22 lines
626 B
Dart
22 lines
626 B
Dart
/// Configuration Provider
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///
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/// @author sombochea
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/// @since 1.0.0
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abstract class ConfigurationProvider {
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/// check has key or not in implemented classes
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bool containsKey(String key);
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/// get or null in implemented classes
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String? getOrNull(String key, {String? defaultValue});
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/// check has key or not for async function
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Future<bool> containsKeyAsync(String key) async {
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return Future.value(containsKey(key));
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}
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/// get or null for async function
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Future<String?> getOrNullAsync(String key, {String? defaultValue}) async {
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return Future.value(getOrNull(key, defaultValue: defaultValue));
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}
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}
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