org.jpox.store.mapping
Class SerialisedMapping

java.lang.Object
  extended byorg.jpox.store.mapping.JavaTypeMapping
      extended byorg.jpox.store.mapping.SingleFieldMapping
          extended byorg.jpox.store.mapping.SerialisedMapping
All Implemented Interfaces:
SimpleDatastoreRepresentation
Direct Known Subclasses:
OracleSerialisedObjectMapping, SerialisedPCMapping, SerialisedReferenceMapping

public class SerialisedMapping
extends SingleFieldMapping
implements SimpleDatastoreRepresentation

Maps a field as serialised.

Version:
$Revision: 1.4 $

Field Summary
 
Fields inherited from class org.jpox.store.mapping.SingleFieldMapping
datastoreContainer, typeInfo
 
Fields inherited from class org.jpox.store.mapping.JavaTypeMapping
datastoreMappings, dba, fmd, LOCALISER, referenceMapping, type
 
Constructor Summary
SerialisedMapping(DatastoreAdapter dba, AbstractPropertyMetaData fmd, DatastoreContainerObject datastoreContainer, ClassLoaderResolver clr)
          Constructor.
SerialisedMapping(DatastoreAdapter dba, java.lang.String type)
          Constructor.
 
Method Summary
 java.lang.Class getJavaType()
          Accessor for the (Java) type of data represented here
 java.lang.Object getSampleValue()
          Accessor for a sample value for this type.
 ScalarExpression newLiteral(QueryExpression qs, java.lang.Object value)
          Creates a literal from an value.
 ScalarExpression newScalarExpression(QueryExpression qs, LogicSetExpression te)
          Creates a expression from a field name/table.
 
Methods inherited from class org.jpox.store.mapping.SingleFieldMapping
equals, getBoolean, getByte, getChar, getDatastoreContainer, getDouble, getFloat, getInt, getLong, getObject, getShort, getString, hasValue, includeInFetchStatement, includeInInsertStatement, includeInUpdateStatement, prepareDatastoreMapping, setBoolean, setByte, setChar, setDouble, setFloat, setInt, setLong, setObject, setShort, setString
 
Methods inherited from class org.jpox.store.mapping.JavaTypeMapping
addDataStoreMapping, failureMessage, getDataStoreMapping, getDataStoreMappings, getFieldMetaData, getNumberOfDatastoreFields, getObject, getReferenceMapping, getType, isNullable, setDefault, setObject, setReferenceMapping
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SerialisedMapping

public SerialisedMapping(DatastoreAdapter dba,
                         java.lang.String type)
Constructor.

Parameters:
dba - Datastore adapter
type - Type of object

SerialisedMapping

public SerialisedMapping(DatastoreAdapter dba,
                         AbstractPropertyMetaData fmd,
                         DatastoreContainerObject datastoreContainer,
                         ClassLoaderResolver clr)
Constructor.

Parameters:
dba - Datastore adapter
fmd - MetaData for the field being mapped
datastoreContainer - Container (table) to hold the field (column)
clr - ClassLoader resolver
Method Detail

getSampleValue

public java.lang.Object getSampleValue()
Accessor for a sample value for this type.

Specified by:
getSampleValue in class JavaTypeMapping
Returns:
The sample value

getJavaType

public java.lang.Class getJavaType()
Accessor for the (Java) type of data represented here

Specified by:
getJavaType in class JavaTypeMapping
Returns:
java.lang.Object

newLiteral

public ScalarExpression newLiteral(QueryExpression qs,
                                   java.lang.Object value)
Description copied from class: JavaTypeMapping
Creates a literal from an value. A string literal is enclosed in single quotes. for example: "literal". A string literal that includes a single quote is represented by two single quotes. for example: "literal''s". An exact numeric literal is a numeric value without a decimal point, such as 57, -957, +62. An approximate numeric literal is a numeric value in scientific notation, such as 7E3, -57.9E2, or a numeric value with a decimal, such as 7., -95.7, +6.2.

Specified by:
newLiteral in class JavaTypeMapping
Parameters:
qs - The Query statement
value - The object
Returns:
A Scalar Expression

newScalarExpression

public ScalarExpression newScalarExpression(QueryExpression qs,
                                            LogicSetExpression te)
Description copied from class: JavaTypeMapping
Creates a expression from a field name/table. e.g. tablename.fieldname; tablealias.fieldalias

Specified by:
newScalarExpression in class JavaTypeMapping
Parameters:
qs - The Query statement
te - the alias for the table
Returns:
A Scalar Expression


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