No need to create a new optional. Monads!

jeffgbutler · jeffgbutler · commit 157a23439745 · 2017-06-01T21:01:38.000-04:00
diff --git a/src/main/java/org/mybatis/dynamic/sql/SqlColumn.java b/src/main/java/org/mybatis/dynamic/sql/SqlColumn.java
@@ -74,7 +74,7 @@ public Optional<SqlTable> table() {
     }
     
     public Optional<String> tableAlias() {
-        return table().map(SqlTable::alias).orElse(Optional.empty());
+        return table().flatMap(SqlTable::alias);
     }
     
     public Optional<String> columnAlias() {

Original file line number	Diff line number	Diff line change
`@@ -74,7 +74,7 @@ public Optional<SqlTable> table() {`
`74`	`74`	`}`
`75`	`75`
`76`	`76`	`public Optional<String> tableAlias() {`
`77`		`- return table().map(SqlTable::alias).orElse(Optional.empty());`
	`77`	`+ return table().flatMap(SqlTable::alias);`
`78`	`78`	`}`
`79`	`79`
`80`	`80`	`public Optional<String> columnAlias() {`