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.

Field Summary

Fields

Modifier and Type	Field and Description
protected IndexKeyTypeSettings	keyTypeSettings Key type settings for this index.

Constructor Summary

Constructors

Constructor and Description
IndexRowCompartorImpl(IndexKeyTypeSettings keyTypeSettings)

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

keyTypeSettings

protected final IndexKeyTypeSettings keyTypeSettings

Key type settings for this index.

Constructor Detail

IndexRowCompartorImpl

public IndexRowCompartorImpl(IndexKeyTypeSettings keyTypeSettings)

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 an index key.

compareKey

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

Compare index keys.

Specified by:

compareKey in interface IndexRowComparator

Parameters:

left - index row.

right - index row.

idx - offset of index key.

Throws:

IgniteCheckedException