Class GenericConglomerate

    • Constructor Detail

      • GenericConglomerate

        public GenericConglomerate()
    • Method Detail

      • getLength

        public int getLength()
                      throws StandardException
        Gets the length of the data value. The meaning of this is implementation-dependent. For string types, it is the number of characters in the string. For numeric types, it is the number of bytes used to store the number. This is the actual length of this value, not the length of the type it was defined as. For example, a VARCHAR value may be shorter than the declared VARCHAR (maximum) length.
        Specified by:
        getLength in interface DataValueDescriptor
        Returns:
        The length of the data value
        Throws:
        StandardException - On error
        See Also:
        DataValueDescriptor.getLength()
      • getObject

        public java.lang.Object getObject()
                                   throws StandardException
        Gets the value in the data value descriptor as a Java Object. The type of the Object will be the Java object type corresponding to the data value's SQL type. JDBC defines a mapping between Java object types and SQL types - we will allow that to be extended through user type definitions. Throws an exception if the data value is not an object (yeah, right).
        Specified by:
        getObject in interface DataValueDescriptor
        Overrides:
        getObject in class DataType
        Returns:
        The data value as an Object.
        Throws:
        StandardException - Thrown on error
        See Also:
        DataValueDescriptor.getObject()
      • cloneValue

        public DataValueDescriptor cloneValue​(boolean forceMaterialization)
        Description copied from interface: DataValueDescriptor
        Clone this DataValueDescriptor. Results in a new object that has the same value as this but can be modified independently.

        Even though the objects can be modified independently regardless of the value of forceMaterialization, both the clone and the original may be dependent on the store state if forceMaterialization is set to false. An example is if you need to access the value you just read using cloneValue after the current transaction has ended, or after the source result set has been closed.

        Specified by:
        cloneValue in interface DataValueDescriptor
        Parameters:
        forceMaterialization - any streams representing the data value will be materialized if true, the data value will be kept as a stream if possible if false
        Returns:
        A clone of the DataValueDescriptor with the same initial value as this.
        See Also:
        DataValueDescriptor.cloneValue(boolean)
      • hasCollatedColumns

        public static boolean hasCollatedColumns​(int[] collationIds)
        Tells if there are columns with collations (other than UCS BASIC) in the given list of collation ids.
        Parameters:
        collationIds - collation ids for the conglomerate columns
        Returns:
        true if a collation other than UCS BASIC was found.