What does the TextInputFormat do?

Question

What is the function of the TextInputFormat?

Answer 1

In TextInputFormat, a new line object is created which is an hexadecimal number. The entirety of the line is considered to be the value which corresponds to the key value i.e the line object. In Hadoop, the value is interpreted as a 'text' parameter and the corresponding key is interpreted as 'longwriteable' type parameter.