tWaitForSqlData example

You can use row count as a trigger by using this component.

set the configuration as in above image.

And use the below code to access values-

System.out.println("CURRENT_ITERATION");

System.out.println(
((Integer)globalMap.get("tWaitForSqlData_1_CURRENT_ITERATION"))
);

System.out.println("ROW_COUNT");

System.out.println(
((Integer)globalMap.get("tWaitForSqlData_1_ROW_COUNT"))
);