org.exolab.castor.jdo.engine
Class JDOMappingLoader

java.lang.Object
  org.exolab.castor.mapping.loader.AbstractMappingLoader2
      org.exolab.castor.mapping.loader.AbstractMappingLoader
          org.exolab.castor.jdo.engine.JDOMappingLoader

All Implemented Interfaces:

MappingLoader

public final class JDOMappingLoader
extends AbstractMappingLoader

A JDO implementation of mapping helper. Creates JDO class descriptors from the mapping file.

Version:

$Revision: 8294 $ $Date: 2006-04-13 07:37:49 -0600 (Thu, 13 Apr 2006) $

Author:

Assaf Arkin, Ralf Joachim

Nested Class Summary

Nested classes/interfaces inherited from class org.exolab.castor.mapping.loader.AbstractMappingLoader

AbstractMappingLoader.TypeInfoReference

Field Summary

Fields inherited from class org.exolab.castor.mapping.loader.AbstractMappingLoader

EMPTY_ARGS, STRING_ARG, VALUE_OF

Constructor Summary

JDOMappingLoader(ClassLoader loader)
Creates an instance of JDOMappingLoader, providing a ClassLoader instance.

Method Summary

protected ClassDescriptor	createClassDescriptor(ClassMapping classMapping)
protected FieldDescriptorImpl	createFieldDesc(Class javaClass, FieldMapping fieldMap)
static String	definition2param(String sqlTypeDef) Extracts parameter for type convertor from the SQL type definition of the form "SQL_TYPE_NAME[PARAMETER]".
static String	definition2type(String sqlTypeDef) Extracts SQL type name from the the SQL type definition of the form "SQL_TYPE_NAME[PARAMETER]".
protected FieldDescriptor	findIdentityByName(List<FieldDescriptor> fldList, String idName, Class javaClass)
BindingType	getBindingType()
protected String[]	getSqlTypes(FieldMapping fieldMap) Parse the sql type attribute to build an array of types, needed to support whitespace inside parameterized types (see Bug 1045).
protected TypeInfo	getTypeInfo(Class fieldType, CollectionHandler colHandler, FieldMapping fieldMap)
void	loadMapping(MappingRoot mapping, Object param)
protected void	resolveRelations(ClassDescriptor clsDesc) Walks through all fields of a descriptor and resolves relation ClassDescriptors by using mapping information or, if not present, resolution by file to support generated ClassDescriptors.

Methods inherited from class org.exolab.castor.mapping.loader.AbstractMappingLoader

checkFieldNameDuplicates, createClassDescriptors, createFieldDescriptors, createFieldHandler, createFieldHandlers, divideFieldDescriptors, findAccessor, getDepended, getExtended, getIdColumnIndex, getIdentityColumnNames, getInternalContext, getOrigin, getSourceType, isPrimitive, resolveType, setInternalContext

Methods inherited from class org.exolab.castor.mapping.loader.AbstractMappingLoader2

addDescriptor, clear, descriptorIterator, getClassLoader, getDescriptor, getDescriptors, isAllowRedefinition, loadMapping, setAllowRedefinitions, setClassLoader

Methods inherited from class java.lang.Object

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

Constructor Detail

JDOMappingLoader

public JDOMappingLoader(ClassLoader loader)

Creates an instance of JDOMappingLoader, providing a ClassLoader instance.

Parameters:

loader - A Custom ClassLoader instance.

Method Detail

definition2param

public static String definition2param(String sqlTypeDef)

Extracts parameter for type convertor from the SQL type definition of the form "SQL_TYPE_NAME[PARAMETER]". If the type is not parameterized, returns null.

Parameters:

sqlTypeDef - SQL type definition (e.g. char[01]).

Returns:

Parameter (e.g. "01") or null if not parameterized.

definition2type

public static String definition2type(String sqlTypeDef)

Extracts SQL type name from the the SQL type definition of the form "SQL_TYPE_NAME[PARAMETER]".

Parameters:

sqlTypeDef - SQL type definition (e.g. char[01]).

Returns:

SQL type name (e.g. "char").

getBindingType

public BindingType getBindingType()

loadMapping

public void loadMapping(MappingRoot mapping,
                        Object param)
                 throws MappingException

Specified by:

loadMapping in class AbstractMappingLoader

Throws:

MappingException

createClassDescriptor

protected ClassDescriptor createClassDescriptor(ClassMapping classMapping)
                                         throws MappingException

Specified by:

createClassDescriptor in class AbstractMappingLoader

Throws:

MappingException

findIdentityByName

protected FieldDescriptor findIdentityByName(List<FieldDescriptor> fldList,
                                             String idName,
                                             Class javaClass)
                                      throws MappingException

Throws:

MappingException

resolveRelations

protected void resolveRelations(ClassDescriptor clsDesc)

Walks through all fields of a descriptor and resolves relation ClassDescriptors by using mapping information or, if not present, resolution by file to support generated ClassDescriptors. Resolved ClassDescriptors will be set as a field's descriptor.

Specified by:

resolveRelations in class AbstractMappingLoader

Parameters:

clsDesc - The ClassDescriptor in focus.

getSqlTypes

protected String[] getSqlTypes(FieldMapping fieldMap)

Parse the sql type attribute to build an array of types, needed to support whitespace inside parameterized types (see Bug 1045).

getTypeInfo

protected TypeInfo getTypeInfo(Class fieldType,
                               CollectionHandler colHandler,
                               FieldMapping fieldMap)
                        throws MappingException

Overrides:

getTypeInfo in class AbstractMappingLoader

Throws:

MappingException

createFieldDesc

protected FieldDescriptorImpl createFieldDesc(Class javaClass,
                                              FieldMapping fieldMap)
                                       throws MappingException

Overrides:

createFieldDesc in class AbstractMappingLoader

Throws:

MappingException