AbstractSearchKeywordResolverImpl.java

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package com.sun.faces.component.search;

import javax.faces.component.UIComponent;
import javax.faces.component.search.SearchExpressionContext;
import javax.faces.component.search.SearchExpressionHint;
import javax.faces.component.search.SearchKeywordResolver;

public abstract class AbstractSearchKeywordResolverImpl extends SearchKeywordResolver {
    
    protected <T> T closest(Class<T> type, UIComponent base)  {
        UIComponent parent = base.getParent();

        while (parent != null)  {
            if (type.isAssignableFrom(parent.getClass())) {
                return (T) parent;
            }

            parent = parent.getParent();
        }

        return null;
    }

    protected boolean isHintSet(SearchExpressionContext searchExpressionContext, SearchExpressionHint hint) {
        return searchExpressionContext.getExpressionHints().contains(hint);
    }
}