Package com.mckoi.database

Class AbstractInternalTableInfo2

  • All Implemented Interfaces:
    InternalTableInfo
    Direct Known Subclasses:
    ConnectionTriggerManager.TriggerInternalTableInfo, ProcedureManager.ProcedureInternalTableInfo, ViewManager.ViewInternalTableInfo
    abstract class AbstractInternalTableInfo2
extends java.lang.Object
implements InternalTableInfo
    An implementation of InternalTableInfo that provides a number of methods to aid in the productions of the InternalTableInfo interface for a transaction specific model of a set of tables that is based on a single system table. This would be used to model table views for triggers, views, procedures and sequences all of which are table sets tied to a single table respectively, and the number of items in the table represent the number of tables to model.

    This abstraction assumes that the name of the schema/table are in columns 0 and 1 of the backed system table.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected TableName table_name
      The table in the transaction that contains the list of items we are modelling.
      protected Transaction transaction
      The transaction we are connected to.

    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      boolean containsTableName​(TableName name)
      Returns true if this container contains a table with the given name.
      abstract MutableTableDataSource createInternalTable​(int index)
      This is the factory method for generating the internal table for the given table in this container.
      int findTableName​(TableName name)
      Finds the index in this container of the given table name, otherwise returns -1.
      abstract DataTableDef getDataTableDef​(int i)
      Returns the DataTableDef object that describes the table at the given index in this container.
      int getTableCount()
      Returns the number of internal table sources that this object is maintaining.
      TableName getTableName​(int i)
      Returns the name of the table at the given index in this container.
      abstract java.lang.String getTableType​(int i)
      Returns a String that describes the type of the table at the given index.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • transaction

        protected final Transaction transaction
        The transaction we are connected to.

      • table_name

        protected final TableName table_name
        The table in the transaction that contains the list of items we are modelling.

    • Constructor Detail

      • AbstractInternalTableInfo2

        public AbstractInternalTableInfo2​(Transaction transaction,
                                  TableName table_name)
        Constructor.

    • Method Detail

      • getTableCount

        public int getTableCount()
        Description copied from interface: InternalTableInfo
        Returns the number of internal table sources that this object is maintaining.
        Specified by:
        getTableCount in interface InternalTableInfo

      • getTableType

        public abstract java.lang.String getTableType​(int i)
        Description copied from interface: InternalTableInfo
        Returns a String that describes the type of the table at the given index.
        Specified by:
        getTableType in interface InternalTableInfo

      • createInternalTable

        public abstract MutableTableDataSource createInternalTable​(int index)
        Description copied from interface: InternalTableInfo
        This is the factory method for generating the internal table for the given table in this container. This should return an implementation of MutableTableDataSource that is used to represent the internal data being modelled.

        This method is allowed to throw an exception for table objects that aren't backed by a MutableTableDataSource, such as a view.

        Specified by:
        createInternalTable in interface InternalTableInfo