org.apache.hadoop.hbase.regionserver

Enum ScanQueryMatcher.MatchCode

java.lang.Object

java.lang.Enum<ScanQueryMatcher.MatchCode>

org.apache.hadoop.hbase.regionserver.ScanQueryMatcher.MatchCode

All Implemented Interfaces:

Serializable, Comparable<ScanQueryMatcher.MatchCode>

Enclosing class:

ScanQueryMatcher

public static enum ScanQueryMatcher.MatchCode
extends Enum<ScanQueryMatcher.MatchCode>

ScanQueryMatcher.match(org.apache.hadoop.hbase.Cell) return codes. These instruct the scanner moving through memstores and StoreFiles what to do with the current KeyValue.

Additionally, this contains "early-out" language to tell the scanner to move on to the next File (memstore or Storefile), or to return immediately.

Enum Constant Summary

Enum Constants

Enum Constant and Description
DONE Do not include, return current result
DONE_SCAN Done with scan, thanks to the row filter.
INCLUDE Include KeyValue in the returned result
INCLUDE_AND_SEEK_NEXT_COL Include KeyValue and done with column, seek to next.
INCLUDE_AND_SEEK_NEXT_ROW Include KeyValue and done with row, seek to next.
NEXT Do not include, jump to next StoreFile or memstore (in time order)
SEEK_NEXT_COL Done with column, seek to next.
SEEK_NEXT_ROW Done with the row, seek there.
SEEK_NEXT_USING_HINT
SKIP Do not include KeyValue in the returned result

Method Summary

Methods

Modifier and Type	Method and Description
static ScanQueryMatcher.MatchCode	valueOf(String name) Returns the enum constant of this type with the specified name.
static ScanQueryMatcher.MatchCode[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INCLUDE

public static final ScanQueryMatcher.MatchCode INCLUDE

Include KeyValue in the returned result

SKIP

public static final ScanQueryMatcher.MatchCode SKIP

Do not include KeyValue in the returned result

NEXT

public static final ScanQueryMatcher.MatchCode NEXT

Do not include, jump to next StoreFile or memstore (in time order)

DONE

public static final ScanQueryMatcher.MatchCode DONE

Do not include, return current result

SEEK_NEXT_ROW

public static final ScanQueryMatcher.MatchCode SEEK_NEXT_ROW

Done with the row, seek there.

SEEK_NEXT_COL

public static final ScanQueryMatcher.MatchCode SEEK_NEXT_COL

Done with column, seek to next.

DONE_SCAN

public static final ScanQueryMatcher.MatchCode DONE_SCAN

Done with scan, thanks to the row filter.

SEEK_NEXT_USING_HINT

public static final ScanQueryMatcher.MatchCode SEEK_NEXT_USING_HINT

INCLUDE_AND_SEEK_NEXT_COL

public static final ScanQueryMatcher.MatchCode INCLUDE_AND_SEEK_NEXT_COL

Include KeyValue and done with column, seek to next.

INCLUDE_AND_SEEK_NEXT_ROW

public static final ScanQueryMatcher.MatchCode INCLUDE_AND_SEEK_NEXT_ROW

Include KeyValue and done with row, seek to next.

Method Detail

values

public static ScanQueryMatcher.MatchCode[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ScanQueryMatcher.MatchCode c : ScanQueryMatcher.MatchCode.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ScanQueryMatcher.MatchCode valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null