Send feedback
Class ReadOption (2.18.5)
Stay organized with collections
Save and categorize content based on your preferences.
Version 2.18.5 keyboard_arrow_down
public abstract class ReadOption implements Serializable
Specifies options for read operations in Datastore, namely getting/fetching entities and running
queries.
Static Methods
eventualConsistency()
public static ReadOption . EventualConsistency eventualConsistency ()
Returns a ReadOption
that specifies eventual consistency, allowing Datastore to return
stale results from gets, fetches, and ancestor queries.
readTime(Timestamp time)
public static ReadOption . ReadTime readTime ( Timestamp time )
Returns a ReadOption
that specifies read time, allowing Datastore to return results
from lookups and queries at a particular timestamp. This feature is currently in private
preview.
Parameter Name Description time
com.google.cloud.Timestamp
transactionId(ByteString transactionId)
public static ReadOption transactionId ( ByteString transactionId )
Returns a ReadOption
that specifies transaction id, allowing Datastore to execute a
Query in this transaction.
transactionId(String transactionId)
public static ReadOption transactionId ( String transactionId )
Returns a ReadOption
that specifies transaction id, allowing Datastore to execute a
Query in this transaction.
Parameter Name Description transactionId
String
Send feedback
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License , and code samples are licensed under the Apache 2.0 License . For details, see the Google Developers Site Policies . Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-09-19 UTC.
[{
"type": "thumb-down",
"id": "hardToUnderstand",
"label":"Hard to understand"
},{
"type": "thumb-down",
"id": "incorrectInformationOrSampleCode",
"label":"Incorrect information or sample code"
},{
"type": "thumb-down",
"id": "missingTheInformationSamplesINeed",
"label":"Missing the information/samples I need"
},{
"type": "thumb-down",
"id": "otherDown",
"label":"Other"
}]
[{
"type": "thumb-up",
"id": "easyToUnderstand",
"label":"Easy to understand"
},{
"type": "thumb-up",
"id": "solvedMyProblem",
"label":"Solved my problem"
},{
"type": "thumb-up",
"id": "otherUp",
"label":"Other"
}]
Need to tell us more?
{"lastModified": "Last updated 2024-09-19 UTC."}
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-09-19 UTC."]]