Java.io.PipedInputStream klase Java valodā

Caurules IO nodrošina saiti starp diviem pavedieniem, kas vienlaikus darbojas JVM. Tāpēc caurules tiek izmantotas gan kā avots, gan galamērķis.  

• PipedInputStream tiek arī savienots ar PipedOutputStream. Tātad datus var rakstīt, izmantojot PipedOutputStream, un tos var rakstīt, izmantojot PipedInputStream. Taču, vienlaikus izmantojot abus pavedienus, pavedieni nonāks strupceļā.
• PipedOutputStream sūta caurules galu. Dati tiek ierakstīti PipedOutputStream. Tiek uzskatīts, ka caurule ir pārrauta, ja PipedInputStream, kas lasīja datus, vairs nav.

Deklarācija:   

 public class PipedOutputStream   
  extends OutputStream   
 
    Konstruktors:        
  
 
    PipedOutputStream() :    izveido PipedOutputStream, ka tā nav savienota.  
 
    PipedOutputStream(PipedOutputStream inStream) :    izveido PipedOutputStream, ka tas    
 ir savienots ar PipedInputStream — 'inStream'.  
 
 
    Metodes:     
  
    write() : java.io.PipedOutputStream.write(int byte)    ieraksta norādīto baitu cauruļvadu izvades straumē.   
  
    Sintakse :     
  
    public void write(int byte)     
  
    Parameters :      
 byte : byte to be written   
  
    Return :     void   
    Exception :     
 ->      IOException :     if in case IO error occurs.  
    write(baits[] bufera int offset int maxlen) : java.io.PipedOutputStream.write(baits[] bufera int nobīde int maxlen)    ieraksta maksimālus baitus datu no bufera uz cauruļu izvades straumi. Metode bloķē, ja straumē nav ierakstīti baiti.   
  
    Sintakse :     
  
    public void write(byte[] buffer int offset int maxlen)     
  
    Parameters :      
 buffer : data of the buffer   
 offset : starting in the destination array - 'buffer'.   
 maxlen : maximum length of array to be read   
  
    Return :     void   
    Exception :     
 ->      IOException :     if in case IO error occurs.  Java   
   // Java program illustrating the working of PipedInputStream   // write(byte[] buffer int offset int maxlen)   import     java.io.*  ;   public     class   NewClass   {      public     static     void     main  (  String  []     args  )     throws     IOException      {      PipedInputStream     geek_input     =     new     PipedInputStream  ();      PipedOutputStream     geek_output     =     new     PipedOutputStream  ();      // Use of connect() : connecting geek_input with geek_output      geek_input  .  connect  (  geek_output  );      byte  []     buffer     =     {  'J'       'A'       'V'       'A'  };      // Use of write(byte[] buffer int offset int maxlen)      geek_output  .  write  (  buffer       0       4  );      int     a     =     5  ;      System  .  out  .  print  (  'Use of write(buffer offset maxlen) : '  );      while  (  a  >  0  )      {      System  .  out  .  print  (  ' '     +     (  char  )     geek_input  .  read  ());      a  --  ;      }      }   }   
   
    Izvade:     
  
 Use of write(buffer offset maxlen) : J A V A   
 
 
    aizvērt() : java.io.PipedOutputStream.close()    aizver cauruļu izvades straumi un atbrīvo piešķirtos resursus.    
    Sintakse :     
 
 
 public void close()   
    Parameters :      
 --------------   
    Return :         
 void   
    Exception :     
 ->      IOException :     if in case IO error occurs.   
 
 
    savienojums(PipedInputStream galamērķis) : java.io.PipedOutputStream.connect(PipedInputStream galamērķis    savieno cauruļvadu izvades straumi ar 'galamērķa' cauruļu ievades straumi un gadījumā, ja galamērķis ir caurules ar kādu citu straumes IO izņēmumu    
    Sintakse :     
 
 
 public void connect(PipedInputStream destination)   
    Parameters :      
 destination : the Piped Input Stream to be connected to   
    Return :         
 void   
    Exception :     
 ->      IOException :     if in case IO error occurs.   
 
 
    flush() : java.io.PipedOutputStream.flush()    izskalo izvades straumi.    
    Sintakse :     
 
 
 public void flush()   
    Parameters :      
 ------------   
    Return :         
 void   
    Exception :     
 ->      IOException :     if in case IO error occurs.   
 
    Java kods, kas ilustrē PipedOutputStream klases metožu darbību:     
 Java   
   // Java program illustrating the working of PipedInputStream   // write() write(byte[] buffer int offset int maxlen)   // close() flush() connect()   import     java.io.*  ;   public     class   NewClass   {      public     static     void     main  (  String  []     args  )     throws     IOException      {      PipedInputStream     geek_input     =     new     PipedInputStream  ();      PipedOutputStream     geek_output     =     new     PipedOutputStream  ();      try      {      // Use of connect() : connecting geek_input with geek_output      geek_input  .  connect  (  geek_output  );      // Use of write(int byte) :      geek_output  .  write  (  71  );      geek_output  .  write  (  69  );      geek_output  .  write  (  69  );      geek_output  .  write  (  75  );      geek_output  .  write  (  83  );      // Use of flush() method :      geek_output  .  flush  ();      System  .  out  .  println  (  'Use of flush() method : '  );      int     i     =     5  ;      while  (  i     >     0  )      {      System  .  out  .  print  (  ' '     +     (  char  )     geek_input  .  read  ());      i  --  ;      }      // USe of close() method :      System  .  out  .  println  (  'nClosing the Output stream'  );      geek_output  .  close  ();      }      catch     (  IOException     except  )      {      except  .  printStackTrace  ();      }      }   }   
   
    Izvade:     
  
 Use of flush() method :    
  G E E K S   
 Closing the Output stream   
  
     
    
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