parameterbase.java

招标投标网上系统

/*
 * @(#)ParameterBase.java 
 *
 * Copyright 2003 by SYNTC, All rights reserved.
 *
 * This software is the confidential and proprietary information of SYNTC.
 * ("Confidential Information").
 */
package cn.com.syntc.common.io;

import java.io.Serializable;
import java.util.Hashtable;
import java.util.Enumeration;
import java.lang.Object;

import cn.com.syntc.common.io.CommonException;

 public class ParameterBase{

  protected Hashtable roottable = new Hashtable();

  public ParameterBase() {
  }

  public void setParameters(String category,Object key,Object value){
    try{
      // At first get target category hashtable
      // If no create category yet, it create.
      Hashtable TargetCategory = (Hashtable)roottable.get(category);
      if(TargetCategory == null){
        Hashtable NewCategory = new Hashtable();
        roottable.put(category,NewCategory);
        TargetCategory =  (Hashtable)roottable.get(category);
        // Set any parameter for any category
        TargetCategory.put(key,value);
      } else {
        TargetCategory.put(key,value);
      }
    }catch(Exception e){
        // error
    }
  }

  public Object getParameters(String category,Object key){
    try{
      // At first, get target category hashtable
      // If no exists table, method return null.
      Hashtable TargetCategory = (Hashtable)roottable.get(category);
      if(TargetCategory == null){
        return null;
      } else {
        return TargetCategory.get(key);
      }
    }catch(Exception e){
      // error
      return null;
    }
  }

  public void removeParameters(String category,Object key){
    try{
      Hashtable targetCategory = (Hashtable)roottable.get(category);
      if(targetCategory == null){
        return;
      } else {
        targetCategory.remove(key);
      }
    }catch(Exception e){
      // error
    }
  }

  public void resetParameters(String category,Object key,Object value){
    try{
      // at first, target key remove.
      removeParameters(category,key);
      // and set new value to same key.
      setParameters(category,key,value);
    }catch(Exception e){
      // error
    }
  }

}