org.apache.phoenix.util

Class EncodedColumnsUtil

java.lang.Object

org.apache.phoenix.util.EncodedColumnsUtil

public class EncodedColumnsUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
EncodedColumnsUtil()

Method Summary

Modifier and Type	Method and Description
static Expression[]	createColumnExpressionArray(int maxEncodedColumnQualifier)
static byte[]	getColumnQualifierBytes(String columnName, Integer numberBasedQualifier, PTable.QualifierEncodingScheme encodingScheme, boolean isPk)
static byte[]	getColumnQualifierBytes(String columnName, Integer numberBasedQualifier, PTable table, boolean isPk)
static Pair<byte[],byte[]>	getEmptyKeyValueInfo(boolean usesEncodedColumnNames)
static Pair<byte[],byte[]>	getEmptyKeyValueInfo(PTable.QualifierEncodingScheme encodingScheme)
static Pair<byte[],byte[]>	getEmptyKeyValueInfo(PTable table)
static PTable.ImmutableStorageScheme	getImmutableStorageScheme(Scan s)
static Pair<Integer,Integer>	getMinMaxQualifiersFromScan(Scan scan)
static PTable.QualifierEncodingScheme	getQualifierEncodingScheme(Scan s)
static boolean	isPossibleToUseEncodedCQFilter(PTable.QualifierEncodingScheme encodingScheme, PTable.ImmutableStorageScheme storageScheme)
static boolean	isReservedColumnQualifier(int number)
static void	setColumns(PColumn column, PTable table, Scan scan)
static Pair<Integer,Integer>	setQualifiersForColumnsInFamily(PTable table, String cf, NavigableSet<byte[]> qualifierSet)
static boolean	useEncodedQualifierListOptimization(PTable table, Scan scan)
static boolean	useNewValueColumnQualifier(Scan s)
static boolean	useQualifierAsIndex(Pair<Integer,Integer> minMaxQualifiers)
static boolean	usesEncodedColumnNames(PTable.QualifierEncodingScheme encodingScheme)
static boolean	usesEncodedColumnNames(PTable table)

Methods inherited from class java.lang.Object

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

Constructor Detail

EncodedColumnsUtil

public EncodedColumnsUtil()

Method Detail

usesEncodedColumnNames

public static boolean usesEncodedColumnNames(PTable table)

usesEncodedColumnNames

public static boolean usesEncodedColumnNames(PTable.QualifierEncodingScheme encodingScheme)

setColumns

public static void setColumns(PColumn column,
                              PTable table,
                              Scan scan)

useNewValueColumnQualifier

public static final boolean useNewValueColumnQualifier(Scan s)

getQualifierEncodingScheme

public static PTable.QualifierEncodingScheme getQualifierEncodingScheme(Scan s)

getImmutableStorageScheme

public static PTable.ImmutableStorageScheme getImmutableStorageScheme(Scan s)

getEmptyKeyValueInfo

public static Pair<byte[],byte[]> getEmptyKeyValueInfo(PTable table)

Returns:

pair of byte arrays. The first part of the pair is the empty key value's column qualifier, and the second part is the value to use for it.

getEmptyKeyValueInfo

public static Pair<byte[],byte[]> getEmptyKeyValueInfo(boolean usesEncodedColumnNames)

Returns:

pair of byte arrays. The first part of the pair is the empty key value's column qualifier, and the second part is the value to use for it.

getEmptyKeyValueInfo

public static Pair<byte[],byte[]> getEmptyKeyValueInfo(PTable.QualifierEncodingScheme encodingScheme)

Returns:

pair of byte arrays. The first part of the pair is the empty key value's column qualifier, and the second part is the value to use for it.

getMinMaxQualifiersFromScan

public static Pair<Integer,Integer> getMinMaxQualifiersFromScan(Scan scan)

useEncodedQualifierListOptimization

public static boolean useEncodedQualifierListOptimization(PTable table,
                                                          Scan scan)

useQualifierAsIndex

public static boolean useQualifierAsIndex(Pair<Integer,Integer> minMaxQualifiers)

setQualifiersForColumnsInFamily

public static Pair<Integer,Integer> setQualifiersForColumnsInFamily(PTable table,
                                                                    String cf,
                                                                    NavigableSet<byte[]> qualifierSet)
                                                             throws ColumnFamilyNotFoundException

Throws:

ColumnFamilyNotFoundException

getColumnQualifierBytes

public static byte[] getColumnQualifierBytes(String columnName,
                                             Integer numberBasedQualifier,
                                             PTable table,
                                             boolean isPk)

getColumnQualifierBytes

public static byte[] getColumnQualifierBytes(String columnName,
                                             Integer numberBasedQualifier,
                                             PTable.QualifierEncodingScheme encodingScheme,
                                             boolean isPk)

createColumnExpressionArray

public static Expression[] createColumnExpressionArray(int maxEncodedColumnQualifier)

isReservedColumnQualifier

public static boolean isReservedColumnQualifier(int number)

isPossibleToUseEncodedCQFilter

public static boolean isPossibleToUseEncodedCQFilter(PTable.QualifierEncodingScheme encodingScheme,
                                                     PTable.ImmutableStorageScheme storageScheme)