com.gafactory.core.rebind.ModelKeyProviderCreator.java Source code

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Here is the source code for com.gafactory.core.rebind.ModelKeyProviderCreator.java

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/**
 * Sencha GXT 3.0.1 - Sencha for GWT
 * Copyright(c) 2007-2012, Sencha, Inc.
 * licensing@sencha.com
 *
 * http://www.sencha.com/products/gxt/license/
 */
package com.gafactory.core.rebind;

import com.google.common.base.Joiner;
import com.google.gwt.core.ext.GeneratorContext;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.core.ext.typeinfo.JMethod;
import com.google.gwt.dev.util.Name;
import com.google.gwt.editor.rebind.model.ModelUtils;
import com.google.gwt.user.rebind.SourceWriter;
import com.gafactory.core.shared.ModelKeyProvider;

/**
 * This can extend the {@link ValueProviderCreator}, as it uses the same basic
 * tools, except there is no value param, and the object type param is the first
 * type param in the generated type.
 * 
 * 
 */
public class ModelKeyProviderCreator extends ValueProviderCreator {
    private final JClassType modelKeyProviderInterface = getContext().getTypeOracle()
            .findType(Name.getSourceNameForClass(ModelKeyProvider.class));

    public ModelKeyProviderCreator(GeneratorContext ctx, TreeLogger l, JMethod method) {
        super(ctx, l, method);
    }

    @Override
    protected JClassType getObjectType() {
        JClassType[] params = ModelUtils.findParameterizationOf(modelKeyProviderInterface, getSupertype());

        return params[0];
    }

    @Override
    protected void create(SourceWriter sw) throws UnableToCompleteException {
        sw.println("public static final %1$s INSTANCE = new %1$s();", getSimpleName());

        // @Override
        sw.println("public String getKey(%1$s item) {", getObjectTypeName());

        // if the value is string, just return a getter for the value
        sw.indentln("return \"\" + %1$s;", getGetterExpression("item"));

        // else toString() it, or String.valueOf() if it is a primitive

        sw.println("}");
    }

    @Override
    protected String getSimpleName() {
        return getObjectType().getName().replace('.', '_') + "_"
                + Joiner.on("_").join(path.toArray(new String[path.size()])) + "_ModelKeyProviderImpl";
    }
}