Class IndexInfoImpl

java.lang.Object
org.apache.derby.impl.sql.catalog.IndexInfoImpl
class IndexInfoImpl extends Object
A poor mans structure used in DataDictionaryImpl.java. Used to save information about system indexes.

  • Field Details

    • irg

      private IndexRowGenerator irg

    • conglomerateNumber

      private long conglomerateNumber

    • crf

      private final CatalogRowFactory crf

    • indexNumber

      private final int indexNumber

  • Constructor Details

    • IndexInfoImpl

      IndexInfoImpl(int indexNumber, CatalogRowFactory crf)
      Constructor
      Parameters:
      indexNumber - (0-based) number of index within catalog's indexes
      crf - CatalogRowFactory for the catalog

  • Method Details

    • getConglomerateNumber

      long getConglomerateNumber()
      Get the conglomerate number for the index.
      Returns:
      long The conglomerate number for the index.

    • setConglomerateNumber

      void setConglomerateNumber(long conglomerateNumber)
      Set the conglomerate number for the index.
      Parameters:
      conglomerateNumber - The conglomerateNumber for the index.

    • getIndexName

      String getIndexName()
      Get the index name for the index.
      Returns:
      String The index name for the index.

    • getColumnCount

      int getColumnCount()
      Get the column count for the index.
      Returns:
      int The column count for the index.

    • getIndexRowGenerator

      IndexRowGenerator getIndexRowGenerator()
      Get the IndexRowGenerator for this index.
      Returns:
      IndexRowGenerator The IRG for this index.

    • setIndexRowGenerator

      void setIndexRowGenerator(IndexRowGenerator irg)
      Set the IndexRowGenerator for this index.
      Parameters:
      irg - The IndexRowGenerator for this index.

    • getBaseColumnPosition

      int getBaseColumnPosition(int colNumber)
      Get the base column position for a column within a catalog given the (0-based) column number for the column within the index.
      Parameters:
      colNumber - The column number within the index
      Returns:
      int The base column position for the column.

    • isIndexUnique

      boolean isIndexUnique()
      Return whether or not this index is declared unique
      Returns:
      boolean Whether or not this index is declared unique