docs: Content SEO updates (#2990)

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function-composition/README.md

@@ -1,14 +1,16 @@
 ---
-title: Function Composition
+title: "Function Composition Pattern in Java: Crafting Elegant Functional Pipelines"
+shortTitle: Function Composition
+description: "Learn about the Function Composition design pattern in Java. Discover how to create complex functions by combining simpler ones, enhancing code modularity and reusability. Explore real-world examples, benefits, and applications."
 category: Functional
 language: en
 tag:
-    - Code simplification
-    - Composition
-    - Decoupling
-    - Functional decomposition
-    - Lambda
-    - Reusability
+  - Code simplification
+  - Composition
+  - Decoupling
+  - Functional decomposition
+  - Lambda
+  - Reusability
 ---
 
 ## Also known as
@@ -17,11 +19,11 @@ tag:
 * Function Pipelining
 * Functional Composition
 
-## Intent
+## Intent of Function Composition Design Pattern
 
-To enable creating complex functions by composing simpler ones, enhancing modularity and reusability of function-based logic.
+The Function Composition design pattern in Java enables the creation of complex functions by combining simpler ones. This enhances modular code and reusability, crucial for maintainable software development.
 
-## Explanation
+## Detailed Explanation of Function Composition Pattern with Real-World Examples
 
 Real-world example
 
@@ -37,7 +39,11 @@ Wikipedia says
 
 > Function composition is an act or mechanism to combine simple functions to build more complicated ones. Like the usual composition of functions in mathematics, the result of each function is passed as the argument of the next, and the result of the last one is the result of the whole.
 
-**Programmatic Example**
+## Programmatic Example of Function Composition Pattern in Java
+
+In the functional programming paradigm, function composition is a powerful technique. For instance, in Java, you can use higher-order functions to compose operations like multiplying and squaring numbers.
+
+Using Java's functional interfaces, we can define simple functions and compose them. Here's how function composition works in Java.
 
 Let's start with defining two simple functions. In this case, we have a function `timesTwo` that multiplies its input by 2, and a function `square` that squares its input.
 
@@ -75,32 +81,31 @@ Result of composing 'timesTwo' and 'square' functions applied to 3 is: 36
 
 This example demonstrates how the Function Composition pattern can be used to create complex functions by composing simpler ones, enhancing modularity and reusability of function-based logic.
 
-## Sequence diagram
+## Function Composition Pattern Sequence diagram
 
 ![Functional Composition Diagram](./etc/function.composition.urm.png "Functional Composition")
 
-## Applicability
+## When to Use the Function Composition Pattern in Java
 
-Use the Function Composer pattern when:
+Use the Function Composition pattern when:
 
-* You want to create a pipeline of operations where the output of one function is the input to another.
-* You need to enhance the clarity and quality of your code by structuring complex function logic into simpler, reusable components.
+* You want to create a pipeline of operations in Java. This enhances code clarity and quality by structuring complex logic into simpler, reusable components.
 * You are working in a functional programming environment or a language that supports higher-order functions.
 * When you want to avoid deep nesting of function calls and instead build a pipeline of operations.
 * When aiming to promote immutability and side-effect-free functions in your design.
 
-## Tutorials
+## Function Composition Pattern Java Tutorials
 
 * [Function Composition in Java (Medium)](https://functionalprogramming.medium.com/function-composition-in-java-beaf39426f52)
 * [Functional Programming in Java (Baeldung)](https://www.baeldung.com/java-functional-programming)
 
-## Known uses
+## Real-World Applications of Function Composition Pattern in Java
 
 * Stream processing in Java 8 and above
 * Query builders in ORM libraries
 * Middleware composition in web frameworks
 
-## Consequences
+## Benefits and Trade-offs of Function Composition Pattern
 
 Benefits:
 
@@ -116,13 +121,13 @@ Trade-offs:
 * Overhead from creating and managing multiple function objects in memory-intensive scenarios.
 * May require a paradigm shift for developers unfamiliar with functional programming concepts.
 
-## Related patterns
+## Related Java Design Patterns
 
 * [Chain of Responsibility](https://java-design-patterns.com/patterns/chain-of-responsibility/) - Both patterns allow processing to be broken down into a series of steps, but Functional Composition focuses on function composition rather than responsibility delegation.
 * [Decorator](https://java-design-patterns.com/patterns/decorator/) - Similar in combining behaviors, but Decorator applies additional behavior to objects, while Functional Composition builds new functions.
 * [Strategy](https://java-design-patterns.com/patterns/strategy/) - Provides interchangeable functions (strategies), which can be composed in Functional Composition.
 
-## Credits
+## References and Credits
 
 * [Effective Java](https://amzn.to/4cGk2Jz)
 * [Functional Programming in Java](https://amzn.to/3JUIc5Q)