Added more examples to the source code

scala-talk/src/main/scala/com/blogspot/miguelinlas3/scala/intro/highorderunction/search/SearchFiles.scala

@@ -0,0 +1,25 @@
+package com.blogspot.miguelinlas3.scala.intro.highorderunction.search
+
+object Search {
+
+	private def filesInCurrentFolder = (new java.io.File(".")).listFiles
+
+	private def filesMatching(matcher: String => Boolean) =
+		for (file <- filesInCurrentFolder; if matcher(file.getName)) yield file
+
+	def filesEndingWith(query: String) = filesMatching(_.endsWith(query))
+
+	def filesContaining(query: String) = filesMatching(_.contains(query))
+
+	def filesMatchRegex(query: String) = filesMatching(_.matches(query))
+
+
+	def main (args : Array[String]) : Unit = {
+
+		val foundFiles = filesEndingWith("sbt")
+
+		for (file <- foundFiles) {
+			println (file)
+		}
+	}
+}

scala-talk/src/main/scala/com/blogspot/miguelinlas3/scala/intro/highorderunction/transaction/TransactionalService.scala

@@ -0,0 +1,43 @@
+package com.blogspot.miguelinlas3.scala.intro.highorderunction.transaction
+
+import com.blogspot.miguelinlas3.scala.intro.highorderunction.transaction.manager.{ MockTransactionManager, TransactionManagement }
+
+class TransactionalService(txManager: MockTransactionManager) extends TransactionManagement(txManager) {
+
+  def sum(x: Int, y: Int): Int = {
+    transactional[Int]() {
+      x + y
+    }
+  }
+
+  def buggy(x: Int, y: Int): Int = {
+    transactional[Int]() {
+      val result = x + y
+      if (result == 2)
+        throw new Exception()
+      result
+    }
+  }
+}
+
+object TransactionalService {
+
+  def main(args: Array[String]): Unit = {
+    def transactionalService = new TransactionalService(new MockTransactionManager())
+
+    for (index <- 1 to 10) {
+      val result = transactionalService.sum(index, index)
+      println("Result:" + result)
+    }
+
+    for (index <- 1 to 10) {
+      try {
+        val result = transactionalService.buggy(index, index)
+        println("Result:" + result)
+      } catch {
+        case e => println("An error has ocurred and the transaction has been rolled back")
+      }
+    }
+
+  }
+}