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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/java/beans/decoder/ConstructorContext.java | |
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Diffstat (limited to 'libjava/classpath/gnu/java/beans/decoder/ConstructorContext.java')
-rw-r--r-- | libjava/classpath/gnu/java/beans/decoder/ConstructorContext.java | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/beans/decoder/ConstructorContext.java b/libjava/classpath/gnu/java/beans/decoder/ConstructorContext.java new file mode 100644 index 000000000..32365eef4 --- /dev/null +++ b/libjava/classpath/gnu/java/beans/decoder/ConstructorContext.java @@ -0,0 +1,102 @@ +/* gnu.java.beans.decoder.ConstructorContext + Copyright (C) 2004 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.java.beans.decoder; + +import java.lang.reflect.Constructor; +import java.lang.reflect.InvocationTargetException; +import java.util.ArrayList; + +/** A ConstructorContext is a {@link Context} implementation which collects the parameters for a constructor + * call and instantiates the result object using that constructor. After that sub-contexts can invoke + * methods on the result object. + * + * <p>The constructor is invoked when a sub-context is a statement or the Context ends.</p> + * + * @author Robert Schuster + */ +class ConstructorContext extends AbstractCreatableObjectContext +{ + private ArrayList arguments = new ArrayList(); + private Class klass; + + ConstructorContext(String id, Class newClass) + { + setId(id); + // sets superclass field + klass = newClass; + } + + /* (non-Javadoc) + * @see gnu.java.beans.decoder.Context#addObject(java.lang.Object) + */ + protected void addParameterObjectImpl(Object o) + { + arguments.add(o); + } + + protected Object createObject(Context outerContext) + throws AssemblyException + { + Object[] args = arguments.toArray(); + + try + { + Constructor constructor = MethodFinder.getConstructor(klass, args); + + // instantiates object (klass field gets re-set by superclass) + return constructor.newInstance(args); + } + catch (NoSuchMethodException nsme) + { + throw new AssemblyException(nsme); + } + catch (InvocationTargetException ite) + { + throw new AssemblyException(ite.getCause()); + } + catch (IllegalAccessException iae) + { + throw new AssemblyException(iae); + } + catch (InstantiationException ie) + { + throw new AssemblyException(ie); + } + } + +} |