text: /*
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   * file that accompanied this code.
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   * If applicable, add the following below the License Header, with the fields
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  package org.glassfish.contextpropagation.weblogic.workarea;
  
  import java.io.IOException;
  
  
  /**
   * <code>WorkContext</code> is a marker interface used for marshaling
   * and unmarshaling user data in a <code>WorkArea</code>. The
   * interfaces {@link WorkContextOutput} and
   * {@link WorkContextInput} will only allow primtive types and
   * objects implementing <code>WorkContext</code> to be marshaled. This
   * limits the type surface area that needs to be dealt with by
   * underlying protocols. <code>WorkContext</code> is analogous to
   * {@link java.io.Externalizable} but with some restrictions on the types
   * that can be marshaled. Advanced {@link java.io.Externalizable}
   * features, such as enveloping, are not supported - implementations
   * should provide their own versioning scheme if
   * necessary. <code>WorkContext</code> implementations must provide a
   * public no-arg constructor.
   *
   */
  public interface WorkContext {
    /**
     * Writes the implementation of <code>WorkContext</code> to the
     * {@link WorkContextOutput} data stream.
     */
    public void writeContext(WorkContextOutput out) throws IOException;
  
    /**
     * Reads the implementation of <code>WorkContext</code> from the
     * {@link WorkContextInput} data stream.
     */
    public void readContext(WorkContextInput in) throws IOException;
  }
  