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

Class StringInlineIndexKeyType

java.lang.Object

org.apache.ignite.internal.cache.query.index.sorted.inline.types.NullableInlineIndexKeyType<StringIndexKey>

org.apache.ignite.internal.cache.query.index.sorted.inline.types.StringInlineIndexKeyType

All Implemented Interfaces:

InlineIndexKeyType

public class StringInlineIndexKeyType
extends NullableInlineIndexKeyType<StringIndexKey>

Inline index key implementation for inlining String values.

Field Summary

Fields

Modifier and Type	Field and Description
protected static Charset	CHARSET Default charset.

Fields inherited from class org.apache.ignite.internal.cache.query.index.sorted.inline.types.NullableInlineIndexKeyType

CANT_BE_COMPARE, COMPARE_UNSUPPORTED, keySize

Constructor Summary

Constructors

Constructor and Description
StringInlineIndexKeyType() Constructor.

Method Summary

Modifier and Type	Method and Description
int	compare0(long pageAddr, int off, StringIndexKey key) Compares inlined and given value.
protected @Nullable StringIndexKey	get0(long pageAddr, int off) Restores value from inline.
protected int	inlineSize0(StringIndexKey key) Return inlined size for specified key.
protected int	put0(long pageAddr, int off, StringIndexKey str, int maxSize) Puts given value into inline index tree.
static byte[]	trimUTF8(byte[] bytes, int limit) Convert String to byte[] with size limit, according to UTF-8 encoding.

Methods inherited from class org.apache.ignite.internal.cache.query.index.sorted.inline.types.NullableInlineIndexKeyType

compare, get, inlineSize, inlineSize, inlineSize, put, readBytes, type

Methods inherited from class java.lang.Object

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

Field Detail

CHARSET

protected static final Charset CHARSET

Default charset.

Constructor Detail

StringInlineIndexKeyType

public StringInlineIndexKeyType()

Constructor.

Method Detail

put0

protected int put0(long pageAddr,
                   int off,
                   StringIndexKey str,
                   int maxSize)

Puts given value into inline index tree.

Specified by:

put0 in class NullableInlineIndexKeyType<StringIndexKey>

Parameters:

pageAddr - Page address.

off - Offset.

str - Value.

maxSize - Max size.

Returns:

Amount of bytes actually stored.

get0

@Nullable
protected @Nullable StringIndexKey get0(long pageAddr,
                                                  int off)

Restores value from inline.

Specified by:

get0 in class NullableInlineIndexKeyType<StringIndexKey>

Parameters:

pageAddr - Page address.

off - Offset.

Returns:

Inline value or null if value can't be restored.

compare0

public int compare0(long pageAddr,
                    int off,
                    StringIndexKey key)

Compares inlined and given value.

Specified by:

compare0 in class NullableInlineIndexKeyType<StringIndexKey>

Parameters:

pageAddr - Page address.

off - Offset.

key - Value that should be compare.

Returns:

-1, 0 or 1 if inlined value less, equal or greater than given respectively, NullableInlineIndexKeyType.CANT_BE_COMPARE if inlined part is not enough to compare, or NullableInlineIndexKeyType.COMPARE_UNSUPPORTED if given value can't be compared with inlined part at all.

trimUTF8

public static byte[] trimUTF8(byte[] bytes,
                              int limit)

Convert String to byte[] with size limit, according to UTF-8 encoding.

Parameters:

bytes - byte[].

limit - Size limit.

Returns:

byte[].

inlineSize0

protected int inlineSize0(StringIndexKey key)

Return inlined size for specified key.

Specified by:

inlineSize0 in class NullableInlineIndexKeyType<StringIndexKey>