Module datarush.library

Package com.pervasive.datarush.tokens.scalar

Class DurationToken

java.lang.Object

com.pervasive.datarush.tokens.scalar.DurationToken

All Implemented Interfaces:

DataToken, DurationValued, ScalarToken, ScalarValued, TokenValued, ScalarTyped, TokenTyped, Serializable, Comparable<DurationToken>

public final class DurationToken
extends Object
implements ScalarToken, Comparable<DurationToken>

An immutable DurationValued object.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static DurationToken	NULL	A null valued DurationToken
static DurationToken	ZERO	A zero valued DurationToken
static Duration	ZERO_VALUE	The duration zero value, 0.

Constructor Summary

Constructors

Constructor	Description
DurationToken(long seconds, int nanos)	Constructs a new token with the given non-null duration value.
DurationToken(DurationValued value)	Constructs a new token with the duration value in the given container.
DurationToken(Duration value)	Constructs a new token with the given non-null duration value.

Method Summary

Modifier and Type	Method	Description
Duration	asDuration()	Gets the contained Duration value as a java.time.Duration.
long	asSeconds()	Get the contained duration value as the number of seconds.
int	compareTo(DurationToken that)
boolean	equals(Object obj)	Indicates whether another object is equal to this token.
ScalarTokenType	getType()	Gets the data type of the token.
int	hashCode()	Returns a hash code for the token.
boolean	isNull()	Indicates whether the token is null valued.
boolean	isZero()	Indicates whether the value is the zero value for the type.
static DurationToken	parse(String value)	Converts a string representation of a Duration value into a token.
int	subsecNanos()	Get the subsecond portion of the contained duration value.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.pervasive.datarush.tokens.DataToken

toString

Methods inherited from interface com.pervasive.datarush.tokens.scalar.ScalarValued

getType, isZero

Methods inherited from interface com.pervasive.datarush.tokens.TokenValued

isNull

Field Detail

NULL

public static final DurationToken NULL

A null valued DurationToken

ZERO_VALUE

public static final Duration ZERO_VALUE

The duration zero value, 0.

ZERO

public static final DurationToken ZERO

A zero valued DurationToken

Constructor Detail

DurationToken

public DurationToken(DurationValued value)

Constructs a new token with the duration value in the given container.

Parameters:

value - a DurationValued containing the desired value

DurationToken

public DurationToken(Duration value)

Constructs a new token with the given non-null duration value. If a null valued token is desired, use NULL.

Parameters:

value - the duration value of the token

DurationToken

public DurationToken(long seconds,
                     int nanos)

Constructs a new token with the given non-null duration value. If a null valued token is desired, use NULL.

Parameters:

seconds - the second portion of the duration

nanos - the subsecond portion of the duration

Method Detail

compareTo

public int compareTo(DurationToken that)

Specified by:

compareTo in interface Comparable<DurationToken>

equals

public boolean equals(Object obj)

Description copied from interface: DataToken

Indicates whether another object is equal to this token. Two null valued tokens are considered equal. This differs from the behavior of TokenComparator.equal(TokenValued,TokenValued) but makes it possible to store DataTokens in Maps.

Specified by:

equals in interface DataToken

Overrides:

equals in class Object

Parameters:

obj - the object to compare

Returns:

true if the other object is a token of the same type and contains the same value, false otherwise.

hashCode

public int hashCode()

Description copied from interface: DataToken

Returns a hash code for the token. This value is guaranteed to be consistent with that returned by TokenConverter.asHashCode(TokenValued).

Specified by:

hashCode in interface DataToken

Overrides:

hashCode in class Object

Returns:

a hash code value for the token

parse

public static DurationToken parse(String value)

Converts a string representation of a Duration value into a token.

Parameters:

value - a string value to interpret as duration; see Duration#parse(String)

Returns:

a token with the specified value

getType

public final ScalarTokenType getType()

Description copied from interface: TokenValued

Gets the data type of the token. This type will dictate the valid values that can be contained.

Specified by:

getType in interface ScalarTyped

Specified by:

getType in interface ScalarValued

Specified by:

getType in interface TokenTyped

Specified by:

getType in interface TokenValued

Returns:

the token type.

asSeconds

public long asSeconds()

Description copied from interface: DurationValued

Get the contained duration value as the number of seconds.

Specified by:

asSeconds in interface DurationValued

Returns:

the contained value as seconds. If null valued, as indicated by TokenValued.isNull(), 0 is returned.

See Also:

DurationValued.subsecNanos()

subsecNanos

public int subsecNanos()

Description copied from interface: DurationValued

Get the subsecond portion of the contained duration value.

Specified by:

subsecNanos in interface DurationValued

Returns:

the subsecond portion of the contained value, in nanoseconds. If null valued, as indicated by TokenValued.isNull(), 0 is returned.

See Also:

DurationValued.asSeconds()

asDuration

public final Duration asDuration()

Description copied from interface: DurationValued

Gets the contained Duration value as a java.time.Duration.

Specified by:

asDuration in interface DurationValued

Returns:

the contained value as a java.time.Duration. If null valued, as indicated by TokenValued.isNull(), null is returned.

isZero

public final boolean isZero()

Description copied from interface: ScalarValued

Indicates whether the value is the zero value for the type. Zero values are not stored in sparse representation formats.

Specified by:

isZero in interface ScalarValued

Returns:

true if the value is the zero value, false otherwise.

toString

public String toString()

Overrides:

toString in class Object

isNull

public final boolean isNull()

Description copied from interface: TokenValued

Indicates whether the token is null valued. Tokens support null values analogous to SQL. Before accessing the value of the container, it is usually best to ensure it is not null valued using this method.

Specified by:

isNull in interface TokenValued

Returns:

true if the token is null valued, false otherwise