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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/org/omg/CORBA_2_3/portable/InputStream.java
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+/* InputStream.java --
+ Copyright (C) 2005, 2006 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 org.omg.CORBA_2_3.portable;
+
+import gnu.CORBA.CDR.Vio;
+
+import org.omg.CORBA.CustomMarshal;
+import org.omg.CORBA.portable.BoxedValueHelper;
+import org.omg.CORBA.portable.StreamableValue;
+
+import java.io.Serializable;
+
+/**
+ * This class defines a new CDR input stream methods, added since
+ * CORBA 2.3.
+ *
+ * This class is abstract; no direct instances can be instantiated.
+ * Also, up till v 1.4 inclusive there are no methods that would
+ * return it, and only one unimplemented interface,
+ * {@link org.omg.CORBA.portable.ValueFactory }, needs it as a parameter.
+ *
+ * However since 1.3 all methods, declared as returning an
+ * org.omg.CORBA.portable.InputStream actually return the instance of this
+ * derived class and the new methods are accessible after the casting
+ * operation.
+ *
+ * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
+ */
+public abstract class InputStream
+ extends org.omg.CORBA.portable.InputStream
+{
+ /**
+ * Read the abstract interface. An abstract interface can be either
+ * CORBA value type or CORBA object and is returned as an abstract
+ * java.lang.Object.
+ *
+ * As specified in OMG specification, this reads a single
+ * boolean and then delegates either to {@link #read_Object()} (for false)
+ * or to {@link #read_value()} (for true).
+ *
+ * @return an abstract interface, unmarshaled from the stream.
+ */
+ public Object read_abstract_interface()
+ {
+ boolean isObject = read_boolean();
+
+ if (isObject)
+ return read_Object();
+ else
+ return read_value();
+ }
+
+ /**
+ * Read the abstract interface, corresponding to the passed type.
+ * An abstract interface can be either CORBA value type or CORBA
+ * object and is returned as an abstract java.lang.Object.
+ *
+ * As specified in OMG specification, this reads a single
+ * boolean and then delegates either to {@link #read_Object(Class)} (for false)
+ * or to {@link #read_value(Class)} (for true).
+ *
+ * @param clz a base class for the abstract interface.
+ *
+ * @return an abstract interface, unmarshaled from the stream
+ */
+ @SuppressWarnings("unchecked") // Needed for API compatibility
+ public Object read_abstract_interface(Class clz)
+ {
+ boolean isValue = read_boolean();
+
+ if (isValue)
+ return read_value(clz);
+ else
+ return read_Object(clz);
+ }
+
+ /**
+ * Read a value type structure, extracting the repository id
+ * from the input stream itself. The repository id is optional
+ * in the value type record, but it must be present for this
+ * method to succeed. The {@link OutputStream} of this
+ * implementation always stores the repository id.
+ *
+ * The casts the streams ORB into a CORBA 2.3 ORB and then
+ * searched for a suitable value factory, where it delegates
+ * the functionality.
+ *
+ * If you know the exact class or can create an unitialised instance
+ * of the value type, it is recommended (faster) to use
+ * {@link #read_value(Class)} or {@link #read_value(Serializable)}
+ * instead.
+ *
+ * @return an value type structure, unmarshaled from the stream
+ */
+ public Serializable read_value()
+ {
+ return Vio.read(this);
+ }
+
+ /**
+ * Read a value type structure, corresponing to the passed type.
+ * As the type is known, the repository Id in the input stream is
+ * optional an not required. The codebase, if present, is also ignored.
+ *
+ * The passed class must implement either {@link CustomMarshal}
+ * for the user-defined reading operations or {@link StreamableValue}
+ * for the standard (generated by IDL compiler) reading operations.
+ * Also, it must have the parameterless constructor to create a new
+ * instance.
+ *
+ * @param clz a base class for a value type.
+ *
+ * @return an value type structure, unmarshaled from the stream
+ */
+ @SuppressWarnings("unchecked") // Needed for API compatibility
+ public Serializable read_value(Class clz)
+ {
+ return Vio.read(this, clz);
+ }
+
+ /**
+ * Read a value type structure content, when the unitialised
+ * instance is passed as a parameter. It is a fastest method to read
+ * a value type.
+ *
+ * As the type is known, the repository Id in the input stream is
+ * optional an not required. The codebase, if present, is also ignored.
+ *
+ * The passed instance must implement either {@link CustomMarshal}
+ * for the user-defined reading operations or {@link StreamableValue}
+ * for the standard (generated by IDL compiler) reading operations.
+ *
+ * @param unitialised_value the unitialised value.
+ *
+ * @return same value, filled in by the stream content.
+ */
+ public Serializable read_value(Serializable unitialised_value)
+ {
+ return (Serializable) Vio.read(this, unitialised_value, null);
+ }
+
+ /**
+ * Read a value type structure, having the given repository id.
+ * The casts the streams ORB into a CORBA 2.3 ORB and then
+ * searched for a suitable value factory, where it delegates
+ * the functionality.
+ *
+ * If you know the exact class or can create an unitialised instance
+ * of the value type, it is recommended (faster) to use
+ * {@link #read_value(Class)} or {@link #read_value(Serializable)}
+ * instead.
+ *
+ * @param repository_id a repository id of the value type.
+ *
+ * @return an value type structure, unmarshaled from the stream
+ */
+ public Serializable read_value(String repository_id)
+ {
+ return Vio.read(this, repository_id);
+ }
+
+ /**
+ * Use the provided boxed value helper to read the value.
+ *
+ * @param helper a helper for reading the value from the stream.
+ *
+ * @return an value type structure, unmarshaled from the stream.
+ */
+ public Serializable read_value(BoxedValueHelper helper)
+ {
+ return Vio.read(this, helper);
+ }
+}