initial import into svn

1 files changed, 29 insertions, 0 deletions

diff --git a/shared/remotecall/RemoteCall.java b/shared/remotecall/RemoteCall.java
new file mode 100644
index 0000000..5accf28
--- /dev/null
+++ b/shared/remotecall/RemoteCall.java
@@ -0,0 +1,29 @@
+package shared.remotecall;
+
+import java.io.*;
+
+/**
+ * This is the abstract base class of all other classes of the shared.remotecall package.
+ * Its defining some common methods. 
+ * @author buetow
+ *
+ */
+public abstract class RemoteCall {
+	/**
+	 * This is a help method for writeObject of the child classes, needed for ojbect serialization (sending part).
+	 * It checks if object is defined. If yes, it will be written to the given object output stream with a leading
+	 * flag with the value true. Otherwise only the false flag will be written to the object output stream.
+	 * @param objectOutputStream Specifies the output stream.
+	 * @throws IOException
+	 */
+	protected final void writeObjectIfDefined(ObjectOutputStream objectOutputStream, Object object) 
+		throws IOException {
+		if (object == null) {
+			objectOutputStream.writeBoolean(false);
+			
+		} else {
+			objectOutputStream.writeBoolean(true);
+			objectOutputStream.writeObject(object);
+		}
+	}
+}