BeanMetadataAttributeAccessor.java

package org.theonefx.wcframework.ioc;

/**
 * 对{@link org.theonefx.wcframework.ioc.AttributeAccessorSupport}的扩展,
 * 以{@link BeanMetadataAttribute}的形式来持有attributes，以便于跟踪attribute的definition source.
 */
public class BeanMetadataAttributeAccessor extends AttributeAccessorSupport implements BeanMetadataElement {

	private static final long serialVersionUID = 1L;
	
	private Object source;


	/**
	 * 设置当前元数据元素的configuration source对象
	 * <p>对象的确切类型将取决于所使用的配置机制.
	 */
	public void setSource(Object source) {
		this.source = source;
	}

	public Object getSource() {
		return this.source;
	}

	@Override
	public void setAttribute(String name, Object value) {
		super.setAttribute(name, new BeanMetadataAttribute(name, value));
	}

	@Override
	public Object getAttribute(String name) {
		BeanMetadataAttribute attribute = (BeanMetadataAttribute) super.getAttribute(name);
		return (attribute != null ? attribute.getValue() : null);
	}

	@Override
	public Object removeAttribute(String name) {
		BeanMetadataAttribute attribute = (BeanMetadataAttribute) super.removeAttribute(name);
		return (attribute != null ? attribute.getValue() : null);
	}
}