com.knowgate.dataobjs
Class DBKeySet

java.lang.Object
  java.util.AbstractCollection
      java.util.AbstractSet
          java.util.TreeSet
              com.knowgate.dataobjs.DBKeySet

All Implemented Interfaces:

java.lang.Cloneable, java.util.Collection, java.io.Serializable, java.util.Set, java.util.SortedSet

public class DBKeySet

extends java.util.TreeSet

Load a primary keys set from the database into a java.util.TreeSet

Version:

1.0

See Also:

Serialized Form

Constructor Summary

DBKeySet(java.lang.String sTableName, java.lang.String sColumnName, java.lang.String sWhereClause, int iLimit)

Method Summary

int	count(JDCConnection oConn)
int	load(JDCConnection oConn) Load primary keys from the database to this TreeSet
int	load(JDCConnection oConn, java.lang.Object[] aParams) Load primary keys from the database to this TreeSet

Methods inherited from class java.util.TreeSet

add, addAll, clear, clone, comparator, contains, first, headSet, isEmpty, iterator, last, remove, size, subSet, tailSet

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

containsAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

containsAll, equals, hashCode, removeAll, retainAll, toArray, toArray

Constructor Detail

DBKeySet

public DBKeySet(java.lang.String sTableName,
                java.lang.String sColumnName,
                java.lang.String sWhereClause,
                int iLimit)

Parameters:

sTableName - Table Name

sColumnName - Column Name

sWhereClause - SQL WHERE clause

iLimit - Absolute maximum number of primary key to be loaded

Method Detail

load

public int load(JDCConnection oConn)
         throws java.sql.SQLException

Load primary keys from the database to this TreeSet

Parameters:

oConn - JDBC Database Connection

Returns:

Number of keys actually readed

Throws:

java.sql.SQLException

load

public int load(JDCConnection oConn,
                java.lang.Object[] aParams)
         throws java.sql.SQLException

Load primary keys from the database to this TreeSet

Parameters:

oConn - JDBC Database Connection

aParams - Parameters to be binded to prepared SQL

Returns:

Number of keys actually readed

Throws:

java.sql.SQLException

count

public int count(JDCConnection oConn)
          throws java.sql.SQLException

Throws:

java.sql.SQLException