org.jpox.store.mapping
Class InterfaceMapping

java.lang.Object
  extended byorg.jpox.store.mapping.JavaTypeMapping
      extended byorg.jpox.store.mapping.MultiMapping
          extended byorg.jpox.store.mapping.ReferenceMapping
              extended byorg.jpox.store.mapping.InterfaceMapping

public class InterfaceMapping
extends ReferenceMapping

Mapping for Interface fields.

Version:
$Revision: 1.25 $

Field Summary
 
Fields inherited from class org.jpox.store.mapping.MultiMapping
datastoreContainer, javaTypeMappings
 
Fields inherited from class org.jpox.store.mapping.JavaTypeMapping
datastoreMappings, dba, fmd, LOCALISER, referenceMapping, type
 
Constructor Summary
InterfaceMapping(DatastoreAdapter dba, AbstractPropertyMetaData fmd, DatastoreContainerObject datastoreContainer, ClassLoaderResolver clr)
          Constructor.
InterfaceMapping(DatastoreAdapter dba, java.lang.String type)
          Constructor.
 
Method Summary
 java.lang.Object getObject(PersistenceManager pm, java.lang.Object rs, int[] pos)
          Method to retrieve an object of this type from the ResultSet.
 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.
 void setImplementationClasses(java.lang.String implementationClasses)
          Set the implementation classes.
 
Methods inherited from class org.jpox.store.mapping.ReferenceMapping
createColumns, getJavaType, getSampleValue
 
Methods inherited from class org.jpox.store.mapping.MultiMapping
addJavaTypeMapping, getDatastoreContainer, getDataStoreMapping, getJavaTypeMapping, getNumberOfDatastoreFields, includeInFetchStatement, includeInInsertStatement, includeInUpdateStatement, setObject, setObject
 
Methods inherited from class org.jpox.store.mapping.JavaTypeMapping
addDataStoreMapping, failureMessage, getBoolean, getByte, getChar, getDataStoreMappings, getDouble, getFieldMetaData, getFloat, getInt, getLong, getObject, getReferenceMapping, getShort, getString, getType, isNullable, setBoolean, setByte, setChar, setDefault, setDouble, setFloat, setInt, setLong, setReferenceMapping, setShort, setString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

InterfaceMapping

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

Parameters:
dba - Datastore adapter
type - The type of the (interface) field

InterfaceMapping

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

Parameters:
dba - Datastroe adapter
fmd - MetaData for the (interface) field
datastoreContainer - Table where the interface is to be stored
clr - The ClassLoaderResolver
Method Detail

setImplementationClasses

public void setImplementationClasses(java.lang.String implementationClasses)
Set the implementation classes. If the field defined what the implementation classes are, this mapping will only use it

Parameters:
implementationClasses - the implementation classes string

getObject

public java.lang.Object getObject(PersistenceManager pm,
                                  java.lang.Object rs,
                                  int[] pos)
Method to retrieve an object of this type from the ResultSet.

Overrides:
getObject in class MultiMapping
Parameters:
pm - Persistence Manager
rs - The ResultSet
pos - The parameter positions
Returns:
The 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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