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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/xml/pipeline/EventConsumer.java | |
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Diffstat (limited to 'libjava/classpath/gnu/xml/pipeline/EventConsumer.java')
-rw-r--r-- | libjava/classpath/gnu/xml/pipeline/EventConsumer.java | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/xml/pipeline/EventConsumer.java b/libjava/classpath/gnu/xml/pipeline/EventConsumer.java new file mode 100644 index 000000000..a0a8824f7 --- /dev/null +++ b/libjava/classpath/gnu/xml/pipeline/EventConsumer.java @@ -0,0 +1,95 @@ +/* EventConsumer.java -- + Copyright (C) 1999,2000,2001 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package gnu.xml.pipeline; + +import org.xml.sax.*; + + +/** + * Collects the event consumption apparatus of a SAX pipeline stage. + * Consumers which permit some handlers or other characteristics to be + * configured will provide methods to support that configuration. + * + * <p> Two important categories of consumers include <em>filters</em>, which + * process events and pass them on to other consumers, and <em>terminus</em> + * (or <em>terminal</em>) stages, which don't pass events on. Filters are not + * necessarily derived from the {@link EventFilter} class, although that + * class can substantially simplify their construction by automating the + * most common activities. + * + * <p> Event consumers which follow certain conventions for the signatures + * of their constructors can be automatically assembled into pipelines + * by the {@link PipelineFactory} class. + * + * @author David Brownell + */ +public interface EventConsumer +{ + /** Most stages process these core SAX callbacks. */ + public ContentHandler getContentHandler (); + + /** Few stages will use unparsed entities. */ + public DTDHandler getDTDHandler (); + + /** + * This method works like the SAX2 XMLReader method of the same name, + * and is used to retrieve the optional lexical and declaration handlers + * in a pipeline. + * + * @param id This is a URI identifying the type of property desired. + * @return The value of that property, if it is defined. + * + * @exception SAXNotRecognizedException Thrown if the particular + * pipeline stage does not understand the specified identifier. + */ + public Object getProperty (String id) + throws SAXNotRecognizedException; + + /** + * This method provides a filter stage with a handler that abstracts + * presentation of warnings and both recoverable and fatal errors. + * Most pipeline stages should share a single policy and mechanism + * for such reports, since application components require consistency + * in such activities. Accordingly, typical responses to this method + * invocation involve saving the handler for use; filters will pass + * it on to any other consumers they use. + * + * @param handler encapsulates error handling policy for this stage + */ + public void setErrorHandler (ErrorHandler handler); +} |