Module org.tentackle.sql
Package org.tentackle.sql

Class Db2

    • Constructor Detail

      • Db2

        public Db2()

    • Method Detail

      • isMatchingUrl

        public boolean isMatchingUrl​(java.lang.String url)
        Description copied from interface: Backend
        Checks whether the backend belongs to the given jdbc url.
        Parameters:
        url - the jdbc url
        Returns:
        true if matches

      • getName

        public java.lang.String getName()
        Description copied from interface: Backend
        Gets the name of the backend.
        Returns:
        the name

      • getDriverClassName

        public java.lang.String getDriverClassName()
        Description copied from interface: Backend
        Gets the JDBC driver class name.
        Returns:
        the class name

      • getMaxSize

        public int getMaxSize​(SqlType sqlType)
        Description copied from interface: Backend
        Returns the maximum size for a given SQL-type.
        Specified by:
        getMaxSize in interface Backend
        Overrides:
        getMaxSize in class AbstractBackend
        Parameters:
        sqlType - the SQL-type
        Returns:
        the maximum size, 0 if unlimited, -1 if type without size

      • getBackendId

        public java.lang.String getBackendId​(java.sql.Connection connection)
        Description copied from interface: Backend
        Determines the unique id or name used by the backend for a given connection.

        Useful to figure out the corresponding ManagedConnection from the backend's logfiles.

        Parameters:
        connection - the jdbc connection
        Returns:
        the backend id, null if none

      • sqlCreateTableIntro

        public java.lang.String sqlCreateTableIntro​(java.lang.String tableName,
                                            java.lang.String comment)
        Description copied from interface: Backend
        Generates the first line of a CREATE TABLE statement.
        Specified by:
        sqlCreateTableIntro in interface Backend
        Overrides:
        sqlCreateTableIntro in class AbstractBackend
        Parameters:
        tableName - the tablename with optional schema separated by a dot
        comment - optional comment, null if none
        Returns:
        the SQL code including the opening bracket

      • sqlTypeToString

        public java.lang.String sqlTypeToString​(SqlType sqlType,
                                        int size)
        Description copied from interface: Backend
        Converts the java SQL-type to the database type name.
        Specified by:
        sqlTypeToString in interface Backend
        Overrides:
        sqlTypeToString in class AbstractBackend
        Parameters:
        sqlType - the java sql type
        size - the column's size
        Returns:
        the corresponding type string

      • jdbcTypeToSqlType

        public SqlType[] jdbcTypeToSqlType​(int jdbcType,
                                   int size,
                                   int scale)
        Description copied from interface: Backend
        Converts the JDBC data type integer to a tentackle backend SqlTypes.

        There may be more than one sqltype returned!

        Specified by:
        jdbcTypeToSqlType in interface Backend
        Overrides:
        jdbcTypeToSqlType in class AbstractBackend
        Parameters:
        jdbcType - the jdbc data type
        size - the column size
        scale - the column's scale
        Returns:
        the SqlTypes, empty array if no mapping available or no exact match (not generated by TT)
        See Also:
        Types

      • sqlCreateColumn

        public java.lang.String sqlCreateColumn​(java.lang.String columnName,
                                        java.lang.String comment,
                                        SqlType sqlType,
                                        int size,
                                        int scale,
                                        boolean nullable,
                                        java.lang.Object defaultValue,
                                        boolean primaryKey,
                                        boolean withTrailingComma)
        Description copied from interface: Backend
        Generates the attribute definition of a CREATE TABLE statement.
        Specified by:
        sqlCreateColumn in interface Backend
        Overrides:
        sqlCreateColumn in class AbstractBackend
        Parameters:
        columnName - the database column name
        comment - optional comment, null if none
        sqlType - the JDBC sql type
        size - the optional size
        scale - the optional scale
        nullable - true if NULL, else NOT NULL
        defaultValue - the optional default value
        primaryKey - true if this is a primary key
        withTrailingComma - true if append a comma
        Returns:
        the SQL code

      • sqlAddColumn

        public java.lang.String sqlAddColumn​(java.lang.String tableName,
                                     java.lang.String columnName,
                                     java.lang.String comment,
                                     SqlType sqlType,
                                     int size,
                                     int scale,
                                     boolean nullable,
                                     java.lang.Object defaultValue)
        Description copied from interface: Backend
        Generates sql code to add a column.
        Specified by:
        sqlAddColumn in interface Backend
        Overrides:
        sqlAddColumn in class AbstractBackend
        Parameters:
        tableName - the tablename
        columnName - the new column name
        comment - optional comment, null if none
        sqlType - the JDBC sql type
        size - the optional size
        scale - the optional scale
        nullable - true if NULL, else NOT NULL
        defaultValue - the optional default value
        Returns:
        the SQL code

      • sqlAlterColumnType

        public java.lang.String sqlAlterColumnType​(java.lang.String tableName,
                                           java.lang.String columnName,
                                           java.lang.String comment,
                                           SqlType sqlType,
                                           int size,
                                           int scale,
                                           boolean nullable,
                                           java.lang.Object defaultValue)
        Description copied from interface: Backend
        Generates sql code to change the datatype of a column.
        Specified by:
        sqlAlterColumnType in interface Backend
        Overrides:
        sqlAlterColumnType in class AbstractBackend
        Parameters:
        tableName - the tablename
        columnName - the new column name
        comment - optional comment, null if none
        sqlType - the JDBC sql type
        size - the optional size
        scale - the optional scale
        nullable - true if NULL, else NOT NULL
        defaultValue - the optional default value
        Returns:
        the SQL code