Package org.apache.iotdb.tsfile.read.common.block.column

Enum ColumnEncoding

java.lang.Object

java.lang.Enum<ColumnEncoding>

org.apache.iotdb.tsfile.read.common.block.column.ColumnEncoding

All Implemented Interfaces:

Serializable, Comparable<ColumnEncoding>

public enum ColumnEncoding
extends Enum<ColumnEncoding>

Enum Constant Summary

Enum Constants

Enum Constant	Description
BINARY_ARRAY	TEXT.
BYTE_ARRAY	BOOLEAN.
INT32_ARRAY	INT32, FLOAT
INT64_ARRAY	INT64, DOUBLE.
RLE	All data types.

Method Summary

Modifier and Type	Method	Description
static ColumnEncoding	deserializeFrom(ByteBuffer buffer)
void	serializeTo(DataOutputStream stream)
static ColumnEncoding	valueOf(String name)	Returns the enum constant of this type with the specified name.
static ColumnEncoding[]	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

BYTE_ARRAY

public static final ColumnEncoding BYTE_ARRAY

BOOLEAN.

INT32_ARRAY

public static final ColumnEncoding INT32_ARRAY

INT32, FLOAT

INT64_ARRAY

public static final ColumnEncoding INT64_ARRAY

INT64, DOUBLE.

BINARY_ARRAY

public static final ColumnEncoding BINARY_ARRAY

TEXT.

RLE

public static final ColumnEncoding RLE

All data types.

Method Detail

values

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

Returns:

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

valueOf

public static ColumnEncoding 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

deserializeFrom

public static ColumnEncoding deserializeFrom(ByteBuffer buffer)

serializeTo

public void serializeTo(DataOutputStream stream)
                 throws IOException

Throws:

IOException