Externalsortinginjava

External-Memory Sorting in Java: useful to sort very large files.

Code sample

                import com.google.code.externalsorting.ExternalSort;
                
                //...

                List<File> l = ExternalSort.sortInBatch(new File(inputfile));
                ExternalSort.mergeSortedFiles(l, new File(outputfile));

API Documentation

http://www.javadoc.io/doc/com.google.code.externalsortinginjava/externalsortinginjava/

Maven dependency

You can download the jar files from the Maven central repository: http://repo1.maven.org/maven2/com/google/code/externalsortinginjava/externalsortinginjava/

You can also specify the dependency in the Maven "pom.xml" file:

    <dependencies>
         <dependency>
	     <groupId>com.google.code.externalsortinginjava</groupId>
	     <artifactId>externalsortinginjava</artifactId>
	     <version>[0.1.9,)</version>
         </dependency>
     </dependencies>

How to build

• get the java jdk
• Install Maven 2
• mvn install - builds jar (requires signing)
• mvn test - runs tests