Package com.mckoi.database.jdbcserver

Class DefaultLocalBootable

  • All Implemented Interfaces:
    LocalBootable
    public class DefaultLocalBootable
extends java.lang.Object
implements LocalBootable
    A bootable object that filters through to a JDBCDatabaseInterface but is thread-safe and multi-threaded. This is to be used when you have a local JDBC Client accessing a stand-alone database.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      private class  DefaultLocalBootable.LocalJDBCDatabaseInterface
      A local implementation of JDBCDatabaseInterface that will dispose the parent LocalBootable object when the last open connection is disposed.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private boolean active
      Set to true when this interface is active.
      private boolean booted
      Set to true if the database is booted.
      private int connect_id
      The connection id.
      private java.lang.Object connection_lock
      The connection lock object.
      private DBSystem dbsys
      The local DBSystem database object.
      private int open_connections
      The number of connections that are current open.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      DatabaseInterface boot​(DBConfig config)
      Boots the local database with the given configuration.
      boolean checkExists​(DBConfig config)
      Attempts to test if the database exists or not.
      DatabaseInterface connectToJVM()
      Creates a new LocalDatabaseInterface that is connected to the database currently running in this VM.
      DatabaseInterface create​(java.lang.String username, java.lang.String password, DBConfig config)
      Creates and boots a local database with the given configuration.
      boolean isBooted()
      Returns true if a database has successfully been booted in this JVM.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • booted

        private boolean booted
        Set to true if the database is booted.

      • active

        private boolean active
        Set to true when this interface is active.

      • dbsys

        private DBSystem dbsys
        The local DBSystem database object.

      • connect_id

        private int connect_id
        The connection id. This is incremented by 1 each time an interface connects to the local JVM.

      • open_connections

        private int open_connections
        The number of connections that are current open.

      • connection_lock

        private java.lang.Object connection_lock
        The connection lock object.

    • Constructor Detail

      • DefaultLocalBootable

        public DefaultLocalBootable()

    • Method Detail

      • create

        public DatabaseInterface create​(java.lang.String username,
                                java.lang.String password,
                                DBConfig config)
                         throws java.sql.SQLException
        Creates and boots a local database with the given configuration. This is implemented from LocalBootable.
        Specified by:
        create in interface LocalBootable
        Parameters:
        config - the configuration variables.
        Throws:
        java.sql.SQLException

      • boot

        public DatabaseInterface boot​(DBConfig config)
                       throws java.sql.SQLException
        Boots the local database with the given configuration. This is implemented from LocalBootable.
        Specified by:
        boot in interface LocalBootable
        Parameters:
        config - the configuration variables.
        Throws:
        java.sql.SQLException

      • checkExists

        public boolean checkExists​(DBConfig config)
                    throws java.sql.SQLException
        Attempts to test if the database exists or not. Returns true if the database exists.
        Specified by:
        checkExists in interface LocalBootable
        Parameters:
        config - the configuration variables.
        Throws:
        java.sql.SQLException

      • isBooted

        public boolean isBooted()
                 throws java.sql.SQLException
        Returns true if a database has successfully been booted in this JVM. If a database hasn't been botted then it returns false.
        Specified by:
        isBooted in interface LocalBootable
        Throws:
        java.sql.SQLException

      • connectToJVM

        public DatabaseInterface connectToJVM()
                               throws java.sql.SQLException
        Creates a new LocalDatabaseInterface that is connected to the database currently running in this VM. Calling this method must guarentee that either 'boot' or 'create' has been called in this VM beforehand.
        Specified by:
        connectToJVM in interface LocalBootable
        Throws:
        java.sql.SQLException