org.apache.accumulo.core.security

Class ColumnVisibility.NodeComparator

java.lang.Object

org.apache.accumulo.core.security.ColumnVisibility.NodeComparator

All Implemented Interfaces:

Serializable, Comparator<ColumnVisibility.Node>

Enclosing class:

ColumnVisibility

public static class ColumnVisibility.NodeComparator
extends Object
implements Comparator<ColumnVisibility.Node>, Serializable

A node comparator. Nodes sort according to node type, terms sort lexicographically. AND and OR nodes sort by number of children, or if the same by corresponding children.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NodeComparator(byte[] text) Creates a new comparator.

Method Summary

Modifier and Type	Method and Description
int	compare(ColumnVisibility.Node a, ColumnVisibility.Node b)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

NodeComparator

public NodeComparator(byte[] text)

Creates a new comparator.

Parameters:

text - expression string, encoded in UTF-8

Method Detail

compare

public int compare(ColumnVisibility.Node a,
                   ColumnVisibility.Node b)

Specified by:

compare in interface Comparator<ColumnVisibility.Node>