Module org.jooq
Package org.jooq

Interface Case


  • public interface Case
    The SQL case statement.

    This construct can be used to create expressions of the type

     CASE x WHEN 1 THEN 'one'
            WHEN 2 THEN 'two'
            ELSE        'three'
     END
     
    or of the type
     CASE WHEN x < 1  THEN 'one'
          WHEN x >= 2 THEN 'two'
          ELSE            'three'
     END
     
    Instances of Case are created through the DSL.decode() method
    Author:
    Lukas Eder
    • Method Detail

      • value

        @Support
        <V> CaseValueStep<V> value​(V value)
        This construct can be used to create expressions of the type
         CASE value WHEN 1 THEN 'one'
                    WHEN 2 THEN 'two'
                    ELSE        'three'
         END
         
        Type Parameters:
        V - The generic value type parameter
        Parameters:
        value - The value to do the case statement on
        Returns:
        An intermediary step for case statement construction
      • value

        @Support
        <V> CaseValueStep<V> value​(Field<V> value)
        This construct can be used to create expressions of the type
         CASE value WHEN 1 THEN 'one'
                    WHEN 2 THEN 'two'
                    ELSE        'three'
         END
         
        Type Parameters:
        V - The generic value type parameter
        Parameters:
        value - The value to do the case statement on
        Returns:
        An intermediary step for case statement construction
      • when

        @Support
        <T> CaseConditionStep<T> when​(Condition condition,
                                      T result)
        This construct can be used to create expressions of the type
         CASE WHEN x < 1  THEN 'one'
              WHEN x >= 2 THEN 'two'
              ELSE            'three'
         END
         
        Type Parameters:
        T - The generic field type parameter
        Parameters:
        condition - A condition to check in the case statement
        result - The result if the condition holds true
        Returns:
        An intermediary step for case statement construction
      • when

        @Support
        <T> CaseConditionStep<T> when​(Condition condition,
                                      Field<T> result)
        This construct can be used to create expressions of the type
         CASE WHEN x < 1  THEN 'one'
              WHEN x >= 2 THEN 'two'
              ELSE            'three'
         END
         
        Type Parameters:
        T - The generic field type parameter
        Parameters:
        condition - A condition to check in the case statement
        result - The result if the condition holds true
        Returns:
        An intermediary step for case statement construction
      • when

        @Support
        <T> CaseConditionStep<T> when​(Condition condition,
                                      Select<? extends Record1<T>> result)
        This construct can be used to create expressions of the type
         CASE WHEN x < 1  THEN 'one'
              WHEN x >= 2 THEN 'two'
              ELSE            'three'
         END
         
        Type Parameters:
        T - The generic field type parameter
        Parameters:
        condition - A condition to check in the case statement
        result - The result if the condition holds true
        Returns:
        An intermediary step for case statement construction