Class Precondition (3.45.0)

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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()