archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/sql/SQLResultSetCollection.java

   1 package com.quantum.sql;
   2
   3 import java.beans.PropertyChangeListener;
   4 import java.beans.PropertyChangeSupport;
   5 import java.util.ArrayList;
   6 import java.util.Collections;
   7 import java.util.List;
   8
   9
  10 /**
  11  * @author BC
  12  */
  13 public class SQLResultSetCollection {
  14
  15         private static final SQLResultSetCollection instance = new SQLResultSetCollection();
  16
  17         private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);
  18
  19         private List results = Collections.synchronizedList(new ArrayList());
  20
  21         private SQLResultSetCollection() {
  22         }
  23         public static SQLResultSetCollection getInstance() {
  24                 return SQLResultSetCollection.instance;
  25         }
  26
  27         public void addPropertyChangeListener(PropertyChangeListener arg0) {
  28                 this.propertyChangeSupport.addPropertyChangeListener(arg0);
  29         }
  30         public void removePropertyChangeListener(PropertyChangeListener arg0) {
  31                 this.propertyChangeSupport.removePropertyChangeListener(arg0);
  32         }
  33
  34         public void addSQLResultSet(SQLResultSetResults resultSet) {
  35                 this.results.add(resultSet);
  36                 this.propertyChangeSupport.firePropertyChange("resultSets", null, resultSet);
  37         }
  38
  39         public void removeSQLResultSet(SQLResultSetResults resultSet) {
  40                 if (this.results.remove(resultSet)) {
  41                         this.propertyChangeSupport.firePropertyChange("resultSets", resultSet, null);
  42                 }
  43         }
  44
  45         public void removeAllSQLResultSet() {
  46                 if (this.results.size() > 0) {
  47                         this.results.clear();
  48                 }
  49                 this.propertyChangeSupport.firePropertyChange("resultSets", null, null);
  50         }
  51
  52         public SQLResultSetResults[] getResultSets() {
  53                 return (SQLResultSetResults[]) this.results.toArray(
  54                                 new SQLResultSetResults[this.results.size()]);
  55         }
  56 }