AbstractModelProvider.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package com.sun.tools.visualvm.core.model;

import com.sun.tools.visualvm.core.datasource.DataSource;

/**
 * Abstract class, which simplifies implementation of {@link ModelProvider}.
 * It uses class hierarchy to compute priority of providers.
 * @author Tomas Hurka
 */
public abstract class AbstractModelProvider<M extends Model,B extends DataSource> implements ModelProvider<M,B> {
    
    /**
     * {@inheritDoc}
     */ 
    public abstract M createModelFor(B app);
    
    public int priority() {
        int depth = 1;
        Class cls = getClass();
        
        for (;!cls.equals(AbstractModelProvider.class);cls=cls.getSuperclass()) {
            depth++;
        }
        return depth;
    }
}