Merge pull request #6261 from dev-chirag/master

BAEL2567 - New section on Lombok’s @Getter(lazy=true)

lombok/src/main/java/com/baeldung/lombok/getter/GetterLazy.java

@@ -0,0 +1,36 @@
+package com.baeldung.lombok.getter;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import lombok.Getter;
+
+public class GetterLazy {
+
+    private static final String DELIMETER = ",";
+
+    @Getter(lazy = true)
+    private final Map<String, Long> transactions = readTxnsFromFile();
+
+    private Map<String, Long> readTxnsFromFile() {
+
+        final Map<String, Long> cache = new HashMap<>();
+        List<String> txnRows = readTxnListFromFile();
+
+        txnRows.forEach(s -> {
+            String[] txnIdValueTuple = s.split(DELIMETER);
+            cache.put(txnIdValueTuple[0], Long.parseLong(txnIdValueTuple[1]));
+        });
+
+        return cache;
+    }
+
+    private List<String> readTxnListFromFile() {
+
+        // read large file
+        return Stream.of("file content here").collect(Collectors.toList());
+    }
+}