Dependency injection types

spring-core/src/main/java/com/baeldung/dependencyinjection/constructor/BinarySearch.java

@@ -0,0 +1,30 @@
+package com.baeldung.dependencyinjection.constructor;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class BinarySearch {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(BinarySearch.class);
+
+    @Autowired
+    private SortAlgorithm sortAlgorithm;
+
+    public BinarySearch(SortAlgorithm sortAlgorithm) {
+        super();
+        this.sortAlgorithm = sortAlgorithm;
+    }
+
+    public int binarySearch(int[] numbers, int numberToBeSearched) {
+        int index = 0;
+        // Sort the input array
+        // Search the number in the array
+        // Get the index
+        LOGGER.info("Executing Bubble Sort algorithm.");
+        return index;
+    }
+
+}

spring-core/src/main/java/com/baeldung/dependencyinjection/constructor/BubbuleSortAlgorithm.java

@@ -0,0 +1,18 @@
+package com.baeldung.dependencyinjection.constructor;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+@Component
+public class BubbuleSortAlgorithm implements SortAlgorithm {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(BubbuleSortAlgorithm.class);
+
+    public int[] sort(int[] inputArray) {
+        // Sort the input array\
+        int[] sortedArray = {};
+        return sortedArray;
+    }
+
+}

spring-core/src/main/java/com/baeldung/dependencyinjection/constructor/DependencyInjection.java

@@ -0,0 +1,19 @@
+package com.baeldung.dependencyinjection.constructor;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+
+@SpringBootApplication
+public class DependencyInjection {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(DependencyInjection.class);
+
+    public static void main(String[] args) {
+        ApplicationContext applicationContext = SpringApplication.run(DependencyInjection.class, args);
+        BinarySearch bean = applicationContext.getBean(BinarySearch.class);
+        bean.binarySearch(new int[] { 1, 2, 3 }, 3);
+    }
+}

spring-core/src/main/java/com/baeldung/dependencyinjection/constructor/QuickSortAlgorithm.java

@@ -0,0 +1,16 @@
+package com.baeldung.dependencyinjection.constructor;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class QuickSortAlgorithm implements SortAlgorithm {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(QuickSortAlgorithm.class);
+
+    public int[] sort(int[] inputArray) {
+        // Sort the input array
+        int[] sortedArray = {};
+        LOGGER.info("Executing Quick Sort algorithm.");
+        return sortedArray;
+    }
+}

spring-core/src/main/java/com/baeldung/dependencyinjection/constructor/SortAlgorithm.java

@@ -0,0 +1,5 @@
+package com.baeldung.dependencyinjection.constructor;
+
+public interface SortAlgorithm {
+    public int[] sort(int[] inputArray);
+}

spring-core/src/main/java/com/baeldung/dependencyinjection/setter/BinarySearch.java

@@ -0,0 +1,28 @@
+package com.baeldung.dependencyinjection.setter;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class BinarySearch {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(BinarySearch.class);
+    private SortAlgorithm sortAlgorithm;
+
+    @Autowired
+    public void setSortAlgorithm(SortAlgorithm sortAlgorithm) {
+        this.sortAlgorithm = sortAlgorithm;
+    }
+
+    public int binarySearch(int[] numbers, int numberToBeSearched) {
+        int index = 0;
+        // Sort the input array
+        // Search the number in the array
+        // Get the index
+        LOGGER.info("Executing Bubble Sort algorithm.");
+        return index;
+    }
+
+}

spring-core/src/main/java/com/baeldung/dependencyinjection/setter/BubbuleSortAlgorithm.java

@@ -0,0 +1,18 @@
+package com.baeldung.dependencyinjection.setter;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+@Component
+public class BubbuleSortAlgorithm implements SortAlgorithm {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(BubbuleSortAlgorithm.class);
+
+    public int[] sort(int[] inputArray) {
+        // Sort the input array\
+        int[] sortedArray = {};
+        return sortedArray;
+    }
+
+}

spring-core/src/main/java/com/baeldung/dependencyinjection/setter/DependencyInjectionBySetterApplication.java

@@ -0,0 +1,20 @@
+package com.baeldung.dependencyinjection.setter;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+
+@SpringBootApplication
+public class DependencyInjectionBySetterApplication {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(DependencyInjectionBySetterApplication.class);
+
+
+    public static void main(String[] args) {
+        ApplicationContext applicationContext = SpringApplication.run(DependencyInjectionBySetterApplication.class, args);
+        BinarySearch bean = applicationContext.getBean(BinarySearch.class);
+        bean.binarySearch(new int[] { 1, 2, 3 }, 3);
+    }
+}

spring-core/src/main/java/com/baeldung/dependencyinjection/setter/QuickSortAlgorithm.java

@@ -0,0 +1,16 @@
+package com.baeldung.dependencyinjection.setter;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class QuickSortAlgorithm implements SortAlgorithm {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(QuickSortAlgorithm.class);
+
+    public int[] sort(int[] inputArray) {
+        // Sort the input array
+        int[] sortedArray = {};
+        System.out.println("Executing Quick Sort algorithm.");
+        return sortedArray;
+    }
+}

spring-core/src/main/java/com/baeldung/dependencyinjection/setter/SortAlgorithm.java

@@ -0,0 +1,5 @@
+package com.baeldung.dependencyinjection.setter;
+
+public interface SortAlgorithm {
+    public int[] sort(int[] inputArray);
+}