Examples of tokyocabinet.BDBCUR.jump()

tokyocabinet.BDBCUR.jump()
Move the cursor to the front of records corresponding a key. @param key the key. @return If successful, it is true, else, it is false. False is returned if there is norecord corresponding the condition. @note The cursor is set to the first record corresponding the key or the next substitute ifcompletely matching record does not exist.

        throw new RuntimeException("Can't jump to last record");
    }else{
    
      //jump to key ahead of our input key
      if(nextKey.size() == 1){    
        if(!cursor.jump(nextKey.get(0)))
          throw new RuntimeException("Key should exist but failed to jump to it's location");        
      } else {
        if(!cursor.jump(nextKey.get(1)))
          throw new RuntimeException("Key should exist but failed to jump to it's location");
      }

View Full Code Here

      //jump to key ahead of our input key
      if(nextKey.size() == 1){    
        if(!cursor.jump(nextKey.get(0)))
          throw new RuntimeException("Key should exist but failed to jump to it's location");        
      } else {
        if(!cursor.jump(nextKey.get(1)))
          throw new RuntimeException("Key should exist but failed to jump to it's location");
      }    
    }
    
    //back one should be the input key, if it's not then the key

View Full Code Here

      if(!cursor.last())
        throw new RuntimeException("Unable to jump to last key");
      
    } else {
      
      if(!cursor.jump(nextKey.get(1)))
        throw new RuntimeException("Key should exist but failed to jump to it's location");
      
    }

View Full Code Here

  
  public void push_front(String key, byte[] value) throws TException {


    BDBCUR cursor = new BDBCUR(bdb);
    
    if(!cursor.jump(key)){
      this.put(key, value);
      return;
    }
    
    //not matching key so add new

View Full Code Here

  
  public byte[] pop_front(String key) throws TException{
    
    BDBCUR cursor = new BDBCUR(bdb);
    
    if(!cursor.jump(key))
      return new byte[]{};
    
    if(!Arrays.equals(cursor.key(),key.getBytes()))
      return new byte[]{};

View Full Code Here

    if(position < 0)
      return null;
    
    BDBCUR cursor = new BDBCUR(bdb);
    
    if(!cursor.jump(key))
      return null;
    
    int currentPos = 0;
    int checkMod = 10; //verify key every few records
    while(currentPos < position){

View Full Code Here

  }
  
  public int length(String key) {
    BDBCUR cursor = new BDBCUR(bdb);
    
    if(!cursor.jump(key))
      return 0;
    
    if(!Arrays.equals(cursor.key(),key.getBytes()))
      return 0;

View Full Code Here

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.