source: java/main/src/main/java/com/framsticks/structure/Node.java @ 193

package com.framsticks.structure;

import javax.annotation.Nonnull;
import javax.annotation.concurrent.Immutable;

import com.framsticks.params.CompositeParam;
import com.framsticks.util.FramsticksException;
// import com.framsticks.params.ParamBuilder;
import com.framsticks.util.lang.Strings;

/**
 * @author Piotr Sniegowski
 */
@Immutable
public class Node {

        protected final Tree tree;
        protected final CompositeParam param;
        protected final Object object;

        public Node(Tree tree, @Nonnull CompositeParam param, Object object) {
                assert param != null;
                assert tree != null;
                this.tree = tree;
                this.param = param;
                this.object = object;
        }


        public final Tree getTree() {
                return tree;
        }

        public final CompositeParam getParam() {
                return param;
        }

        public final Object getObject() {
                return object;
        }

        @Override
        public String toString() {
                return param.toString() + ":" + Strings.toStringNullProof(object, "<null>");
        }

        public final boolean isResolved() {
                return object != null;
        }

        public Node assureResolved() {
                if (!isResolved()) {
                        throw new FramsticksException().msg("path is not resolved").arg("node", this);
                }
                return this;
        }

}