Class Precondition (3.0.21)

Version 3.0.21

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public final class Precondition

Preconditions that can be used to restrict update() calls.

Inheritance

Object > Precondition

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Fields

NONE

public static final Precondition NONE

An empty Precondition that adds no enforcements

Field Value

Type	Description
Precondition

Static Methods

updatedAt(Timestamp updateTime)

public static Precondition updatedAt(Timestamp updateTime)

Creates a Precondition that enforces that the existing document was written at the specified time.

Parameter

Name	Description
updateTime	com.google.cloud.Timestamp The write time to enforce on the existing document.

Returns

Type	Description
Precondition	A new Precondition

Methods

equals(Object obj)

public boolean equals(Object obj)

Returns true if this Precondition is equal to the provided object.

Parameter

Name	Description
obj	Object The object to compare against.

Returns

Type	Description
boolean	Whether this Precondition is equal to the provided object.

Overrides

Object.equals(Object)

hashCode()

public int hashCode()

Returns

Type	Description
int

Overrides

Object.hashCode()