package railo.runtime.type.ref;
import railo.runtime.PageContext;
import railo.runtime.exp.PageException;
import railo.runtime.op.Caster;
import railo.runtime.type.Collection;
import railo.runtime.type.KeyImpl;
import railo.runtime.type.StructImpl;
/**
* represent a reference to a Object
*/
public final class NativeReference implements Reference {
private Object o;
private String key;
/**
* Constructor of the class
* @param o
* @param key
*/
private NativeReference(Object o, String key) {
this.o=o;
this.key=key;
}
/**
* returns a Reference Instance
* @param o
* @param key
* @return Reference Instance
*/
public static Reference getInstance(Object o, String key) {
if(o instanceof Reference) {
return new ReferenceReference((Reference)o,key);
}
Collection coll = Caster.toCollection(o,null);
if(coll!=null) return new VariableReference(coll,key);
return new NativeReference(o,key);
}
@Override
public Object getParent() {
return o;
}
public Collection.Key getKey() {
return KeyImpl.init(key);
}
@Override
public String getKeyAsString() {
return key;
}
@Override
public Object get(PageContext pc) throws PageException {
return pc.getCollection(o,key);
}
@Override
public Object get(PageContext pc, Object defaultValue) {
return pc.getCollection(o,key,null);
}
@Override
public Object touch(PageContext pc) throws PageException {
Object rtn=pc.getCollection(o,key,null);
if(rtn!=null) return rtn;
return pc.set(o,key,new StructImpl());
}
public Object touchEL(PageContext pc) {
Object rtn=pc.getCollection(o,key,null);
if(rtn!=null) return rtn;
try {
return pc.set(o,key,new StructImpl());
} catch (PageException e) {
return null;
}
}
@Override
public Object set(PageContext pc,Object value) throws PageException {
return pc.set(o,key,value);
}
public Object setEL(PageContext pc,Object value) {
try {
return pc.set(o,key,value);
} catch (PageException e) {
return null;
}
}
@Override
public Object remove(PageContext pc) throws PageException {
return pc.getVariableUtil().remove(o,key);
}
@Override
public Object removeEL(PageContext pc) {
return pc.getVariableUtil().removeEL(o,key);
}
}