ParamCollection.java

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package cedar.jetweb.model.parameters;

import cedar.jetweb.JetWebException;

import java.util.HashMap;
import java.util.Vector;


public class ParamCollection <T>{

    private Integer id_ = -1;
    private HashMap<Integer, Param<T> > paramsById_ = 
    new HashMap<Integer, Param<T> >();

    private HashMap<String, Param<T> > paramsByName_ = 
    new HashMap<String, Param<T> >();


    public ParamCollection(Integer id){
    id_ = id;
    }

    public Integer getCollectionId(){
    return id_;
    }

    public ParamCollection<T> setCollectionId(Integer id){
    id_ = id;
    return this;
    }

    public Vector<Param<T> > getParams(){
    return (Vector<Param<T>>)paramsById_.values();
    }

    public Param<T> get(String name){
    return paramsByName_.get(name);
    }

    public Param<T> get(Integer id){
    return paramsById_.get(id);
    }

    public Integer size(){
    return paramsById_.size();
    }


    public ParamCollection<T> add(Param<T> param)
    throws JetWebException{
    
    String name = param.getName();
    Integer id = param.getParamId();

    if(id<0 && name.equals("")){
        throw new JetWebException
        ("Attempting to add unspecified parameter to collection",
         "param value = " + param.getValue());
    }
    Param<T> byName = paramsByName_.get(name);
    Param<T> byId = paramsById_.get(id);
    
    boolean gotName = byName != null;
    boolean gotId = byId != null;
    
    if(gotName && gotId ){
        if(!byName.equals(byId)){
        throw new JetWebException
            ("Attempting to add parameter to collection " + 
             "with conflicting name and id!",
             "name, id = " + name + ", " + id);
        }else{
        return this;
        }
    }

    if(gotName){
        paramsById_.put(byName.getParamId(), byName);
        return this;
    }

    if(gotId){
        paramsByName_.put(byId.getName(), byId);
        return this;
    }
    
    if(id>0){
        paramsById_.put(id, param);
    }

    if(!name.equals("")){
        paramsByName_.put(name, param);
    }

    return this;
    }


    public boolean retrieve(){
    return false;
    }

    public boolean store(){
    return false;
    }

}

Generated Wed Jan 17 09:14:27 GMT 2007