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49 lines
1.3 KiB
49 lines
1.3 KiB
# Spring EnumerablePropertySource
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- Author: [HuiFer](https://github.com/huifer)
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- 源码阅读仓库: [SourceHot-spring](https://github.com/SourceHot/spring-framework-read)
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- 全路径: `org.springframework.core.env.EnumerablePropertySource`
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- 在这个类中定义了一个抽象方法`getPropertyNames` 用来获取所有的 property 的名称
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```java
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public abstract String[] getPropertyNames();
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```
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- 整体代码如下
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```java
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public abstract class EnumerablePropertySource<T> extends PropertySource<T> {
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public EnumerablePropertySource(String name, T source) {
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super(name, source);
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}
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protected EnumerablePropertySource(String name) {
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super(name);
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}
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/**
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* Return whether this {@code PropertySource} contains a property with the given name.
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* <p>This implementation checks for the presence of the given name within the
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* {@link #getPropertyNames()} array.
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*
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* 在属性列表中是否存在 properties
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* @param name the name of the property to find
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*/
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@Override
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public boolean containsProperty(String name) {
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return ObjectUtils.containsElement(getPropertyNames(), name);
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}
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/**
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* Return the names of all properties contained by the
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* 获取所有的 properties 名称
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* {@linkplain #getSource() source} object (never {@code null}).
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*/
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public abstract String[] getPropertyNames();
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}
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```
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