SnappyDB | A key-value database for Android | Database library
kandi X-RAY | SnappyDB Summary
kandi X-RAY | SnappyDB Summary
SnappyDB is a key-value database for Android it’s an alternative for SQLite if you want to use a NoSQL approach. It allows you to store and get primitive types, but also a Serializable object or array in a type-safe way. SnappyDB can outperform SQLite in read/write operations. ![benchmark] SnappyDB is based on [leveldb] and use [snappy compression] algorithm, on redundant content you could achieve a good compression ratio. Check out the Demo App
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of SnappyDB
SnappyDB Key Features
SnappyDB Examples and Code Snippets
Community Discussions
Trending Discussions on SnappyDB
QUESTION
for (String[] batch : snappyDB.allKeysIterator().byBatch(0))
...ANSWER
Answered 2020-Apr-14 at 12:18Without using byBatch
you will only have a KeyIterator
which does not implement Iterator
or Iterable
so you can't use it in a loop.
byBatch(n)
creates a BatchIterable
which is Iterable
and an Iterator
. It basically just calls next(n)
on the KeyIterator
when you call next()
on it. (Source)
KeyIterator#next(int max)
seems to always attempt to fetch max
elements from the Database. So I presume you will most likely have max
elements in the batch
array from your example on each iteration. So it doesn't make much sense to pass 0
as you're doing (not sure if that even works).
Also just reading the README from the GitHub repo reveals some documentation:
QUESTION
I know this type of question has been asked before, but my problem was not solved with those answers. Today I added a new version of PayU Money into my app and suddenly it shows an error. I have converted the whole project into androidx, the same error comes.
Manifest merger failed : Attribute application@appComponentFactory value=(androidx.core.app.CoreComponentFactory) from [androidx.core:core:1.0.0] AndroidManifest.xml:22:18-86 is also present at [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91 value=(android.support.v4.app.CoreComponentFactory). Suggestion: add 'tools:replace="android:appComponentFactory"' to element at AndroidManifest.xml:31:5-163:19 to override.
If I added this tools:replace="android:appComponentFactory inside Manifest file it show new error
Manifest merger failed with multiple errors, see logs
On checking Manifest Merger it shows
Merging Errors: Error: tools:replace specified at line:31 for attribute android:appComponentFactory, but no new value specified app main manifest (this file), line 30 Error: Validation failed, exiting app main manifest (this file)
I can not figure out the error. Here is build.gradle(app)
...ANSWER
Answered 2019-Sep-26 at 11:13add this 2 lines inside your tag of your manifest
QUESTION
when I updated my dependencies in Android Studio 3.3.1, I receive this error: Android Studio Version: 3.3.1 Gradle Version: 5.4
...ANSWER
Answered 2019-Apr-28 at 13:32this form of problem is about duplicated classes in dependencies and to solve it, just put this piece of code in build.gradle:
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