public class DerbyBuilder extends CloudscapeBuilder
The SQL Builder for Derby.
Version:
$Revision: 279413 $
  • Constructor Details

    • DerbyBuilder

      public DerbyBuilder(Platform platform)
      Creates a new builder instance.
      Parameters:
      platform - The plaftform this builder belongs to
  • Method Details

    • getNativeDefaultValue

      protected String getNativeDefaultValue(Column column)
      Returns the native default value for the column.
      Overrides:
      getNativeDefaultValue in class SqlBuilder
      Parameters:
      column - The column
      Returns:
      The native default value
    • writeColumnAutoIncrementStmt

      protected void writeColumnAutoIncrementStmt(Table table, Column column) throws IOException
      Prints that the column is an auto increment column.
      Overrides:
      writeColumnAutoIncrementStmt in class CloudscapeBuilder
      Parameters:
      table - The table
      column - The column
      Throws:
      IOException
    • writeExternalIndexDropStmt

      public void writeExternalIndexDropStmt(Table table, Index index) throws IOException
      Generates the statement to drop a non-embedded index from the database.
      Overrides:
      writeExternalIndexDropStmt in class SqlBuilder
      Parameters:
      table - The table the index is on
      index - The index to drop
      Throws:
      IOException
    • writeCastExpression

      protected void writeCastExpression(Column sourceColumn, Column targetColumn) throws IOException
      Writes a cast expression that converts the value of the source column to the data type of the target column. Per default, simply the name of the source column is written thereby assuming that any casts happen implicitly.
      Overrides:
      writeCastExpression in class SqlBuilder
      Parameters:
      sourceColumn - The source column
      targetColumn - The target column
      Throws:
      IOException
    • processTableStructureChanges

      protected void processTableStructureChanges(Database currentModel, Database desiredModel, Table sourceTable, Table targetTable, Map parameters, List changes) throws IOException
      Allows database-specific implementations to handle changes in a database specific manner. Any handled change should be applied to the given current model (which is a copy of the real original model) and be removed from the list of changes.
      In the default implementation, all AddPrimaryKeyChange changes are applied via an ALTER TABLE ADD CONSTRAINT statement.
      Overrides:
      processTableStructureChanges in class SqlBuilder
      Parameters:
      currentModel - The current database schema
      desiredModel - The desired database schema
      sourceTable - The original table
      targetTable - The desired table
      parameters - The creation parameters for the table
      changes - The change objects for the target table
      Throws:
      IOException
    • processChange

      protected void processChange(Database currentModel, Database desiredModel, AddColumnChange change) throws IOException
      Processes the addition of a column to a table.
      Parameters:
      currentModel - The current database schema
      desiredModel - The desired database schema
      change - The change object
      Throws:
      IOException