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package com.ctrip.framework.apollo.model;
import java.util.Map;
import java.util.Set;
/**
* A change event when a namespace's config is changed.
* @author Jason Song([email protected])
*/
public class ConfigChangeEvent {
private final String m_namespace;
private final Map m_changes;
/**
* Constructor.
* @param namespace the namespace of this change
* @param changes the actual changes
*/
public ConfigChangeEvent(String namespace,
Map changes) {
m_namespace = namespace;
m_changes = changes;
}
/**
* Get the keys changed.
* @return the list of the keys
*/
public Set changedKeys() {
return m_changes.keySet();
}
/**
* Get a specific change instance for the key specified.
* @param key the changed key
* @return the change instance
*/
public ConfigChange getChange(String key) {
return m_changes.get(key);
}
/**
* Check whether the specified key is changed
* @param key the key
* @return true if the key is changed, false otherwise.
*/
public boolean isChanged(String key) {
return m_changes.containsKey(key);
}
/**
* Get the namespace of this change event.
* @return the namespace
*/
public String getNamespace() {
return m_namespace;
}
}