NestedThrowable (JBoss/Common API) - JBoss 3.2.7 common API Documentation 英文版文档

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org.jboss.util
Interface NestedThrowable

All Superinterfaces:: Serializable

All Known Implementing Classes:: AbstractNestedThrowable, NestedError, NestedException, NestedRuntimeException, NestedSQLException

public interface NestedThrowable
extends Serializable

Interface which is implemented by all the nested throwable flavors.

Version:: $Revision: 1.6 $
Author:: Jason Dillon

Nested Class Summary

static class NestedThrowable.Util
          Utilitiy methods for the various flavors of NestedThrowable.

Field Summary

static boolean DETECT_DUPLICATE_NESTING
          A system wide flag to enable or disable checking of parent and child types to detect uneeded nesting

static boolean NESTED_TRACE_ENABLED
          A system wide flag to enable or disable printing of the nested detail throwable traces.

static boolean PARENT_TRACE_ENABLED
          A system wide flag to enable or disable printing of the parent throwable traces.

Method Summary

Throwable getCause()
          Return the nested Throwable.

Throwable getNested()
          Return the nested throwable.

Field Detail

PARENT_TRACE_ENABLED

public static final boolean PARENT_TRACE_ENABLED

A system wide flag to enable or disable printing of the parent throwable traces.

This value is set from the system property org.jboss.util.NestedThrowable.parentTraceEnabled or if that is not set defaults to true.

NESTED_TRACE_ENABLED

public static final boolean NESTED_TRACE_ENABLED

A system wide flag to enable or disable printing of the nested detail throwable traces.

This value is set from the system property org.jboss.util.NestedThrowable.nestedTraceEnabled or if that is not set defaults to true unless using JDK 1.4 with PARENT_TRACE_ENABLED set to false, then false since there is a native mechansim for this there.

Note then when running under 1.4 is is not possible to disable the nested trace output, since that is handled by java.lang.Throwable which we delegate the parent printing to.

DETECT_DUPLICATE_NESTING

public static final boolean DETECT_DUPLICATE_NESTING

A system wide flag to enable or disable checking of parent and child types to detect uneeded nesting

This value is set from the system property org.jboss.util.NestedThrowable.detectDuplicateNesting or if that is not set defaults to true.

Method Detail

getNested

public Throwable getNested()

Return the nested throwable.

Returns:: Nested throwable.

getCause

public Throwable getCause()

Return the nested Throwable.

For JDK 1.4 compatibility.

Returns:: Nested Throwable.