DType (cudfjni 0.14 API)

java.lang.Object
- java.lang.Enum<DType>
- - ai.rapids.cudf.DType

All Implemented Interfaces:

Serializable, Comparable<DType>
```
public enum DType
extends Enum<DType>
```

Enum Constant Summary

Enum Constants
Enum Constant and Description
`BOOL8` Byte wise true non-0/false 0.
`EMPTY`
`FLOAT32`
`FLOAT64`
`INT16`
`INT32`
`INT64`
`INT8`
`STRING`
`TIMESTAMP_DAYS` Days since the UNIX epoch
`TIMESTAMP_MICROSECONDS` microseconds since the UNIX epoch
`TIMESTAMP_MILLISECONDS` ms since the UNIX epoch
`TIMESTAMP_NANOSECONDS` ns since the UNIX epoch
`TIMESTAMP_SECONDS` s since the UNIX epoch

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static DType`	`fromNative(int nativeId)`
`int`	`getNativeId()`
`int`	`getSizeInBytes()` This only works for fixed width types.
`boolean`	`hasTimeResolution()` Returns true for timestamps with time level resolution, as opposed to day level resolution
`boolean`	`isTimestamp()`
`static DType`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static DType[]`	`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
  - EMPTY
```
public static final DType EMPTY
```
  - INT8
```
public static final DType INT8
```
  - INT16
```
public static final DType INT16
```
  - INT32
```
public static final DType INT32
```
  - INT64
```
public static final DType INT64
```
  - FLOAT32
```
public static final DType FLOAT32
```
  - FLOAT64
```
public static final DType FLOAT64
```
  - BOOL8
```
public static final DType BOOL8
```
    Byte wise true non-0/false 0. In general true will be 1.
  - TIMESTAMP_DAYS
```
public static final DType TIMESTAMP_DAYS
```
    Days since the UNIX epoch
  - TIMESTAMP_SECONDS
```
public static final DType TIMESTAMP_SECONDS
```
    s since the UNIX epoch
  - TIMESTAMP_MILLISECONDS
```
public static final DType TIMESTAMP_MILLISECONDS
```
    ms since the UNIX epoch
  - TIMESTAMP_MICROSECONDS
```
public static final DType TIMESTAMP_MICROSECONDS
```
    microseconds since the UNIX epoch
  - TIMESTAMP_NANOSECONDS
```
public static final DType TIMESTAMP_NANOSECONDS
```
    ns since the UNIX epoch
  - STRING
```
public static final DType STRING
```
- Method Detail
  - values
```
public static DType[] 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 (DType c : DType.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static DType 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
  - isTimestamp
```
public boolean isTimestamp()
```
  - hasTimeResolution
```
public boolean hasTimeResolution()
```
    Returns true for timestamps with time level resolution, as opposed to day level resolution
  - getNativeId
```
public int getNativeId()
```
  - getSizeInBytes
```
public int getSizeInBytes()
```
    This only works for fixed width types. Variable width types like strings the value is undefined and should be ignored.
    
    Returns:
  - fromNative
```
public static DType fromNative(int nativeId)
```

Enum DType

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

EMPTY

INT8

INT16

INT32

INT64

FLOAT32

FLOAT64

BOOL8

TIMESTAMP_DAYS

TIMESTAMP_SECONDS

TIMESTAMP_MILLISECONDS

TIMESTAMP_MICROSECONDS

TIMESTAMP_NANOSECONDS

STRING

Method Detail

values

valueOf

isTimestamp

hasTimeResolution

getNativeId

getSizeInBytes

fromNative