Class TimeSource.SystemTimeSource
- All Implemented Interfaces:
Serializable
- Enclosing class:
TimeSource
System.currentTimeMillis()
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Nested Class Summary
Nested classes/interfaces inherited from class javax.time.TimeSource
TimeSource.FixedTimeSource, TimeSource.OffsetSystemTimeSource, TimeSource.SystemTimeSource
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Field Summary
FieldsModifier and TypeFieldDescription(package private) static final TimeSource.SystemTimeSource
Singleton instance.private static final long
A serialization identifier for this class. -
Constructor Summary
Constructors -
Method Summary
Methods inherited from class javax.time.TimeSource
fixed, offsetSystem, system, taiInstant, utcInstant
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Field Details
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INSTANCE
Singleton instance. -
serialVersionUID
private static final long serialVersionUIDA serialization identifier for this class.- See Also:
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Constructor Details
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SystemTimeSource
private SystemTimeSource()Restricted constructor.
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Method Details
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readResolve
Resolve singletons. -
instant
Gets the currentInstant
.The instant returned by this method will vary according to the implementation. For example, the time-source returned by
TimeSource.system()
will return an instant based onSystem.currentTimeMillis()
.Normally, this method will not throw an exception. However, one possible implementation would be to obtain the time from a central time server across the network. Obviously, in this case the lookup could fail, and so the method is permitted to throw an exception.
- Specified by:
instant
in classTimeSource
- Returns:
- the current
Instant
from this time-source, never null
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millis
public long millis()Gets the current millisecond instant.The instant returned by this method will vary according to the implementation. For example, the time-source returned by
TimeSource.system()
will returnSystem.currentTimeMillis()
.This method is provided for backwards compatibility. New code should use classes such as
Instant
to represent an instant rather than a raw millisecond value.Normally, this method will not throw an exception. However, one possible implementation would be to obtain the time from a central time server across the network. Obviously, in this case the lookup could fail, and so the method is permitted to throw an exception.
- Overrides:
millis
in classTimeSource
- Returns:
- the current millisecond instant from this time-source, measured from the Java epoch of 1970-01-01T00:00 UTC, never null
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toString
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