org.springframework.beans.factory.support.ManagedSet#setMergeEnabled ( )源码实例Demo

/**
 * Parses a list of elements into a set of beans/standard content.
 *
 * @param grandChildren - The set of beans/content in a bean property
 * @param child - The property tag for the parent.
 * @param parent - The parent bean that the tag is nested in.
 * @param parserContext - Provided information and functionality regarding current bean set.
 * @return A managedSet of the nested content.
 */
protected ManagedSet parseSet(ArrayList<Element> grandChildren, Element child, BeanDefinitionBuilder parent,
        ParserContext parserContext) {
    ManagedSet setItems = new ManagedSet();

    for (int i = 0; i < grandChildren.size(); i++) {
        Element grandChild = grandChildren.get(i);

        if (child.getTagName().compareTo("value") == 0) {
            setItems.add(grandChild.getTextContent());
        } else {
            setItems.add(parseBean(grandChild, parent, parserContext));
        }
    }

    String merge = child.getAttribute("merge");
    if (merge != null) {
        setItems.setMergeEnabled(Boolean.valueOf(merge));
    }

    return setItems;
}
 

/**
 * Iterates through the set values and calls helpers to process the value
 *
 * @param setVal the set to process
 * @param propertyName name of the property which has the set value
 * @param nestedBeanStack stack of bean containers which contains the set property
 */
protected void visitSet(Set setVal, String propertyName, Stack<BeanDefinitionHolder> nestedBeanStack) {
    boolean isMergeEnabled = false;
    if (setVal instanceof ManagedSet) {
        isMergeEnabled = ((ManagedSet) setVal).isMergeEnabled();
    }

    ManagedSet newSet = new ManagedSet();
    newSet.setMergeEnabled(isMergeEnabled);

    for (Object elem : setVal) {
        if (isStringValue(elem)) {
            elem = processSetStringPropertyValue(propertyName, setVal, getString(elem), nestedBeanStack,
                    beanProcessors);
        } else {
            elem = visitPropertyValue(propertyName, elem, nestedBeanStack);
        }

        newSet.add(elem);
    }

    setVal.clear();
    setVal.addAll(newSet);
}
 

/**
 * Parse a set element.
 */
public Set<Object> parseSetElement(Element collectionEle, @Nullable BeanDefinition bd) {
	String defaultElementType = collectionEle.getAttribute(VALUE_TYPE_ATTRIBUTE);
	NodeList nl = collectionEle.getChildNodes();
	ManagedSet<Object> target = new ManagedSet<>(nl.getLength());
	target.setSource(extractSource(collectionEle));
	target.setElementTypeName(defaultElementType);
	target.setMergeEnabled(parseMergeAttribute(collectionEle));
	parseCollectionElements(nl, target, bd, defaultElementType);
	return target;
}
 

/**
 * Parse a set element.
 */
public Set<Object> parseSetElement(Element collectionEle, @Nullable BeanDefinition bd) {
	String defaultElementType = collectionEle.getAttribute(VALUE_TYPE_ATTRIBUTE);
	NodeList nl = collectionEle.getChildNodes();
	ManagedSet<Object> target = new ManagedSet<>(nl.getLength());
	target.setSource(extractSource(collectionEle));
	target.setElementTypeName(defaultElementType);
	target.setMergeEnabled(parseMergeAttribute(collectionEle));
	parseCollectionElements(nl, target, bd, defaultElementType);
	return target;
}
 

/**
 * Parse a set element.
 */
public Set<Object> parseSetElement(Element collectionEle, BeanDefinition bd) {
	String defaultElementType = collectionEle.getAttribute(VALUE_TYPE_ATTRIBUTE);
	NodeList nl = collectionEle.getChildNodes();
	ManagedSet<Object> target = new ManagedSet<Object>(nl.getLength());
	target.setSource(extractSource(collectionEle));
	target.setElementTypeName(defaultElementType);
	target.setMergeEnabled(parseMergeAttribute(collectionEle));
	parseCollectionElements(nl, target, bd, defaultElementType);
	return target;
}
 

/**
 * Parse a set element.
 */
public Set<Object> parseSetElement(Element collectionEle, BeanDefinition bd) {
	String defaultElementType = collectionEle.getAttribute(VALUE_TYPE_ATTRIBUTE);
	NodeList nl = collectionEle.getChildNodes();
	ManagedSet<Object> target = new ManagedSet<Object>(nl.getLength());
	target.setSource(extractSource(collectionEle));
	target.setElementTypeName(defaultElementType);
	target.setMergeEnabled(parseMergeAttribute(collectionEle));
	parseCollectionElements(nl, target, bd, defaultElementType);
	return target;
}
 

/**
 * Parse a set element.
 */
public Set<Object> parseSetElement(Element collectionEle, BeanDefinition bd) {
	String defaultElementType = collectionEle.getAttribute(VALUE_TYPE_ATTRIBUTE);
	NodeList nl = collectionEle.getChildNodes();
	ManagedSet<Object> target = new ManagedSet<Object>(nl.getLength());
	target.setSource(extractSource(collectionEle));
	target.setElementTypeName(defaultElementType);
	target.setMergeEnabled(parseMergeAttribute(collectionEle));
	parseCollectionElements(nl, target, bd, defaultElementType);
	return target;
}