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Add-on module for Jackson (http://jackson.codehaus.org) to support Scala (http://www.scala-lang.org/) data types.

There is a newer version: 1.9.3

package com.fasterxml.jackson.module.scala;

import com.fasterxml.jackson.module.scala.deser.ScalaDeserializers;
import com.fasterxml.jackson.module.scala.ser.ScalaSerializers;
import org.codehaus.jackson.map.Module;

public class ScalaModule extends DefaultScalaModule
{
    private final String NAME = "ScalaModule";

    /**
     * Enumeration that defines all togglable features this module -- none yet
     */
    public enum Feature {
        BOGUS(false) // placeholder
        ;

        final boolean _defaultState;
        final int _mask;
        
        // Method that calculates bit set (flags) of all features enabled by default
        public static int collectDefaults()
        {
            int flags = 0;
            for (Feature f : values()) {
                if (f.enabledByDefault()) {
                    flags |= f.getMask();
                }
            }
            return flags;
        }
        
        private Feature(boolean defaultState) {
            _defaultState = defaultState;
            _mask = (1 << ordinal());
        }
        
        public boolean enabledByDefault() { return _defaultState; }
        public int getMask() { return _mask; }
    }

    protected final static int DEFAULT_FEATURES = Feature.collectDefaults();
    
    /**
     * Bit flag composed of bits that indicate which {@link Feature}s are enabled.
     */
    protected int _moduleFeatures = DEFAULT_FEATURES;
    
    /*
    /**********************************************************
    /* Life-cycle
    /**********************************************************
     */
    
    public ScalaModule() { }

    @Override public String getModuleName() { return NAME; }

    @Override
    public void setupModule(Module.SetupContext context)
    {
        super.setupModule(context);
        context.addDeserializers(new ScalaDeserializers());
        context.addSerializers(new ScalaSerializers());
    }

    /*
    /**********************************************************
    /* Extended API, configuration
    /**********************************************************
     */

    public ScalaModule enable(Feature f) {
        _moduleFeatures |= f.getMask();
        return this;
    }

    public ScalaModule disable(Feature f) {
        _moduleFeatures &= ~f.getMask();
        return this;
    }

    public final boolean isEnabled(Feature f) {
        return (_moduleFeatures & f.getMask()) != 0;
    }

    public ScalaModule configure(Feature f, boolean state) {
        if (state) {
            enable(f);
        } else {
            disable(f);
        }
        return this;
    }
}