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7.3. SQL Translation Extension


The JDBCExcecutionFactory provides several methods to modify the command and the string form of the resulting syntax before it is sent to the JDBC driver, including:
  • Change basic SQL syntax options. See the useXXX methods, e.g. useSelectLimit returns true for SQLServer to indicate that limits are applied in the SELECT clause.
  • Register one or more FunctionModifiers that define how a scalar function is to be modified or transformed.
  • Modify a LanguageObject (see the translate, translateXXX, and FunctionModifiers.translate methods). Modify the passed in object and return null to indicate that the standard syntax output will be used.
  • Change the way SQL strings are formed for a LanguageObject (see the translate, translateXXX, and FunctionModifiers.translate methods). Return a list of parts, which can contain strings and LanguageObjects, that will be appended in order to the SQL string. If the in coming LanguageObject appears in the returned list it will not be translated again.
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