com.asakusafw.runtime.io

Interface ModelInput<T>

Type Parameters:

T - the data model type

All Superinterfaces:

AutoCloseable, Closeable

All Known Subinterfaces:

JsonInput<T>, TextInput<T>

All Known Implementing Classes:

BasicLineInput, FilteredModelInput, LineInput, OrcFileInput, ParquetFileInput, ParquetFileInput, SequenceFileModelInput, TemporaryFileInput, Utf8LineInput, VoidModelInput

public interface ModelInput<T>
extends Closeable

An abstract interface of reading data-sets.

Method Summary

Modifier and Type	Method and Description
boolean	readTo(T model) Reads contents and write them into the target data model object.

Methods inherited from interface java.io.Closeable

close

Method Detail

readTo

boolean readTo(T model)
        throws IOException

Reads contents and write them into the target data model object. The target data model object will be changed even if the next data does not exist.

Parameters:

model - the target data model object

Returns:

true if the next data was successfully read, or false if there is no any more

Throws:

IOException - if error occurred while reading the next data