package foundation.dao;

import foundation.data.entity.Entity;
import foundation.data.entity.EntitySet;

public class DataCell {

	private Object value;
	
	public void load(Object value) {
		this.value = value;
	}

	public Object getValue() {
		return value;
	}

	public Entity getEntity() {
		if (value == null) {
			return null;
		}
		
		return (Entity)value;
	}

	public EntitySet getEntitySet() {
		if (value == null) {
			return null;
		}
		
		return (EntitySet)value;
	}

	public Boolean isEntitySet() {
		if (value == null) {
			return null;
		}
		
		return value instanceof EntitySet;
	}

	public Boolean isEntity() {
		if (value == null) {
			return null;
		}
		
		return value instanceof Entity;
	}

	public boolean isEmpty() {
		if (value == null) {
			return true;
		}
		
		if (value instanceof Entity) {
			return ((Entity)value).isEmpty();
		}
		else if (value instanceof EntitySet) {
			return ((EntitySet)value).isEmpty();
		}
		
		return true;
	}

}