+ public boolean isValidNullValue(String judgedValue) {\r
+ int intValue;\r
+ BigInteger bigIntValue;\r
+\r
+ switch (datumType) {\r
+ case UINT8:\r
+ case UINT16:\r
+ case UINT32:\r
+ intValue = Integer.decode(judgedValue);\r
+ if (intValue == 0) {\r
+ return true;\r
+ }\r
+ break;\r
+ case UINT64:\r
+ if (judgedValue.length() > 2){\r
+ if ((judgedValue.charAt(0) == '0') && \r
+ ((judgedValue.charAt(1) == 'x') ||\r
+ (judgedValue.charAt(1) == 'X'))) {\r
+ bigIntValue = new BigInteger(judgedValue.substring(2, judgedValue.length()), 16);\r
+ if (bigIntValue.bitCount() == 0) {\r
+ return true;\r
+ }\r