org.jpox.store.mapping
Class InterfaceMapping

java.lang.Object
  org.jpox.store.mapping.JavaTypeMapping
      org.jpox.store.mapping.MultiMapping
          org.jpox.store.mapping.ReferenceMapping
              org.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