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Spring Cache @Cacheable - not working while calling from another method of the same bean

...in the same class will not get the cached value. From https://code.google.com/p/ehcache-spring-annotations/wiki/UsingCacheable Only external method calls coming in through the proxy are intercepted. This means that self-invocation, in effect, a method within the target object calling anothe...
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Changing API level Android Studio

...radle(Project: yourproject). An example of build.gradle: apply plugin: 'com.android.application' android { compileSdkVersion 28 buildToolsVersion "28.0.2" defaultConfig { applicationId "com.stackoverflow.answer" minSdkVersion 21 targetSdkVersion 28 ve...
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'const string' vs. 'static readonly string' in C#

... When you use a const string, the compiler embeds the string's value at compile-time. Therefore, if you use a const value in a different assembly, then update the original assembly and change the value, the other assembly won't see the change until you re-com...
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How to create a new database using SQLAlchemy?

...amed postgres to use the postgres role, so the simplest thing is to just become that user. At any rate, create an engine as usual with a user that has the permissions to create a database: >>> engine = sqlalchemy.create_engine("postgres://postgres@/postgres") You cannot use engine.execu...
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When to use pip requirements file versus install_requires in setup.py?

... what you know does work, and may include optional dependencies that you recommend. For example you might use SQLAlchemy but suggest MySQL, and so put MySQLdb in the requirements file). So, in summary: install_requires is to keep people away from things that you know don't work, while requirements...
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classical inheritance vs prototypal inheritance in javascript

...n as abstraction. Abstraction: The representation of real world things in computer programs. Theoretically an abstraction is defined as "a general concept formed by extracting common features from specific examples". However for the sake of this explanation we're going to use the aforementioned de...
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Rotated elements in CSS that affect their parent's height correctly

... ... and then use the following CSS, to rotate anti-clockwise (or see the commented out transform for a way to change it into a clockwise rotation): .rotation-wrapper-outer { display: table; } .rotation-wrapper-inner { padding: 50% 0; height: 0; } .element-to-rotate { display: block; tra...
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Automatically enter SSH password with script

...-p "YOUR_PASSWORD" ssh -o StrictHostKeyChecking=no YOUR_USERNAME@SOME_SITE.COM Custom port example: sshpass -p "YOUR_PASSWORD" ssh -o StrictHostKeyChecking=no YOUR_USERNAME@SOME_SITE.COM:2400 Notes: sshpass can also read a password from a file when the -f flag is passed. Using -f prevents t...
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Firebase Storage How to store and Retrieve images [closed]

...images and other non-JSON data to a dedicated storage service. We highly recommend that you use this for storing images, instead of storing them as base64 encoded data in the JSON database. You certainly can! Depending on how big your images are, you have a couple options: 1. For smaller images (u...
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How to handle the modal closing event in Twitter Bootstrap?

... has finished being hidden from the user (will wait for CSS transitions to complete). And provide an example on how to use them: $('#myModal').on('hidden.bs.modal', function () { // do something… }) Legacy Bootstrap 2.3.2 answer Bootstrap's documentation refers two events you can use. ...