org.apache.ignite.internal.cache.query.index.sorted

Class IndexRowCompartorImpl

java.lang.Object

org.apache.ignite.internal.cache.query.index.sorted.IndexRowCompartorImpl

All Implemented Interfaces:

IndexRowComparator

public class IndexRowCompartorImpl
extends Object
implements IndexRowComparator

Provide default logic of rows comparison. Consider: 1. NULL is the least value. 2. Comparison of different types is not supported.

Constructor Summary

Constructors

Constructor and Description
IndexRowCompartorImpl()

Method Summary

Modifier and Type	Method and Description
int	compareKey(IndexKey left, IndexKey right) Compare index keys.
int	compareKey(long pageAddr, int off, int maxSize, IndexKey key, int curType) Compare index keys.
int	compareRow(IndexRow left, IndexRow right, int idx) Compare index rows by key specified with idx.

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexRowCompartorImpl

public IndexRowCompartorImpl()

Method Detail

compareKey

public int compareKey(long pageAddr,
                      int off,
                      int maxSize,
                      IndexKey key,
                      int curType)

Compare index keys.

Specified by:

compareKey in interface IndexRowComparator

Parameters:

pageAddr - address of an index row.

off - offset of an index key.

maxSize - max size to read.

key - key to compare with.

curType - type of index key.

compareRow

public int compareRow(IndexRow left,
                      IndexRow right,
                      int idx)
               throws IgniteCheckedException

Compare index rows by key specified with idx.

Specified by:

compareRow in interface IndexRowComparator

Parameters:

left - index row.

right - index row.

idx - offset of index key.

Throws:

IgniteCheckedException

compareKey

public int compareKey(IndexKey left,
                      IndexKey right)
               throws IgniteCheckedException

Compare index keys.

Specified by:

compareKey in interface IndexRowComparator

Parameters:

left - index key.

right - index key.

Throws:

IgniteCheckedException