public void writeExternal ( ObjectOutput out ) throws IOException { if ( TraceComponent . isAnyTracingEnabled ( ) && tc . isEntryEnabled ( ) ) Tr . entry ( tc , "writeExternal" ) ; try { // write magic out . writeShort ( EXTERNAL_MAGIC ) ; out . writeShort ( MAJOR_VERSION ) ; out . writeShort ( MINOR_VERSION ) ; // write the interface type (HOME or REMOTE) if ( _isHome ) { out . writeByte ( IF_HOME ) ; } else { out . writeByte ( IF_REMOTE ) ; } //89554 // write the Java EE name writeExternalJ2EEName ( out ) ; // write the external primary key writeExternalPKey ( out ) ; out . flush ( ) ; } finally { if ( TraceComponent . isAnyTracingEnabled ( ) && tc . isEntryEnabled ( ) ) Tr . exit ( tc , "writeExternal" ) ; } }
writeExternal is called by Java serialization when writeObject is called on an ObjectOutputStream for an object of class BeanId .