Diff of /incubator/derby/code/trunk/java/client/org/apache/derby/client/ClientXid.java

Parent Directory | Revision Log | Patch

--- incubator/derby/code/trunk/java/client/org/apache/derby/client/ClientXid.java	2005/05/02 05:18:08	165584
+++ incubator/derby/code/trunk/java/client/org/apache/derby/client/ClientXid.java	2005/05/02 06:25:59	165585
@@ -19,202 +19,187 @@
 */
 package org.apache.derby.client;
 
-import javax.transaction.xa.*;
+import javax.transaction.xa.Xid;
 
-public class ClientXid implements Xid
-{
-  //
-  // The format identifier for the Xid. A value of -1 indicates
-  // that the NULLXid
-  //
-  private int          formatID_;
-
-  //
-  // The number of bytes in the global transaction identfier
-  //
-  private int          gtrid_length_;
-
-  //
-  // The number of bytes in the branch qualifier
-  //
-  private int          bqual_length_;
-
-  //
-  // The data for the Xid.
-  // <p> The Xid is made up of two contiguous parts. The first (of size
-  // <b>gtrid_length</b>) is the global transaction identfier and the second
-  // (of size <b>bqual_length</b>) is the branch qualifier.
-  // <p>If the <b>formatID</b> is -1, indicating the NULLXid, the data is
-  //    ignored.
-  //
-  private byte         data_[];
-
-  //
-  // The size of <b>data</b>.
-  //
-  static private final int XidDATASIZE = 128;
-
-  //
-  // The maximum size of the global transaction identifier.
-  //
-  static public final int MAXGTRIDSIZE= 64;
-
-  //
-  // The maximum size of the branch qualifier.
-  //
-  static public  final int MAXBQUALSIZE= 64;
-
-  static private final String hextab_= "0123456789ABCDEF";
-
-
-  //
-  // Constructs a new null Xid.
-  // <p>After construction the data within the Xid should be initialized.
-  //
-  public ClientXid()
-  {
-    data_ = new byte[XidDATASIZE];
-    gtrid_length_ = 0;
-    bqual_length_ = 0;
-    formatID_ = -1;
-  }
-
-  //
-  // another contructor
-  //
-  public ClientXid( int formatID, byte[] gtrid, byte[] bqual )
-  {
-
-    formatID_ = formatID;
-    gtrid_length_ = gtrid.length;
-    bqual_length_ = bqual.length;
-    data_ = new byte[XidDATASIZE];
-    System.arraycopy(gtrid, 0, data_, 0, gtrid_length_);
-    System.arraycopy(bqual, 0, data_, gtrid_length_, bqual_length_);
-  }
-
-  //
-  // Return a string representing this Xid for debuging
-  //
-  // @return the string representation of this Xid
-  //
-  public String toString()
-  {
-     StringBuffer      d;             // Data String, in HeXidecimal
-     String            s;             // Resultant String
-     int               i;
-     int               v;
-     int               L;
-
-     L = gtrid_length_ + bqual_length_;
-     d = new StringBuffer(L+L);
-
-     for( i = 0; i < L; i++ )
-     {
-       // Convert data string to hex
-       v = data_[i] & 0xff;
-       d.append(hextab_.charAt(v/16));
-       d.append(hextab_.charAt(v&15));
-       if ( (i+1)%4 == 0 && (i+1) < L )
-         d.append(" ");
-     }
-
-     s =  "{ClientXid: " +
-		     "formatID("     + formatID_     + "), " +
-		     "gtrid_length(" + gtrid_length_ + "), " +
-		     "bqual_length(" + bqual_length_ + "), " +
-	  "data("         + d.toString()            + ")" +
-	  "}" ;
-     return s;
-  }
-
-  //
-  // Returns the branch qualifier for this Xid.
-  //
-  // @return the branch qualifier
-  //
-  public byte[] getBranchQualifier()
-  {
-    byte[] bqual = new byte[bqual_length_];
-    System.arraycopy(data_,gtrid_length_,bqual,0,bqual_length_);
-    return bqual;
-  }
-
-  //
-  // Set the branch qualifier for this Xid.
-  //
-  // @param qual a Byte array containing the branch qualifier to be set. If
-  // the size of the array exceeds MAXBQUALSIZE, only the first MAXBQUALSIZE
-  // elements of qual will be used.
-  //
-  public void setBranchQualifier( byte[] qual )
-  {
-    bqual_length_ = qual.length > MAXBQUALSIZE?MAXBQUALSIZE:qual.length;
-    System.arraycopy(qual, 0, data_, gtrid_length_, bqual_length_);
-  }
-
-  //
-  // Obtain the format identifier part of the Xid.
-  //
-  // @return Format identifier. -1 indicates a null Xid
-  //
-  public int getFormatId()
-  {
-    return formatID_;
-  }
-
-  //
-  // Set the format identifier part of the Xid.
-  //
-  // @param Format identifier. -1 indicates a null Xid.
-  //
-  public void setFormatID(int  formatID)
-  {
-    formatID_ = formatID;
-    return;
-  }
-
-  //
-  // Returns the global transaction identifier for this Xid.
-  //
-  // @return the global transaction identifier
-  //
-  public byte[] getGlobalTransactionId()
-  {
-    byte[] gtrid = new byte[gtrid_length_];
-    System.arraycopy(data_, 0, gtrid, 0, gtrid_length_);
-    return gtrid;
-  }
-
-  //
-  // return fields of Xid
-  //
-  public byte[] getData()
-  {
-    return data_;
-  }
-
-  public int getGtridLength()
-  {
-    return gtrid_length_;
-  }
-
-  public int getBqualLength()
-  {
-    return bqual_length_;
-  }
-
-  public int hashCode()
-  {
-    if ( formatID_ == (-1) )
-    {
-      return (-1);
-    }
-    return formatID_ + gtrid_length_ - bqual_length_;
-  }
-
-  public boolean equals(Object obj)
-  {
-    return org.apache.derby.client.net.NetXAResource.xidsEqual(this, (javax.transaction.xa.Xid)obj);
-  }
+public class ClientXid implements Xid {
+    //
+    // The format identifier for the Xid. A value of -1 indicates
+    // that the NULLXid
+    //
+    private int formatID_;
+
+    //
+    // The number of bytes in the global transaction identfier
+    //
+    private int gtrid_length_;
+
+    //
+    // The number of bytes in the branch qualifier
+    //
+    private int bqual_length_;
+
+    //
+    // The data for the Xid.
+    // <p> The Xid is made up of two contiguous parts. The first (of size
+    // <b>gtrid_length</b>) is the global transaction identfier and the second
+    // (of size <b>bqual_length</b>) is the branch qualifier.
+    // <p>If the <b>formatID</b> is -1, indicating the NULLXid, the data is
+    //    ignored.
+    //
+    private byte data_[];
+
+    //
+    // The size of <b>data</b>.
+    //
+    static private final int XidDATASIZE = 128;
+
+    //
+    // The maximum size of the global transaction identifier.
+    //
+    static public final int MAXGTRIDSIZE = 64;
+
+    //
+    // The maximum size of the branch qualifier.
+    //
+    static public final int MAXBQUALSIZE = 64;
+
+    static private final String hextab_ = "0123456789ABCDEF";
+
+
+    //
+    // Constructs a new null Xid.
+    // <p>After construction the data within the Xid should be initialized.
+    //
+    public ClientXid() {
+        data_ = new byte[XidDATASIZE];
+        gtrid_length_ = 0;
+        bqual_length_ = 0;
+        formatID_ = -1;
+    }
+
+    //
+    // another contructor
+    //
+    public ClientXid(int formatID, byte[] gtrid, byte[] bqual) {
+
+        formatID_ = formatID;
+        gtrid_length_ = gtrid.length;
+        bqual_length_ = bqual.length;
+        data_ = new byte[XidDATASIZE];
+        System.arraycopy(gtrid, 0, data_, 0, gtrid_length_);
+        System.arraycopy(bqual, 0, data_, gtrid_length_, bqual_length_);
+    }
+
+    //
+    // Return a string representing this Xid for debuging
+    //
+    // @return the string representation of this Xid
+    //
+    public String toString() {
+        StringBuffer d;             // Data String, in HeXidecimal
+        String s;             // Resultant String
+        int i;
+        int v;
+        int L;
+
+        L = gtrid_length_ + bqual_length_;
+        d = new StringBuffer(L + L);
+
+        for (i = 0; i < L; i++) {
+            // Convert data string to hex
+            v = data_[i] & 0xff;
+            d.append(hextab_.charAt(v / 16));
+            d.append(hextab_.charAt(v & 15));
+            if ((i + 1) % 4 == 0 && (i + 1) < L) {
+                d.append(" ");
+            }
+        }
+
+        s = "{ClientXid: " +
+                "formatID(" + formatID_ + "), " +
+                "gtrid_length(" + gtrid_length_ + "), " +
+                "bqual_length(" + bqual_length_ + "), " +
+                "data(" + d.toString() + ")" +
+                "}";
+        return s;
+    }
+
+    //
+    // Returns the branch qualifier for this Xid.
+    //
+    // @return the branch qualifier
+    //
+    public byte[] getBranchQualifier() {
+        byte[] bqual = new byte[bqual_length_];
+        System.arraycopy(data_, gtrid_length_, bqual, 0, bqual_length_);
+        return bqual;
+    }
+
+    //
+    // Set the branch qualifier for this Xid.
+    //
+    // @param qual a Byte array containing the branch qualifier to be set. If
+    // the size of the array exceeds MAXBQUALSIZE, only the first MAXBQUALSIZE
+    // elements of qual will be used.
+    //
+    public void setBranchQualifier(byte[] qual) {
+        bqual_length_ = qual.length > MAXBQUALSIZE ? MAXBQUALSIZE : qual.length;
+        System.arraycopy(qual, 0, data_, gtrid_length_, bqual_length_);
+    }
+
+    //
+    // Obtain the format identifier part of the Xid.
+    //
+    // @return Format identifier. -1 indicates a null Xid
+    //
+    public int getFormatId() {
+        return formatID_;
+    }
+
+    //
+    // Set the format identifier part of the Xid.
+    //
+    // @param Format identifier. -1 indicates a null Xid.
+    //
+    public void setFormatID(int formatID) {
+        formatID_ = formatID;
+        return;
+    }
+
+    //
+    // Returns the global transaction identifier for this Xid.
+    //
+    // @return the global transaction identifier
+    //
+    public byte[] getGlobalTransactionId() {
+        byte[] gtrid = new byte[gtrid_length_];
+        System.arraycopy(data_, 0, gtrid, 0, gtrid_length_);
+        return gtrid;
+    }
+
+    //
+    // return fields of Xid
+    //
+    public byte[] getData() {
+        return data_;
+    }
+
+    public int getGtridLength() {
+        return gtrid_length_;
+    }
+
+    public int getBqualLength() {
+        return bqual_length_;
+    }
+
+    public int hashCode() {
+        if (formatID_ == (-1)) {
+            return (-1);
+        }
+        return formatID_ + gtrid_length_ - bqual_length_;
+    }
+
+    public boolean equals(Object obj) {
+        return org.apache.derby.client.net.NetXAResource.xidsEqual(this, (javax.transaction.xa.Xid) obj);
+    }
 } // class Xid