com.bigdata.btree

Class RangeCheckUtil

java.lang.Object

com.bigdata.btree.RangeCheckUtil

public class RangeCheckUtil
extends Object

Utility class to verify that a key lies within a key range.

Note: In order to be a useful check on the mapping of predicates across shards, the check needs to verify that the as-bound predicate either lies within or spans the shard, i.e., that the interaction of the as-bound predicate and the shard is not empty.

Version:

$Id$

Author:

Bryan Thompson

See Also:

KeyAfterPartitionException

Constructor Summary

Constructors

Constructor and Description
RangeCheckUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	rangeCheck(ISeparatorKeys pmd, byte[] key, boolean allowUpperBound) Verify that the key lies within the key range of an index partition.

Methods inherited from class java.lang.Object

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

Constructor Detail

RangeCheckUtil

public RangeCheckUtil()

Method Detail

rangeCheck

public static boolean rangeCheck(ISeparatorKeys pmd,
                 byte[] key,
                 boolean allowUpperBound)

Verify that the key lies within the key range of an index partition.

Parameters:

key - The key.

allowUpperBound - true iff the key represents an inclusive upper bound and thus must be allowed to be LTE to the right separator key for the index partition. For example, this would be true for the toKey parameter on rangeCount or rangeIterator methods.

Returns:

true always.

Throws:

IllegalArgumentException - if the key is null

KeyOutOfRangeException - if the key does not lie within the index partition.

See Also:

BytesUtil.rangeCheck(byte[], byte[], byte[])