AbstractGenerifiable.java

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package org.mule.devkit.model.code;

import java.util.ArrayList;
import java.util.List;

/**
 * Implementation of {@link Generifiable}.
 *
 * @author Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
 */
abstract class AbstractGenerifiable implements Generifiable, Declaration {

    /**
     * Lazily created list of {@link TypeVariable}s.
     */
    private List<TypeVariable> typeVariables = null;

    protected abstract CodeModel owner();

    public void declare(Formatter f) {
        if (typeVariables != null) {
            f.p('<');
            for (int i = 0; i < typeVariables.size(); i++) {
                if (i != 0) {
                    f.p(',');
                }
                f.d(typeVariables.get(i));
            }
            f.p('>');
        }
    }


    public TypeVariable generify(String name) {
        TypeVariable v = new TypeVariable(owner(), name);
        if (typeVariables == null) {
            typeVariables = new ArrayList<TypeVariable>(3);
        }
        typeVariables.add(v);
        return v;
    }

    public TypeVariable generify(String name, Class<?> bound) {
        return generify(name, owner().ref(bound));
    }

    public TypeVariable generify(String name, TypeReference bound) {
        return generify(name).bound(bound);
    }

    public TypeVariable[] typeParams() {
        if (typeVariables == null) {
            return TypeVariable.EMPTY_ARRAY;
        } else {
            return typeVariables.toArray(new TypeVariable[typeVariables.size()]);
        }
    }

}