how to call methods for Application log creation and save

Hi ,

i am trying to do create application Log by using classes methods,

i created a class in SE24 with three methods:

INIT_LOGGER Static Method

SAVE_LOGGER Instance Method

ADD_LOG_MESSAGE Instance Method

in these methods:

in INIT_LOGGER method i am using below FM'S:

'BAL_DB_SEARCH'

'BAL_DB_LOAD'

'BAL_LOG_CREATE'

In Method SAVE_LOGGER : using 'BAL_DB_SAVE'

In last method ADD_LOG_MESSAGE: using 'BAL_LOG_MSG_ADD'

but here my concern is , in program how to call these methods,

how to pass the data into these methods and which order...

i tried to find out in SDN for this, but could not find relevant....

please suggest me on this...

Sri