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Java Source Code / Java Documentation » 6.0 JDK Core » io nio » java.io 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   java.lang.Throwable
      java.lang.Exception
         java.io.IOException
            java.io.ObjectStreamException
               java.io.OptionalDataException

OptionalDataException
public class OptionalDataException extends ObjectStreamException (Code)
Exception indicating the failure of an object read operation due to unread primitive data, or the end of data belonging to a serialized object in the stream. This exception may be thrown in two cases:
  • An attempt was made to read an object when the next element in the stream is primitive data. In this case, the OptionalDataException's length field is set to the number of bytes of primitive data immediately readable from the stream, and the eof field is set to false.
  • An attempt was made to read past the end of data consumable by a class-defined readObject or readExternal method. In this case, the OptionalDataException's eof field is set to true, and the length field is set to 0.

author:
   unascribed
version:
   1.29, 05/05/07
since:
   JDK1.1


Field Summary
public  booleaneof
     True if there is no more data in the buffered part of the stream.
public  intlength
     The number of bytes of primitive data available to be read in the current buffer.

Constructor Summary
 OptionalDataException(int len)
    
 OptionalDataException(boolean end)
    


Field Detail
eof
public boolean eof(Code)
True if there is no more data in the buffered part of the stream.



length
public int length(Code)
The number of bytes of primitive data available to be read in the current buffer.




Constructor Detail
OptionalDataException
OptionalDataException(int len)(Code)



OptionalDataException
OptionalDataException(boolean end)(Code)





Fields inherited from java.io.IOException
final static long serialVersionUID(Code)(Java Doc)



Methods inherited from java.lang.Throwable
native public synchronized Throwable fillInStackTrace()(Code)(Java Doc)
public Throwable getCause()(Code)(Java Doc)
public String getLocalizedMessage()(Code)(Java Doc)
public String getMessage()(Code)(Java Doc)
public StackTraceElement[] getStackTrace()(Code)(Java Doc)
public synchronized Throwable initCause(Throwable cause)(Code)(Java Doc)
public void printStackTrace()(Code)(Java Doc)
public void printStackTrace(PrintStream s)(Code)(Java Doc)
public void printStackTrace(PrintWriter s)(Code)(Java Doc)
public void setStackTrace(StackTraceElement[] stackTrace)(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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