Examples of net.sf.cglib.util.ParallelSorter$Generator

org.eclipse.xpand2.Generator

For the efficient sorting of multiple arrays in parallel.

Given two arrays of equal length and varying types, the standard technique for sorting them in parallel is to create a new temporary object for each row, store the objects in a temporary array, sort the array using a custom comparator, and the extract the original values back into their respective arrays. This is wasteful in both time and memory.

This class generates bytecode customized to the particular set of arrays you need to sort, in such a way that both arrays are sorted in-place, simultaneously.

Two sorting algorithms are provided. Quicksort is best when you only need to sort by a single column, as it requires very few comparisons and swaps. Mergesort is best used when sorting multiple columns, as it is a "stable" sort--that is, it does not affect the relative order of equal objects from previous sorts.

The mergesort algorithm here is an "in-place" variant, which while slower, does not require a temporary array. @author Chris Nokleberg

        cleaner.addExclude("gen.properties");


        /*
         * Create Database Generator
         */
        Generator databaseGen = new Generator();
        databaseGen.setExpand(EXPAND_DATABASE);
        databaseGen.setFileEncoding(config.getFileEncoding());
        databaseGen.addMetaModel(emfMetaModel);
        databaseGen.addOutlet(javaOutlet);
        databaseGen.setPrDefaultExcludes(true);
        databaseGen.setPrSrcPaths(config.getGenPath());


        /*
         * Create Content Provider Generator
         */
        Generator contentProviderGen = new Generator();
        contentProviderGen.setExpand(EXPAND_CONTENT_PROVIDER);
        contentProviderGen.setFileEncoding(config.getFileEncoding());
        contentProviderGen.addMetaModel(emfMetaModel);
        contentProviderGen.addOutlet(javaOutlet);


        /*
         * Create Model Generator
         */
        Generator modelGen = new Generator();
        modelGen.setExpand(EXPAND_MODEL);
        modelGen.setFileEncoding(config.getFileEncoding());
        modelGen.addMetaModel(emfMetaModel);
        modelGen.addOutlet(javaOutlet);


        /*
         * Create Code Snippet Generator
         */
        Generator snippetGen = new Generator();
        snippetGen.setExpand(EXPAND_CODE_SNIPPET);
        snippetGen.setFileEncoding(config.getFileEncoding());
        snippetGen.addMetaModel(emfMetaModel);
        snippetGen.addOutlet(propertiesOutlet);


        /*
         * Execute Reader and Generators
         */
        reader.invoke(ctx, monitor, issues);
        cleaner.invoke(ctx, monitor, issues);
        databaseGen.invoke(ctx, monitor, issues);
        contentProviderGen.invoke(ctx, monitor, issues);
        modelGen.invoke(ctx, monitor, issues);
        snippetGen.invoke(ctx, monitor, issues);
    }

Examples of net.sf.cglib.util.ParallelSorter$Generator

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