polyglot.util
Class AbstractErrorQueue

java.lang.Object
  polyglot.util.AbstractErrorQueue

All Implemented Interfaces:

ErrorQueue

Direct Known Subclasses:

SilentErrorQueue, StdErrorQueue

public abstract class AbstractErrorQueue
extends java.lang.Object
implements ErrorQueue

A StdErrorQueue handles outputing error messages.

Field Summary

protected int	errorCount
protected boolean	flushed
protected int	limit
protected java.lang.String	name

Constructor Summary

AbstractErrorQueue(int limit, java.lang.String name)

Method Summary

protected abstract void	displayError(ErrorInfo error)
void	enqueue(ErrorInfo e)
void	enqueue(int type, java.lang.String message)
void	enqueue(int type, java.lang.String message, Position position)
int	errorCount()
void	flush() This method is called to flush the error queue.
boolean	hasErrors()
protected void	tooManyErrors(ErrorInfo lastError) This method is called when we have had too many errors.

Methods inherited from class java.lang.Object

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

Field Detail

flushed

protected boolean flushed

errorCount

protected int errorCount

limit

protected final int limit

name

protected final java.lang.String name

Constructor Detail

AbstractErrorQueue

public AbstractErrorQueue(int limit,
                          java.lang.String name)

Method Detail

enqueue

public final void enqueue(int type,
                          java.lang.String message)

Specified by:

enqueue in interface ErrorQueue

enqueue

public final void enqueue(int type,
                          java.lang.String message,
                          Position position)

Specified by:

enqueue in interface ErrorQueue

enqueue

public final void enqueue(ErrorInfo e)

Specified by:

enqueue in interface ErrorQueue

displayError

protected abstract void displayError(ErrorInfo error)

tooManyErrors

protected void tooManyErrors(ErrorInfo lastError)

This method is called when we have had too many errors. This method give subclasses the opportunity to output appropriate messages, or tidy up.

Parameters:

lastError - the last error that pushed us over the limit

flush

public void flush()

This method is called to flush the error queue. Subclasses may want to print summary information in this method.

Specified by:

flush in interface ErrorQueue

hasErrors

public final boolean hasErrors()

Specified by:

hasErrors in interface ErrorQueue

errorCount

public final int errorCount()

Specified by:

errorCount in interface ErrorQueue