com.aol.cyclops.trycatch

Interface Try.Init<X extends java.lang.Throwable>

All Known Implementing Classes:

Try.MyInit

Enclosing interface:

Try<T,X extends java.lang.Throwable>

public static interface Try.Init<X extends java.lang.Throwable>

Method Summary

Modifier and Type	Method and Description
<V> Try.TryCatch<V,X>	init(Try.CheckedSupplier<V,X> input) Initialise a try / catch / finally block Define the variables to be used within the block.
Try<java.lang.Void,X>	run(Try.CheckedRunnable<X> input) Run the supplied CheckedRunnable and trap any Exceptions Return type is Void
<V> Try<V,X>	tryThis(Try.CheckedSupplier<V,X> input) Run the supplied CheckedSupplier and trap the return value or an Exception inside a Try

Method Detail

init

<V> Try.TryCatch<V,X> init(Try.CheckedSupplier<V,X> input)

Initialise a try / catch / finally block Define the variables to be used within the block. A Tuple or Iterable can be returned to defined multiple values. Closeables (either individually or within an iterable) will be closed via tryWithResources.

 
 Try.catchExceptions(FileNotFoundException.class,IOException.class)
                   .init(()->new BufferedReader(new FileReader("file.txt")))
                   .tryWithResources(this::read);
 
 

or

 
 Try t2 = Try.catchExceptions(FileNotFoundException.class,IOException.class)
                   .init(()->Tuple.tuple(new BufferedReader(new FileReader("file.txt")),new FileReader("hello")))
                   .tryWithResources(this::read2);
 
 private String read2(Tuple2<BufferedReader,FileReader> res) throws IOException{
 String line = res.v1.readLine();
 
 

Parameters:

input - Supplier that provides input values to be used in the Try / Catch

Returns:

run

Try<java.lang.Void,X> run(Try.CheckedRunnable<X> input)

Run the supplied CheckedRunnable and trap any Exceptions Return type is Void

Parameters:

input - CheckedRunnable

Returns:

Try that traps any errors (no return type)

tryThis

<V> Try<V,X> tryThis(Try.CheckedSupplier<V,X> input)

Run the supplied CheckedSupplier and trap the return value or an Exception inside a Try

Parameters:

input - CheckedSupplier to run

Returns:

new Try