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   package net.sourceforge.backpedal.impl.db;
   
   import net.sourceforge.backpedal.api.db.BindVariable;
   import net.sourceforge.backpedal.api.db.BindVariableSet;
   import org.apache.commons.lang.builder.ToStringBuilder;
   
   import java.sql.PreparedStatement;
   import java.sql.SQLException;
   import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.Iterator;
  
  public class BindVariableSetImpl implements BindVariableSet {
      private Collection bindVariables = null;
  
      public BindVariableSetImpl() {
          bindVariables = new ArrayList();
      }
  
      public BindVariableSetImpl(Collection bindVariables) {
          this.bindVariables = new ArrayList(bindVariables);
      }
  
      public void add(BindVariable b) {
          bindVariables.add(b);
      }
  
      public Iterator iterator() {
          return Collections.unmodifiableCollection(bindVariables).iterator();
      }
  
      public int size() {
          return bindVariables.size();
      }
  
      public void setInto(PreparedStatement statement) throws SQLException {
          for(Iterator i=iterator();i.hasNext();) {
              ((BindVariable)i.next()).setInto(statement);
          }
      }
  
      public String toString() {
          return new ToStringBuilder(this).
                  append("bindVariables",bindVariables).toString();
      }
  }