Add properties class to bind to in SpringApplication

Closes gh-40592

Author: mhalbritter

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/ApplicationProperties.java

@@ -0,0 +1,152 @@
+/*
+ * Copyright 2012-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot;
+
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+import org.springframework.boot.Banner.Mode;
+
+/**
+ * Spring application properties.
+ *
+ * @author Moritz Halbritter
+ */
+class ApplicationProperties {
+
+	/**
+	 * Whether bean definition overriding, by registering a definition with the same name
+	 * as an existing definition, is allowed.
+	 */
+	private boolean allowBeanDefinitionOverriding;
+
+	/**
+	 * Whether to allow circular references between beans and automatically try to resolve
+	 * them.
+	 */
+	private boolean allowCircularReferences;
+
+	/**
+	 * Mode used to display the banner when the application runs.
+	 */
+	private Banner.Mode bannerMode = Banner.Mode.CONSOLE;
+
+	/**
+	 * Whether to keep the application alive even if there are no more non-daemon threads.
+	 */
+	private boolean keepAlive;
+
+	/**
+	 * Whether initialization should be performed lazily.
+	 */
+	private boolean lazyInitialization = false;
+
+	/**
+	 * Whether to log information about the application when it starts.
+	 */
+	private boolean logStartupInfo = true;
+
+	/**
+	 * Whether the application should have a shutdown hook registered.
+	 */
+	private boolean registerShutdownHook = true;
+
+	/**
+	 * Sources (class names, package names, or XML resource locations) to include in the
+	 * ApplicationContext.
+	 */
+	private Set<String> sources = new LinkedHashSet<>();
+
+	/**
+	 * Flag to explicitly request a specific type of web application. If not set,
+	 * auto-detected based on the classpath.
+	 */
+	private WebApplicationType webApplicationType;
+
+	boolean isAllowBeanDefinitionOverriding() {
+		return this.allowBeanDefinitionOverriding;
+	}
+
+	void setAllowBeanDefinitionOverriding(boolean allowBeanDefinitionOverriding) {
+		this.allowBeanDefinitionOverriding = allowBeanDefinitionOverriding;
+	}
+
+	boolean isAllowCircularReferences() {
+		return this.allowCircularReferences;
+	}
+
+	void setAllowCircularReferences(boolean allowCircularReferences) {
+		this.allowCircularReferences = allowCircularReferences;
+	}
+
+	Mode getBannerMode() {
+		return this.bannerMode;
+	}
+
+	void setBannerMode(Mode bannerMode) {
+		this.bannerMode = bannerMode;
+	}
+
+	boolean isKeepAlive() {
+		return this.keepAlive;
+	}
+
+	void setKeepAlive(boolean keepAlive) {
+		this.keepAlive = keepAlive;
+	}
+
+	boolean isLazyInitialization() {
+		return this.lazyInitialization;
+	}
+
+	void setLazyInitialization(boolean lazyInitialization) {
+		this.lazyInitialization = lazyInitialization;
+	}
+
+	boolean isLogStartupInfo() {
+		return this.logStartupInfo;
+	}
+
+	void setLogStartupInfo(boolean logStartupInfo) {
+		this.logStartupInfo = logStartupInfo;
+	}
+
+	boolean isRegisterShutdownHook() {
+		return this.registerShutdownHook;
+	}
+
+	void setRegisterShutdownHook(boolean registerShutdownHook) {
+		this.registerShutdownHook = registerShutdownHook;
+	}
+
+	Set<String> getSources() {
+		return this.sources;
+	}
+
+	void setSources(Set<String> sources) {
+		this.sources = new LinkedHashSet<>(sources);
+	}
+
+	WebApplicationType getWebApplicationType() {
+		return this.webApplicationType;
+	}
+
+	void setWebApplicationType(WebApplicationType webApplicationType) {
+		this.webApplicationType = webApplicationType;
+	}
+
+}