org.apache.commons.io.function

Interface IOSupplier<T>

Type Parameters:

T - the return type of the operations.

All Known Implementing Classes:

AbstractOrigin, AbstractOrigin.AbstractRandomAccessFileOrigin, AbstractOrigin.ByteArrayOrigin, AbstractOrigin.CharSequenceOrigin, AbstractOrigin.FileOrigin, AbstractOrigin.InputStreamOrigin, AbstractOrigin.IORandomAccessFileOrigin, AbstractOrigin.OutputStreamOrigin, AbstractOrigin.PathOrigin, AbstractOrigin.RandomAccessFileOrigin, AbstractOrigin.ReaderOrigin, AbstractOrigin.URIOrigin, AbstractOrigin.WriterOrigin, AbstractOriginSupplier, AbstractStreamBuilder, AbstractSupplier, AccumulatorPathVisitor.Builder, AutoCloseInputStream.Builder, BOMInputStream.Builder, BoundedInputStream.AbstractBuilder, BoundedInputStream.Builder, BufferedFileChannelInputStream.Builder, CharSequenceInputStream.Builder, ChecksumInputStream.Builder, ChunkedOutputStream.Builder, CountingPathVisitor.AbstractBuilder, CountingPathVisitor.Builder, DeferredFileOutputStream.Builder, FileAlterationObserver.Builder, FileWriterWithEncoding.Builder, LockableFileWriter.Builder, MemoryMappedFileInputStream.Builder, MessageDigestCalculatingInputStream.Builder, MessageDigestInputStream.Builder, ObservableInputStream.AbstractBuilder, ObservableInputStream.Builder, ProxyInputStream.AbstractBuilder, ProxyOutputStream.Builder, QueueInputStream.Builder, RandomAccessFileInputStream.Builder, RandomAccessFileOutputStream.Builder, ReadAheadInputStream.Builder, ReaderInputStream.Builder, ReversedLinesFileReader.Builder, SimplePathVisitor.AbstractBuilder, Tailer.Builder, ThrottledInputStream.Builder, UncheckedBufferedReader.Builder, UncheckedFilterInputStream.Builder, UncheckedFilterOutputStream.Builder, UncheckedFilterReader.Builder, UncheckedFilterWriter.Builder, UnsynchronizedBufferedInputStream.Builder, UnsynchronizedByteArrayInputStream.Builder, UnsynchronizedByteArrayOutputStream.Builder, UnsynchronizedFilterInputStream.Builder, ValidatingObjectInputStream.Builder, WildcardFileFilter.Builder, WriterOutputStream.Builder, XmlStreamReader.Builder, XmlStreamWriter.Builder

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface IOSupplier<T>

Like Supplier but throws IOException.

Using an IOSupplier allows you to compose usage of checked and unchecked exceptions as you best see fit.

Method Summary

Modifier and Type	Method and Description
default java.util.function.Supplier<T>	asSupplier() Creates a Supplier for this instance that throws UncheckedIOException instead of IOException.
T	get() Gets a result.
default T	getUnchecked() Gets a result.

Method Detail

asSupplier

default java.util.function.Supplier<T> asSupplier()

Creates a Supplier for this instance that throws UncheckedIOException instead of IOException.

Returns:

an UncheckedIOException Supplier.

get

T get()
throws IOException

Gets a result.

Returns:

a result.

Throws:

IOException - if an I/O error occurs.

See Also:

getUnchecked()

getUnchecked

default T getUnchecked()
                throws UncheckedIOException

Gets a result.

Returns:

a result.

Throws:

UncheckedIOException - if an I/O error occurs.

See Also:

get()