public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
    switch (field) {
    case SESSION_HANDLE:
      if (value == null) {
        unsetSessionHandle();
      } else {
        setSessionHandle((TSessionHandle)value);
      }
      break;

    case CATALOG_NAME:
      if (value == null) {
        unsetCatalogName();
      } else {
        setCatalogName((java.lang.String)value);
      }
      break;

    case SCHEMA_NAME:
      if (value == null) {
        unsetSchemaName();
      } else {
        setSchemaName((java.lang.String)value);
      }
      break;

    }
  }
Returns true if field schemaName is set (has been assigned a value) and false otherwise
service-rpc/src/gen/thrift/gen-javabean/org/apache/hive/service/rpc/thrift/TGetSchemasReq.java