.

Method Summary

void	fromMappingInfo(MappingInfo info, boolean adapt) Deserialize this mapping from a simple MappingInfo instance parsed from XML or some other format.
String	getMappingType() Return the abbreviated name of this mapping, or the full class name if it is a custom mapping.
void	load(KodoStateManager sm, JDBCStoreManager store, JDBCFetchConfiguration fetch) Load secondary data using a connection from the store manager.
void	load(KodoStateManager sm, JDBCStoreManager store, JDBCFetchConfiguration fetch, Result res) Load virtual row data; the given result is not guaranteed to contain data for this field, so the field mapping should make sure the result contains its needed column data before loading.
Object	loadProjection(JDBCStoreManager store, JDBCFetchConfiguration fetch, Result res) Load this field value using the given result.
boolean	map() Map a new instance of this mapping type.
void	reverseMap(SchemaGroup schema, ReverseMappingTool tool) Create mappings from the schema, using the given tool.
int	select(Select sel, KodoStateManager sm, JDBCStoreManager store, JDBCFetchConfiguration fetch, int eagerMode) Select the virtual row columns of this mapping.
protected void	update(KodoStateManager sm, Row row) Update this column with the current value into the given row.

Methods inherited from class kodo.jdbc.meta.ColumnFieldMapping

appendIsNotNull, appendIsNull, checkNull, deleteEmbedded, getColumn, getColumns, getDataStoreTypeCode, getJDBCType, insert, join, nullEmbedded, refSchemaComponents, setColumn, toMappingInfo, update

Methods inherited from class kodo.jdbc.meta.ReferenceFieldMapping

createRefForeignKey, delete, fromMappingInfo, getJoinedRow, getRefForeignKey, getRefJoinType, getSelectJoins, getTable, join, setRefForeignKey, setRefForeignKey, setRefJoinType, wherePrimaryKey, whereRefForeignKey

Methods inherited from class kodo.jdbc.meta.FieldMapping

appendIsEmpty, containsSelectTables, delete, deleteEmbedded, getDataStoreValue, getDBDictionary, getDeclaredElementTypeMapping, getDeclaredElementTypeMetaData, getDeclaredKeyTypeMapping, getDeclaredKeyTypeMetaData, getDeclaredTypeMapping, getDeclaredTypeMetaData, getDefaults, getDeleteAction, getElementDeleteAction, getElementIndexed, getElementSize, getElementTypeMapping, getElementTypeMetaData, getFieldMappingName, getIndexed, getInverseOwnerMapping, getInverseOwnerMetaData, getKeyColumns, getKeyDataStoreValue, getKeyDeleteAction, getKeyIndexed, getKeySize, getKeyTypeMapping, getKeyTypeMetaData, getMappingRepository, getOwner, getOwnerMapping, getRefDeleteAction, getRefIndexed, getSize, getTypeMapping, getTypeMetaData, insert, invalidateResolve, isAutoIncrement, isCustomDelete, isCustomDeleteEmbedded, isCustomInsert, isCustomNullEmbedded, isCustomUpdate, isDeleteActionDeferred, isElementDeleteActionDeferred, isKeyDeleteActionDeferred, isRefDeleteActionDeferred, isResolved, joinKey, joinKeyRelation, joinRelation, loadKeyProjection, newInstance, nullEmbedded, resolve, selectEager, setAutoIncrement, setDeleteAction, setElementDeleteAction, setElementIndexed, setElementSize, setFieldMappingName, setIndexed, setKeyDeleteAction, setKeyIndexed, setKeySize, setOwner, setRefDeleteAction, setRefIndexed, setSize, supportsTwoPartSelect, update

Methods inherited from class kodo.meta.DelegatingFieldMetaData

compareTo, equals, getComparator, getDeclaredElementType, getDeclaredElementTypeCode, getDeclaredIndex, getDeclaredKeyType, getDeclaredKeyTypeCode, getDeclaredType, getDeclaredTypeCode, getDelegate, getElementType, getElementTypeCode, getElementTypeName, getExternalizer, getExternalizerMethod, getExternalValue, getFactory, getFactoryMethod, getFetchGroup, getFieldFlag, getFieldValue, getFullName, getIndex, getInnermostDelegate, getInverseOwner, getKeyType, getKeyTypeCode, getKeyTypeName, getManagement, getName, getNullValue, getPrimaryKeyIndex, getProxyType, getType, getTypeCode, getTypeName, hashCode, isDefaultFetchGroupExplicit, isDependent, isElementDependent, isElementEmbedded, isEmbedded, isExplicit, isInDefaultFetchGroup, isKeyDependent, isKeyEmbedded, isLRS, isPrimaryKey, isTransient, setComparator, setDeclaredElementType, setDeclaredElementTypeCode, setDeclaredIndex, setDeclaredKeyType, setDeclaredKeyTypeCode, setDeclaredType, setDeclaredTypeCode, setDependent, setElementDependent, setElementEmbedded, setElementTypeName, setEmbedded, setExplicit, setExternalizer, setFactory, setFetchGroup, setInDefaultFetchGroup, setIndex, setInverseOwner, setKeyDependent, setKeyEmbedded, setKeyTypeName, setLRS, setManagement, setName, setNullValue, setPrimaryKey, setPrimaryKeyIndex, setProxyType, setTransient, setTypeName, toString

Methods inherited from class kodo.meta.DelegatingExtensions

addExtension, addExtension, getBooleanExtension, getBooleanExtension, getDoubleExtension, getDoubleExtension, getEmbeddedExtensions, getEmbeddedExtensions, getExtensionKeys, getExtensionKeys, getExtensionVendors, getIntExtension, getIntExtension, getObjectExtension, getObjectExtension, getStringExtension, getStringExtension, hasExtension, hasExtension, isEmpty, removeEmbeddedExtensions, removeEmbeddedExtensions, removeExtension, removeExtension

Methods inherited from class java.lang.Object

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

Methods inherited from interface kodo.meta.Extensions

addExtension, addExtension, getBooleanExtension, getBooleanExtension, getDoubleExtension, getDoubleExtension, getEmbeddedExtensions, getEmbeddedExtensions, getExtensionKeys, getExtensionKeys, getExtensionVendors, getIntExtension, getIntExtension, getObjectExtension, getObjectExtension, getStringExtension, getStringExtension, hasExtension, hasExtension, isEmpty, removeEmbeddedExtensions, removeEmbeddedExtensions, removeExtension, removeExtension

Field Detail

TYPE

public static final String TYPE

Constructor Detail

ClobFieldMapping

public ClobFieldMapping(FieldMetaData meta)

Constructor. Supply underlying metadata.

Method Detail

getMappingType

public String getMappingType()

Description copied from interface: Mapping

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

fromMappingInfo

public void fromMappingInfo(MappingInfo info,
                            boolean adapt)

Description copied from interface: Mapping

Deserialize this mapping from a simple MappingInfo instance parsed from XML or some other format. If the info is incompatible and adapt is true, try to adapt to the new info. This method must validate the given mapping information using the SchemaGroup.findTable(kodo.jdbc.schema.Table) method to find any needed tables, the Table.getColumn(java.lang.String) method to retrieve columns from those tables, and the Column.isCompatible(int, int) method to check all column types. This validation is important, as some schema groups use these methods to build themselves up dynamically rather than reading schema information from the database.

Overrides:

fromMappingInfo in class ColumnFieldMapping

Following copied from interface: kodo.jdbc.meta.Mapping

Throws:

MappingInfoNotFoundException - if the given info is invalid

map

public boolean map()

Description copied from interface: Mapping

Map a new instance of this mapping type. If the underlying metadata cannot be mapped using this type, return false.

Overrides:

map in class ColumnFieldMapping

reverseMap

public void reverseMap(SchemaGroup schema,
                       ReverseMappingTool tool)

Description copied from interface: Mapping

Create mappings from the schema, using the given tool. Implement this method if you want the class mapping to be a candidate when reverse-mapping a schema to java classes. Note that this method will be invoked on a template instance, so you cannot rely on the metadata or owning repository being set.

Overrides:

reverseMap in class FieldMapping

select

public int select(Select sel,
                  KodoStateManager sm,
                  JDBCStoreManager store,
                  JDBCFetchConfiguration fetch,
                  int eagerMode)

Description copied from class: FieldMapping

Select the virtual row columns of this mapping.

Overrides:

select in class ColumnFieldMapping

Following copied from class: kodo.jdbc.meta.FieldMapping

Parameters:

sel - the select to add to

sm - the instance being loaded, or null if not initialized yet or selecting for multiple instances

store - the current store manager

fetch - fetch configuration

eagerMode - the eager fetch mode to use; this may be more restrictive than the mode of the fetch configuration

Returns:

> 0 if this mapping requires the selected data (if any), 0 if it selected data but does not require it, or < 0 if no data was selected

load

public void load(KodoStateManager sm,
                 JDBCStoreManager store,
                 JDBCFetchConfiguration fetch,
                 Result res)
          throws SQLException

Description copied from class: FieldMapping

Load virtual row data; the given result is not guaranteed to contain data for this field, so the field mapping should make sure the result contains its needed column data before loading.

Overrides:

load in class FieldMapping

load

public void load(KodoStateManager sm,
                 JDBCStoreManager store,
                 JDBCFetchConfiguration fetch)
          throws SQLException

Description copied from class: FieldMapping

Load secondary data using a connection from the store manager.

Overrides:

load in class ColumnFieldMapping

loadProjection

public Object loadProjection(JDBCStoreManager store,
                             JDBCFetchConfiguration fetch,
                             Result res)
                      throws SQLException

Description copied from class: FieldMapping

Load this field value using the given result. This method will only be called if this field does not represent a FCO relation. The result will contain the columns from FieldMapping.getColumns().

Overrides:

loadProjection in class FieldMapping

update

protected void update(KodoStateManager sm,
                      Row row)
               throws SQLException

Description copied from class: ColumnFieldMapping

Update this column with the current value into the given row.

Overrides:

update in class ColumnFieldMapping