Package org.apache.iotdb.db.wal.buffer

Enum WALEntryType

java.lang.Object

java.lang.Enum<WALEntryType>

org.apache.iotdb.db.wal.buffer.WALEntryType

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<WALEntryType>

public enum WALEntryType
extends java.lang.Enum<WALEntryType>

Type of WALEntry, including info type and signal type

Enum Constant Summary

Enum Constants

Enum Constant	Description
CLOSE_SIGNAL	signal wal buffer has been closed
DELETE_DATA_NODE	DeleteDataNode
DELETE_PLAN	DeletePlan
INSERT_ROW_NODE	InsertRowNode
INSERT_ROW_PLAN	InsertRowPlan
INSERT_TABLET_NODE	InsertTabletNode
INSERT_TABLET_PLAN	InsertTabletPlan
MEMORY_TABLE_SNAPSHOT	snapshot of IMemTable
ROLL_WAL_LOG_WRITER_SIGNAL	signal wal buffer to roll wal log writer
WAL_FILE_INFO_END_MARKER	mark the wal file info part ends

Method Summary

Modifier and Type	Method	Description
byte	getCode()
boolean	needSearch()	Returns true when this type should be searched
static WALEntryType	valueOf(byte code)	Returns the enum constant of this type with the specified name.
static WALEntryType	valueOf(java.lang.String name)	Returns the enum constant of this type with the specified name.
static WALEntryType[]	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

INSERT_ROW_PLAN

public static final WALEntryType INSERT_ROW_PLAN

InsertRowPlan

INSERT_TABLET_PLAN

public static final WALEntryType INSERT_TABLET_PLAN

InsertTabletPlan

DELETE_PLAN

public static final WALEntryType DELETE_PLAN

DeletePlan

MEMORY_TABLE_SNAPSHOT

public static final WALEntryType MEMORY_TABLE_SNAPSHOT

snapshot of IMemTable

INSERT_ROW_NODE

public static final WALEntryType INSERT_ROW_NODE

InsertRowNode

INSERT_TABLET_NODE

public static final WALEntryType INSERT_TABLET_NODE

InsertTabletNode

DELETE_DATA_NODE

public static final WALEntryType DELETE_DATA_NODE

DeleteDataNode

CLOSE_SIGNAL

public static final WALEntryType CLOSE_SIGNAL

signal wal buffer has been closed

ROLL_WAL_LOG_WRITER_SIGNAL

public static final WALEntryType ROLL_WAL_LOG_WRITER_SIGNAL

signal wal buffer to roll wal log writer

WAL_FILE_INFO_END_MARKER

public static final WALEntryType WAL_FILE_INFO_END_MARKER

mark the wal file info part ends

Method Detail

values

public static WALEntryType[] 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 (WALEntryType c : WALEntryType.values())
    System.out.println(c);

Returns:

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

valueOf

public static WALEntryType valueOf(java.lang.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:

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

java.lang.NullPointerException - if the argument is null

getCode

public byte getCode()

needSearch

public boolean needSearch()

Returns true when this type should be searched

valueOf

public static WALEntryType valueOf(byte code)

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:

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

Returns:

the enum constant with the specified name

Throws:

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

java.lang.NullPointerException - if the argument is null