ValueType (Drill : 1.20.3 API)

java.lang.Object
- java.lang.Enum<ValueType>
- - org.apache.drill.exec.vector.accessor.ValueType

All Implemented Interfaces:

Serializable, Comparable<ValueType>
```
public enum ValueType
extends Enum<ValueType>
```
Represents the primitive types supported to read and write data from value vectors. Vectors support many data widths. For simplicity (and because of no difference in performance), the get/set methods use a reduced set of types. In general, each reader and writer supports just one type. Though some may provide more than one (such as access to bytes for a STRING value.)

Enum Constant Summary

Enum Constants
Enum Constant and Description
`BOOLEAN` The value is set from a boolean: BIT.
`BYTES` The value is set from a byte buffer.
`DATE` The value is set from a Joda LocalDate.
`DECIMAL` The value is set from a BigDecimal: any of Drill's decimal types.
`DOUBLE` Type is set from a double: FLOAT4 and FLOAT8.
`FLOAT` Type is set from a float: FLOAT4.
`INTEGER` The value is set from an integer: TINYINT, SMALLINT, INT, UINT1, and UINT2.
`LONG` The value set from a long: BIGINT and UINT4.
`NULL` The value has no type.
`PERIOD` The value is set from a Period.
`STRING` The value can be set from a string (for convenience).
`TIME` The value is set from a Joda LocalTime.
`TIMESTAMP` The value is set from a Joda Instant.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static ValueType`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static ValueType[]`	`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
  - BOOLEAN
```
public static final ValueType BOOLEAN
```
    The value is set from a boolean: BIT.
  - INTEGER
```
public static final ValueType INTEGER
```
    The value is set from an integer: TINYINT, SMALLINT, INT, UINT1, and UINT2.
  - LONG
```
public static final ValueType LONG
```
    The value set from a long: BIGINT and UINT4.
  - FLOAT
```
public static final ValueType FLOAT
```
    Type is set from a float: FLOAT4.
  - DOUBLE
```
public static final ValueType DOUBLE
```
    Type is set from a double: FLOAT4 and FLOAT8.
  - STRING
```
public static final ValueType STRING
```
    The value can be set from a string (for convenience). VARCHAR and VAR16CHAR.
  - BYTES
```
public static final ValueType BYTES
```
    The value is set from a byte buffer. VARCHAR (in production code), VAR16CHAR, VARBINARY.
  - DECIMAL
```
public static final ValueType DECIMAL
```
    The value is set from a BigDecimal: any of Drill's decimal types.
  - PERIOD
```
public static final ValueType PERIOD
```
    The value is set from a Period. Any of Drill's date/time types. (Note: there is a known bug in which Drill incorrectly differentiates between local date/times (those without a timezone) and absolute date/times (those with a timezone.) Caveat emptor.
  - DATE
```
public static final ValueType DATE
```
    The value is set from a Joda LocalDate. (Should upgrade to Java 8 LocalDate.) Native type is an int.
  - TIME
```
public static final ValueType TIME
```
    The value is set from a Joda LocalTime. (Should upgrade to Java 8 LocalTime.) Native type is an int.
  - TIMESTAMP
```
public static final ValueType TIMESTAMP
```
    The value is set from a Joda Instant. (Should upgrade to Java 8 Instant.) Native type is a long.
  - NULL
```
public static final ValueType NULL
```
    The value has no type. This is typically a dummy writer used for unprojected columns.
- Method Detail
  - values
```
public static ValueType[] 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 (ValueType c : ValueType.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static ValueType 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

Enum ValueType

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

BOOLEAN

INTEGER

LONG

FLOAT

DOUBLE

STRING

BYTES

DECIMAL

PERIOD

DATE

TIME

TIMESTAMP

NULL

Method Detail

values

valueOf