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.

                public void close() {
                    throw new UnsupportedOperationException("Objects are not allowed to call ObjectInput.close() from readExternal()");
                }
            };
            CustomObjectInputStream objectInput = CustomObjectInputStream.getInstance(context, callback);
            externalizable.readExternal(objectInput);
            objectInput.popCallback();
            return externalizable;
        } catch (InstantiationException e) {
            throw new ConversionException("Cannot construct " + type.getClass(), e);
        } catch (IllegalAccessException e) {

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                {


          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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                {


          Externalizable exColumn = (Externalizable) neColumn;


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


          arrayPosition++;
          continue;
        }

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                {


          Externalizable exColumn = (Externalizable) neColumn;


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


          arrayPosition++;
          continue;
        }

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                {


          Externalizable exColumn = (Externalizable) neColumn;


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


          arrayPosition++;
          continue;
        }

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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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                public void close() {
                    throw new UnsupportedOperationException("Objects are not allowed to call ObjectInput.close() from readExternal()");
                }
            };
            CustomObjectInputStream objectInput = CustomObjectInputStream.getInstance(context, callback);
            externalizable.readExternal(objectInput);
            objectInput.popCallback();
            return externalizable;
        } catch (InstantiationException e) {
            throw new ConversionException("Cannot construct " + type.getClass(), e);
        } catch (IllegalAccessException e) {

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            in.register(result);
        } catch (InstantiationException e) {
            throw new IOException(e);
        }


        result.readExternal(in);
        return result;
    }


    @Override
    public void skip(DataStream in) throws IOException, ClassNotFoundException {

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