Examples of java.io.Externalizable.readExternal()

java.io.Externalizable.readExternal()
The object implements the readExternal method to restore its contents by calling the methods of DataInput for primitive types and readObject for objects, strings and arrays. The readExternal method must read the values in the same sequence and with the same types as were written by writeExternal. @param in the stream to read data from in order to restore the object @exception IOException if I/O errors occur @exception ClassNotFoundException If the class for an object beingrestored cannot be found.

                {


          Externalizable exColumn = (Externalizable) neColumn;


          inUserCode = true;
          exColumn.readExternal(logicalDataIn);
          inUserCode = false;


          arrayPosition++;
          continue;
        }

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                        // Read format version
                        readFormatVersion();


                        Externalizable ext = (Externalizable)currentObject;
                        ext.readExternal(this);
                }
            } catch (InvocationTargetException e) {
                InvalidClassException exc = new InvalidClassException(
                    currentClass.getName(),
                    "InvocationTargetException accessing no-arg constructor");

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                        // Read format version
                        readFormatVersion();


                        Externalizable ext = (Externalizable)currentObject;
                        ext.readExternal(this);
                    }
                } catch (InvocationTargetException e) {
                    InvalidClassException exc = new InvalidClassException(
                        currentClass.getName(),
                        "InvocationTargetException accessing no-arg constructor");

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                        idx = instanceCache.size();
                        instanceCache.add(unshared ? UNSHARED : obj);
                        if (obj instanceof Externalizable) {
                            final Externalizable externalizable = (Externalizable) obj;
                            if ((descriptor.getFlags() & SC_BLOCK_DATA) != 0) {
                                externalizable.readExternal(blockUnmarshaller);
                                blockUnmarshaller.readToEndBlockData();
                                blockUnmarshaller.unblock();
                            } else {
                                // data is not in block format!
                                externalizable.readExternal(this);

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                                externalizable.readExternal(blockUnmarshaller);
                                blockUnmarshaller.readToEndBlockData();
                                blockUnmarshaller.unblock();
                            } else {
                                // data is not in block format!
                                externalizable.readExternal(this);
                            }
                        } else {
                            throw new InvalidObjectException("Created object should be Externalizable but it is not");
                        }
                    } else {

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                    } else {
                        throw new InvalidClassException(type.getName(), "Class is non-public or has no public no-arg constructor");
                    }
                    final int idx = instanceCache.size();
                    instanceCache.add(obj);
                    obj.readExternal(blockUnmarshaller);
                    blockUnmarshaller.readToEndBlockData();
                    blockUnmarshaller.unblock();
                    final Object resolvedObject = objectResolver.readResolve(serializableClass.hasReadResolve() ? serializableClass.callReadResolve(obj) : obj);
                    if (unshared) {
                        instanceCache.set(idx, null);

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                extclass=mConfigurator.get(magic);
            }//end if
            //instantiate the object
            Externalizable newinstance=(Externalizable)extclass.newInstance();
            //populate the object with its data
            newinstance.readExternal(in);
            //return the instance
            return newinstance;
        }
        catch(Throwable x) {
            if(x instanceof IOException)

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                if (gzipEnabled) {
                    objectInputStream = newObjectInputStream(in.getClassLoader(), new GZIPInputStream(inputStream));
                } else {
                    objectInputStream = newObjectInputStream(in.getClassLoader(), inputStream);
                }
                ds.readExternal(objectInputStream);
                return ds;
            } catch (final Exception e) {
                throw new HazelcastSerializationException("Problem while reading Externalizable class : "
                        + className + ", exception: " + e);
            }

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                ByteArrayInputStream baIn = new ByteArrayInputStream(ba);
                try
                {
                    //objIn.setDebugTrace(trace);
                    objIn.setInputStream(baIn);
                    extern.readExternal(objIn);
                }
                catch (ClassNotFoundException ex)
                {
                    throw new MessageException("Error while reading Externalizable class " + extern.getClass().getName(), ex);
                }

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                {


          Externalizable exColumn = (Externalizable) neColumn;


          inUserCode = true;
          exColumn.readExternal(logicalDataIn);
          inUserCode = false;


          arrayPosition++;
          continue;
        }

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