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java.lang.Objectorg.jpox.metadata.MetaDataUtils
Utilities needed for the processing of MetaData.
Field Summary | |
protected static Localiser |
LOCALISER
|
Constructor Summary | |
protected |
MetaDataUtils()
Protected constructor to prevent outside instantiation |
Method Summary | |
java.lang.String[] |
getImplementationNamesForReferenceField(AbstractPropertyMetaData fmd,
DatastoreFieldRole role,
ClassLoaderResolver clr)
Convenience method to return the class names of the available implementation types for an interface/Object field, given its required role. |
static MetaDataUtils |
getInstance()
Gets an instance of MetaDataUtils |
java.util.List |
getOrderedClassNamesFromFileList(java.net.URL[] metaDataFileURLs,
java.util.Map classToMetaDataMap)
Utility to return a list of classes declared in provided metadata files. |
java.lang.String[] |
getValuesForCommaSeparatedAttribute(java.lang.String attr)
Convenience method that splits a comma-separated list of values into a String array (removing whitespace). |
boolean |
isValidPrimaryKeyClass(java.lang.Class pkClass,
AbstractClassMetaData cmd,
ClassLoaderResolver clr,
int noOfPkFields)
Utility to check if a primary-key class is valid. |
boolean |
storesFCO(AbstractPropertyMetaData fmd,
ClassLoaderResolver clr)
Convenience method that returns if a field stores a First-Class object (FCO). |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
protected static final Localiser LOCALISER
Constructor Detail |
protected MetaDataUtils()
Method Detail |
public static MetaDataUtils getInstance()
public java.util.List getOrderedClassNamesFromFileList(java.net.URL[] metaDataFileURLs, java.util.Map classToMetaDataMap) throws java.lang.Exception
metaDataFileURLs
- The list of JDO metadata file names.classToMetaDataMap
- A Map that will be populated mapping class
name to the MetaData file name. This argument can be null.
java.lang.Exception
public boolean isValidPrimaryKeyClass(java.lang.Class pkClass, AbstractClassMetaData cmd, ClassLoaderResolver clr, int noOfPkFields)
pkClass
- The Primary Key classcmd
- AbstractClassMetaData for the PersistenceCapable classclr
- the ClassLoaderResolvernoOfPkFields
- Number of primary key fields
public boolean storesFCO(AbstractPropertyMetaData fmd, ClassLoaderResolver clr)
fmd
- MetaData for the fieldclr
- ClassLoaderResolver resolver
public java.lang.String[] getValuesForCommaSeparatedAttribute(java.lang.String attr)
attr
- The attribute value
public java.lang.String[] getImplementationNamesForReferenceField(AbstractPropertyMetaData fmd, DatastoreFieldRole role, ClassLoaderResolver clr)
fmd
- MetaData for the fieldrole
- The role of the fieldclr
- the ClassLoaderResolver
javax.jdo.JDOUserException
- if no implementation types are found for the reference type field
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