org.calrissian.mango.criteria.support

Class NodeUtils

java.lang.Object

org.calrissian.mango.criteria.support.NodeUtils

public class NodeUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
NodeUtils()

Method Summary

Modifier and Type	Method and Description
static Criteria	criteriaFromNode(Node node) Creates criteria from a node.
static Criteria	criteriaFromNode(Node node, Comparator rangeComparator) Creates criteria from a node.
static boolean	isEmpty(Node node) Determines if a node is null, or a single parent node without children.
static boolean	isLeaf(Node node) Returns true if a node is a leaf.
static boolean	isRangeLeaf(Leaf leaf) Determines if leaf represents a possible range of values (bounded or unbounded)
static boolean	parentContainsOnlyLeaves(ParentNode parentNode) Determines if parent node has children that are all leaves

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NodeUtils

public NodeUtils()

Method Detail

isLeaf

public static boolean isLeaf(Node node)

Returns true if a node is a leaf. Note that a leaf can also be a parent node that does not have any children.

isEmpty

public static boolean isEmpty(Node node)

Determines if a node is null, or a single parent node without children.

parentContainsOnlyLeaves

public static boolean parentContainsOnlyLeaves(ParentNode parentNode)

Determines if parent node has children that are all leaves

isRangeLeaf

public static boolean isRangeLeaf(Leaf leaf)

Determines if leaf represents a possible range of values (bounded or unbounded)

criteriaFromNode

public static Criteria criteriaFromNode(Node node)

Creates criteria from a node. A default comparator is used which assumes values implement Comparable.

criteriaFromNode

public static Criteria criteriaFromNode(Node node,
                                        Comparator rangeComparator)

Creates criteria from a node. A Comparator is injected into all nodes which need to determine order or equality.