How to make custom type handler available globally for specific datatype in mybatis

Question

I am using Mybatis 3.2.2. While inserting data dynamically in Oracle I am facing an issue with Timestamp datatype. So I have written custom type handler for TimeStamp. Now for any query whenever Timestamp datatype comes into picture I want to give the call to this custom typeHandler not default one.

But somehow my typeHandler is not visible globally to take up. Mybatis is calling default typeHandler.

I have written below annotation above custom typeHandler

@MappedJdbcTypes(JdbcType.VARCHAR)
@MappedType(value=Timestamp.class)

In mybatis configuration file

<typeHandlers>
  <typeHandler handler="com.corp.mapper.TimestampTypeHandler"/>
</typeHandlers>

Please let me know what I am missing.