EVEDemo.SWEEP
Class Tuple

java.lang.Object
  |
  +--EVEDemo.SWEEP.Tuple
public class Tuple
extends java.lang.Object
implements java.io.Serializable, java.lang.Cloneable

See Also:
Serialized Form

Field Summary
(package private)  java.util.Vector fields
           
(package private)  int number
          String Arrays.
 
Constructor Summary
Tuple()
           
Tuple(java.io.DataInputStream din)
           
Tuple(int Count, java.lang.String Value)
          Construct a Tuple from a count number and a String.
Tuple(java.sql.ResultSet rs, int colNum)
           
Tuple(java.sql.ResultSet rs, int colNum, java.lang.String sign)
          Skip Sign field and set the Sign bit.
Tuple(java.lang.String[] newFields)
          this constructor will create tuple from a list of strings, default sign is insert.
Tuple(java.lang.String[] newFields, int newNumber)
           
 
Method Summary
 void addField(java.lang.Object newField)
           
 void calSign(int[] flags)
          It will recalculate the sign depends on the flags.
 java.lang.Object clone()
           
 void doProject(int[] flags)
          Do Project depends on the flags.
 boolean equals(Tuple t)
           
 java.lang.Object getField(int i)
           
 int getNum()
           
 int getNumber()
           
 void reverse()
           
 void setNumber(int newNumber)
           
 int size()
           
 java.lang.String SQL()
           
 java.lang.String SQL(java.lang.String sign)
          Add SWEEPSIGN field.
 java.lang.String toString()
          Convert to String.
 void write(java.io.DataOutputStream dout)
           
 
Methods inherited from class java.lang.Object
, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, wait, wait, wait
 

Field Detail

fields

java.util.Vector fields

number

int number
String Arrays.
Constructor Detail

Tuple

public Tuple()

Tuple

public Tuple(int Count,
             java.lang.String Value)
Construct a Tuple from a count number and a String.
Parameters:
Count - number of copies
Value - Fields in format: "A|B|C"

Tuple

public Tuple(java.lang.String[] newFields)
this constructor will create tuple from a list of strings, default sign is insert.

Tuple

public Tuple(java.lang.String[] newFields,
             int newNumber)

Tuple

public Tuple(java.io.DataInputStream din)

Tuple

public Tuple(java.sql.ResultSet rs,
             int colNum)
      throws java.lang.Exception

Tuple

public Tuple(java.sql.ResultSet rs,
             int colNum,
             java.lang.String sign)
      throws java.lang.Exception
Skip Sign field and set the Sign bit.
Method Detail

toString

public java.lang.String toString()
Convert to String.
Overrides:
toString in class java.lang.Object

reverse

public void reverse()

SQL

public java.lang.String SQL()

SQL

public java.lang.String SQL(java.lang.String sign)
Add SWEEPSIGN field.

getNum

public int getNum()

write

public void write(java.io.DataOutputStream dout)

getNumber

public int getNumber()

setNumber

public void setNumber(int newNumber)
               throws java.lang.Exception

getField

public java.lang.Object getField(int i)
                          throws java.lang.Exception

equals

public boolean equals(Tuple t)
               throws java.lang.Exception

size

public int size()

addField

public void addField(java.lang.Object newField)

clone

public java.lang.Object clone()
Overrides:
clone in class java.lang.Object

doProject

public void doProject(int[] flags)
               throws java.lang.Exception
Do Project depends on the flags.

calSign

public void calSign(int[] flags)
             throws java.lang.NullPointerException,
                    NotMatchException,
                    java.lang.Exception
It will recalculate the sign depends on the flags. all the fields corresponding of flags should be same, then the sign is positive; otherwise, it is negative. e.g. tuple (n, 5, n, 6)[-3], flags is (0, 1, 0, 1), then the tuple should be: (n,5,n,6)[3];