objectlist.java

一个agent 工具包,可以开发移动设备应用,考虑了安全措施

package SOMA.security.utility;



public class ObjectList
{

    java.lang.Object Obj;
    ObjectList next;

    static public java.lang.Object[] toObjectArray(ObjectList ol){
        java.lang.Object ret[] = new java.lang.Object[ol.length()];

        for (int i=0; i<ol.length(); i++)
            ret[i]=ol.element(i);

        return ret;
    }

    ObjectList(){
        this.Obj=null;
        this.next=null;
    }

    ObjectList(java.lang.Object Obj){
        this.Obj=Obj;
        this.next=null;
    }

    ObjectList(java.lang.Object Obj, ObjectList ObjLst){
        this.Obj  = Obj;
        this.next = ObjLst;
    }

    public int length () {
        if (this.Obj==null) return 0;
        if (this.next==null) return 1;
        else return (this.next.length() + 1);
    }

    public java.lang.Object element(long i){
        if (i <= 0) return this.Obj;
        if (this.next == null) return null;
        return this.next.element(i-1);
    }

    public java.lang.Object head(){
        return this.Obj;
    }

    public ObjectList tail(){
        return this.next;
    }

    public ObjectList cons(java.lang.Object Obj){
        if (this.Obj!=null) return new ObjectList(Obj,this.next);

        this.Obj = Obj;
        return this;
    }

    public boolean empty(){
        return (this.Obj==null);
    }

    public ObjectList emptyList(){
        return new ObjectList();
    }

    public void add(java.lang.Object newObj){
        if (this.Obj==null) this.Obj = newObj;
        else
            if (this.next==null) this.next=new ObjectList(newObj);
            else this.next.add(newObj);
    }

    public void addOrd(java.lang.Object newObj){
        if (this.Obj==null) this.Obj = newObj;
        else
            if ((this.Obj.toString()).compareTo(newObj.toString()) <= 0){
               ObjectList stemp = new ObjectList(this.Obj);
               stemp.next = this.next;
               this.next = stemp;
               this.Obj  = newObj;
            }
            else this.next.addOrd(newObj);
    }

    public boolean inList(java.lang.Object obj) {
        if (this.Obj == null) return false;
        if (this.Obj.equals(obj)) return true;
        if (this.next == null) return false;
        return this.next.inList(obj);
    }


    public void println(){
        if (this.Obj != null){
            System.out.println("<#class name: ObjectList;" + this + ";String: " + this.Obj.toString());
            if (this.next != null) this.next.println();
        }
    }
}