com.sun.jdo.api.persistence.mapping.ejb

Class SunCmpMappingsUtils

java.lang.Object

com.sun.jdo.api.persistence.mapping.ejb.SunCmpMappingsUtils

public class SunCmpMappingsUtils
extends Object

Finder utilities for elements of the SunCmpMappings object graph.

Author:

vkraemer

Method Summary

Modifier and Type	Method and Description
static CmpFieldMapping	findCmpFieldMapping(EntityMapping em, String fname, boolean addEmpty) Find the CmpFieldMapping element with a matching field-name element value
static CmrFieldMapping	findCmrFieldMapping(EntityMapping em, String fname, boolean addEmpty) Find the cmr-field-mapping element for a field in an EntityMapping object
protected static List	findCompatibleBeansWithValue(org.netbeans.modules.schema2beans.BaseBean root, String propName, String propVal, Class type) A utility for finding beans in a graph of BaseBean objects.
static EntityMapping	findEntityMapping(SunCmpMappings scms, String bname, boolean addEmpty) Find the EntityMapping element that correspond to a bean.
static SunCmpMapping	getFirstSunCmpMapping(SunCmpMappings scms, boolean addEmpty) Return the first SunCmpMapping element from the graph.

Methods inherited from class java.lang.Object

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

Method Detail

getFirstSunCmpMapping

public static SunCmpMapping getFirstSunCmpMapping(SunCmpMappings scms,
                                                  boolean addEmpty)

Return the first SunCmpMapping element from the graph.

Parameters:

scms - The root of a SunCmpMappings object graph

addEmpty - flag to add an empty version of the SunCmpMapping element to the graph if one is not found.

Returns:

The first SunCmpMapping element in the graph or null if it doesn't exists and addEmpty is false.

findEntityMapping

public static EntityMapping findEntityMapping(SunCmpMappings scms,
                                              String bname,
                                              boolean addEmpty)
                                       throws IllegalArgumentException

Find the EntityMapping element that correspond to a bean.

Parameters:

scms - the root of the SunCmpMappings graph

bname - The value of the ejb-name element for a bean in the graph

addEmpty - flag to add an empty version of the EntityMapping element to the graph if one is not found.

Returns:

the EntityMapping element, or null if addEmpty is false and the EntityMapping is not found.

Throws:

IllegalArgumentException - if more than one EntityMapping element has an ejb-name element with the matching value

findCmrFieldMapping

public static CmrFieldMapping findCmrFieldMapping(EntityMapping em,
                                                  String fname,
                                                  boolean addEmpty)
                                           throws IllegalArgumentException

Find the cmr-field-mapping element for a field in an EntityMapping object

Parameters:

em - The root of the search

fname - the name of the field

addEmpty - flag to add an empty version of the CmrFieldMapping element to the graph if one is not found.

Returns:

the CmrFieldMapping element or null if addEmpty is false and the field is not found.

Throws:

IllegalArgumentException - If there is more than one cmr-field with a matching cmr-field-name element in the EntityMapping graph.

findCmpFieldMapping

public static CmpFieldMapping findCmpFieldMapping(EntityMapping em,
                                                  String fname,
                                                  boolean addEmpty)
                                           throws IllegalArgumentException

Find the CmpFieldMapping element with a matching field-name element value

Parameters:

em - the root of the search

fname - the value of the field-name element

addEmpty - flag to add an empty version of the CmpFieldMapping element to the graph if one is not found.

Returns:

The CmpFieldMapping element or null if addEmpty is false and the field is not found.

Throws:

IllegalArgumentException - If there is more than one cmp-field with a matching field-name element in the EntityMapping graph.

findCompatibleBeansWithValue

protected static List findCompatibleBeansWithValue(org.netbeans.modules.schema2beans.BaseBean root,
                                                   String propName,
                                                   String propVal,
                                                   Class type)
                                            throws IllegalArgumentException

A utility for finding beans in a graph of BaseBean objects. Search the bean graph, starting at a given root, for beans where the named property has the given value. The returned list is filtered by assignment compatibility.

Parameters:

root - The root of a search

propName - The name of the element

propVal - the value of the element

type - The expected type of the value to be returned.

Returns:

The assignment compatible BaseBeans that were found.

Throws:

IllegalArgumentException - If the bean is not part of a complete bean graph.