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cf logs AppName

cf logs AppName --recent Note, depending on who is hosting your CF app, the size of this log may be limited.

CF keeps you logged in. I sometimes have to switch between regions and don't always know where I am #Where am I? cf target #Login. This is logging in to the UK region of bluemix. Replace eu-gb with ng to go to the US. cf login -a https://api.eu-gb.bluemix.net #List spaces cf spaces #C...

This is the simplest way to connect. First, the driver has to be registered with java.sql.DriverManager so that it knows which class to use. This is done by loading the driver class, typically with java.lang.Class.forname(<driver class name>). /** * Connect to a PostgreSQL database. *...

Instead of specifying connection parameters like user and password (see a complete list here) in the URL or a separate parameters, you can pack them into a java.util.Properties object: /** * Connect to a PostgreSQL database. * @param url the JDBC URL to connect to. Must start with "jdbc:...

It is common to use javax.sql.DataSource with JNDI in application server containers, where you register a data source under a name and look it up whenever you need a connection. This is code that demonstrates how data sources work: /** * Create a data source with connection pool for PostgreSQL c...

You can install Solr in any system where a suitable Java Runtime Environment (JRE) is available, as detailed below. Currently this includes Linux, OS X, and Microsoft Windows. You will need the Java Runtime Environment (JRE) version 1.8 or higher. At a command line, check your Java version like thi...

Implement Dispose() method (and declare the containing class as IDisposable) as a means to ensure any memory-heavy resources are freed as soon as the object is no longer used. The "catch" is that there is no strong guarantee the the Dispose() method would ever be invoked (unlike finalizers...

As Dispose() and finalizers are aimed to different purposes, a class managing external memory-heavy resources should implement both of them. The consequence is writing the class so that it handles well two possible scenarios: When only the finalizer is invoked When Dispose() is invoked first and...

The common case for injecting dependencies into a class is with constructor injection. This involves annotating a constructor on the class with @Inject. The CDI manager will look for a constructor with the @Inject annotation when creating an instance of the class. When it finds an @Inject-annotated ...

The same example from above can also be done using what is known as field injection. Instead of annotating the constructor with @Inject, we annotate the fields we wish to have injected public class Spaceship { @Inject private PropulsionSystem propulsionSystem; @Inject private ...

Example of how to calculate the output shape and overcome the difficulties of using tf.nn.conv2d_transpose with unknown batch size (when input.get_shape() is (?, H, W, C) or (?, C, H, W)). def upconvolution (input, output_channel_size, filter_size_h, filter_size_w, stride_h, str...

The following code, inserted in your wp-config.php file, will log all errors, notices, and warnings to a file called debug.log in the wp-content directory. It will also hide the errors so they do not interrupt page generation. // Enable WP_DEBUG mode define( 'WP_DEBUG', true ); // Enable Debug...

Add the rx-android dependency as well as a current version of rx-java to the build.gradle. Because RxAndroid releases are few and far between, it is recommended you also explicitly depend on RxJava's latest version for bug fixes and new features. Rx1 compile 'io.reactivex:rxandroid:1.2.1' co...

Once you have installed Visual Studio from https://www.visualstudio.com/downloads/, start a new project. Select 'Windows Forms Application' from Visual Basic Tab. You can rename it here if you need to. Once you click 'OK', you will see this window: Click on the 'Toolbo...

Bridge Mode $ docker run –d –-name my_app -p 10000:80 image_name Note that we did not have to specify --net=bridge because this is the default working mode for docker. This allows to run multiple containers to run on same host without any assignment of dynamic port. So BRIDGE mode avoids the por...

Required package structure XML activity_login <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center_vertical" android...

In C, pointers can be cast to a void*, which needs an explicit cast in C++. The following is illegal in C++, but legal in C: void* ptr; int* intptr = ptr; Adding an explicit cast makes this work, but can cause further issues.

Detailed instructions on getting DotNetNuke set up or installed.

Detailed instructions on getting sharedpreferences set up or installed.