Package net.hydromatic.morel.util

Class Tracers

java.lang.Object

net.hydromatic.morel.util.Tracers

public class Tracers
extends Object

Implementations of Unifier.Tracer.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Tracers.ConfigurableTracer	Tracer that allows each of its methods to be modified using a handler.
private static class	Tracers.ConfigurableTracerImpl	Implementation of Tracers.ConfigurableTracer that has a field for each handler.
private static class	Tracers.NullTracer	Implementation of Unifier.Tracer that does nothing.
private static class	Tracers.PrintTracer	Implementation of Unifier.Tracer that writes to a given PrintWriter.
static interface	Tracers.QuadConsumer<T,U,V,W>	Consumer that accepts four arguments.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Tracers()

Method Summary

Modifier and Type	Method	Description
static Tracers.ConfigurableTracer	nullTracer()	Returns a tracer that does nothing.
static Tracers.ConfigurableTracer	printTracer(OutputStream stream)	Returns a tracer that writes debugging messages to a stream.
static Tracers.ConfigurableTracer	printTracer(PrintWriter w)	Returns a tracer that writes debugging messages to a writer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Tracers

private Tracers()

Method Details

nullTracer

public static Tracers.ConfigurableTracer nullTracer()

Returns a tracer that does nothing.

printTracer

public static Tracers.ConfigurableTracer printTracer(PrintWriter w)

Returns a tracer that writes debugging messages to a writer.

printTracer

public static Tracers.ConfigurableTracer printTracer(OutputStream stream)

Returns a tracer that writes debugging messages to a stream.