Class MetaDataMerger


  • public class MetaDataMerger
    extends Object
    Convenience class to handle the merging of MetaData. This is used in the following situations
    • JDO : Merging ORM MetaData into JDO MetaData
    • JPA : Merging Annotations information into JPA MetaData
    • JDO : Merging Annotations information into JDO MetaData
    • Constructor Detail

      • MetaDataMerger

        public MetaDataMerger()
    • Method Detail

      • mergeFileORMData

        public static void mergeFileORMData​(FileMetaData primaryFmd,
                                            FileMetaData ormFmd)
        Method to take a file JDO MetaData definition and merge in the ORM MetaData definition. If something is specified in the JDO MetaData and also in the ORM MetaData then the ORM MetaData takes precedence.
        Parameters:
        primaryFmd - The JDO Field definition (to be updated)
        ormFmd - The ORM Field definition (to be merged into the JDO Field definition)
        Throws:
        NucleusException - if an error occurs while merging the ORM info
      • mergeClassORMData

        public static void mergeClassORMData​(AbstractClassMetaData primaryCmd,
                                             AbstractClassMetaData ormCmd,
                                             MetaDataManager mmgr)
        Method to take a class JDO MetaData definition and merge in the ORM MetaData definition. If something is specified in the JDO MetaData and also in the ORM MetaData then the ORM MetaData takes precedence. This is tied pretty intrinsically to the AbstractClassMetaData class and so could have been included there.
        Parameters:
        primaryCmd - The JDO Class definition (to be updated)
        ormCmd - The ORM Class definition (to be merged into the JDO Class definition)
        mmgr - MetaData manager
        Throws:
        NucleusException - if an error occurs while merging the ORM info
      • mergeClassAnnotationsData

        public static void mergeClassAnnotationsData​(AbstractClassMetaData primaryCmd,
                                                     AbstractClassMetaData annotCmd,
                                                     MetaDataManager mmgr)
        Method to take a class XML metadata definition and merge in any Annotations metadata definition. If something is specified in the XML and also in the annotations then the XML takes precedence. This is tied pretty intrinsically to the AbstractClassMetaData class and so could have been included there.
        Parameters:
        primaryCmd - The XML metadata definition (to be updated)
        annotCmd - The annotations metadata definition (to be merged into the XML definition)
        mmgr - MetaData manager
        Throws:
        NucleusException - if an error occurs while merging the annotations info