Examples of javax.sql.rowset.serial.SQLInputImpl.readString()

javax.sql.rowset.serial.SQLInputImpl.readString()

Retrieves the next attribute in this SQLInputImpl object as a String in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

@return the next attribute in this SQLInputImpl object;if the value is SQL NULL, return null @throws SQLException if the read position is located at an invalidposition or if there are no further values in the stream.

        SQLInputImpl impl = new SQLInputImpl(attributes,
                new HashMap<String, Class<?>>());
        assertFalse(impl.wasNull());
        assertEquals(null, impl.readString());
        assertTrue(impl.wasNull());
        assertEquals("hello", impl.readString());
        assertFalse(impl.wasNull());
        try {
            impl.readString();
            fail("should throw SQLException");
        } catch (SQLException e) {

        assertEquals(null, impl.readString());
        assertTrue(impl.wasNull());
        assertEquals("hello", impl.readString());
        assertFalse(impl.wasNull());
        try {
            impl.readString();
            fail("should throw SQLException");
        } catch (SQLException e) {
            // expected
        }
        assertFalse(impl.wasNull());

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