Prepare4.2 (#1329)

* Implement caching of the Gradle and Maven files
Provided by @YunLemon via PR #1307

* Fix CREATE TABLE AS SELECT ... UNION SELECT ...
Provided by @fanchuo via PR #1309

* Fix #1316
Add more specific tests verifying the nature of the UpdateSets
Allow "SELECT *" (without FROM) to parse, its a valid SELECT statement

* Add the enhancements since Release 4.1

* Adjust the Coverage

* Improve Test Coverage

* Revert the Special Oracle Tests (accidentally set to FAILURE)

Co-authored-by: Tobias <t.warneke@gmx.net>

Author: manticore-projects

.travis.yml

@@ -4,4 +4,10 @@ jdk:
   - openjdk11
 
 after_success:
-  - mvn clean cobertura:cobertura coveralls:report
+  - mvn clean cobertura:cobertura coveralls:report
+
+cache:
+  directories:
+    - $HOME/.m2
+    - $HOME/.gradle/caches/
+    - $HOME/.gradle/wrapper/

README.md

@@ -54,9 +54,25 @@ To help JSqlParser's development you are encouraged to provide
 Also I would like to know about needed examples or documentation stuff.
 
 ## Extensions in the latest SNAPSHOT version 4.2
-
+* API change: Support `SELECT ...` without a `FROM` clause, making `SELECT 1, 2` and `SELECT *` parsable statements (before those failed)
+* API change: Support complex `UPDATE` sets (using multiple `SubQuery` or `ValueList` or Single Values, in combination)
+* Support nested `CASE` expressions with complex expression arguments
+* API change: Support `JOIN` with multiple trailing `ON` Expressions (`JOIN ... JOIN ... ON ... ON ...`)
+* Support Oracle Hierarchical `CONNECT_BY_ROOT` Operator
+* Support Transact-SQL `IF ... ELSE ...` Statement Control Flows.
+* Allow optional parameters for the  `ALTER TABLE ...` statement (e.g. `ALTER TABLE ... MOVE TABLESPACE ...`)
+* Support Oracle `ALTER SYSTEM ...` statement
+* Support Oracle Named Function Parameters`Func( param1 => arg1, ...`
+* Add Gradle build
+* Allow `JdbcParameter` or `JdbcNamedParameter` for MySQL FullTextSearch
+* Allow `Cast` into `Row` Constructor  
+* Support Oracle `RENAME ... TO ...` statement
+* Support Oracle `PURGE` statement
+* Support JSON functions `JSON_OBJECT()`, `JSON_ARRAY()`, `JSON_OBJECTAGG()`, `JSON_ARRAYAGG()`
 * API change: merge ALL and ANY expressions class
-* allow `CURRENT DATE`in addition to `CURRENT_DATE` (without underbar)
+* Allow DB2 compliant `CURRENT DATE`in addition to `CURRENT_DATE` (without underscore)
+
+Additionally, we have fixed many errors and improved the code quality and the test coverage.
 
 ## Extensions of JSqlParser releases
 
@@ -67,16 +83,22 @@ Also I would like to know about needed examples or documentation stuff.
 ## Building from the sources
 
 As the project is a Maven project, building is rather simple by running:
+```shell
+mvn package
+```
 
-	mvn package
+Since 4.2, alternatively Gradle can be used
+```shell
+gradle build
+```
 
 The project requires the following to build:
-- Maven 
+- Maven (or Gradle)
 - JDK 8 or later. The jar will target JDK 8, but the version of the maven-compiler-plugin that JsqlParser uses requires JDK 8+
 
-This will produce the jsqlparser-VERSION.jar file in the target/ directory.
+This will produce the jsqlparser-VERSION.jar file in the `target/` directory (`build/libs/jsqlparser-VERSION.jar` in case of Gradle).
 
-**To build this project without using Maven, one has to build the parser by JavaCC using the CLI options it provides.**
+**To build this project without using Maven or Gradle, one has to build the parser by JavaCC using the CLI options it provides.**
 
 ## Debugging through problems
 
@@ -124,7 +146,7 @@ And this is the dependency declaration in your pom:
 <dependency>
 	<groupId>com.github.jsqlparser</groupId>
 	<artifactId>jsqlparser</artifactId>
-	<version>4.0</version>
+	<version>4.1</version>
 </dependency>
 ```
 

build.gradle

@@ -73,7 +73,7 @@ jacocoTestCoverageVerification {
     violationRules {
         rule {
             limit {
-                minimum = 0.837
+                minimum = 0.838
             }
         }
     }

src/main/java/net/sf/jsqlparser/statement/update/Update.java

@@ -183,12 +183,12 @@ public void setSelect(Select select) {
 
     @Deprecated
     public boolean isUseColumnsBrackets() {
-        return updateSets.get(0).usingBrackets;
+        return updateSets.get(0).usingBracketsForColumns;
     }
 
     @Deprecated
     public void setUseColumnsBrackets(boolean useColumnsBrackets) {
-        updateSets.get(0).usingBrackets = useColumnsBrackets;
+        updateSets.get(0).usingBracketsForColumns = useColumnsBrackets;
     }
 
     @Deprecated
@@ -268,7 +268,7 @@ public String toString() {
                 b.append(", ");
             }
 
-            if (updateSet.usingBrackets) {
+            if (updateSet.usingBracketsForColumns) {
                 b.append("(");
             }
 
@@ -279,46 +279,28 @@ public String toString() {
                 b.append(updateSet.columns.get(i));
             }
 
-            if (updateSet.usingBrackets) {
+            if (updateSet.usingBracketsForColumns) {
                 b.append(")");
             }
 
             b.append(" = ");
 
+            if (updateSet.usingBracketsForValues) {
+                b.append("(");
+            }
+
             for (int i = 0; i < updateSet.expressions.size(); i++) {
                 if (i > 0) {
                     b.append(", ");
                 }
                 b.append(updateSet.expressions.get(i));
             }
+            if (updateSet.usingBracketsForValues) {
+                b.append(")");
+            }
 
             j++;
         }
-
-//        if (!useSelect) {
-//            for (int i = 0; i < getColumns().size(); i++) {
-//                if (i != 0) {
-//                    b.append(", ");
-//                }
-//                b.append(columns.get(i)).append(" = ");
-//                b.append(expressions.get(i));
-//            }
-//        } else {
-//            if (useColumnsBrackets) {
-//                b.append("(");
-//            }
-//            for (int i = 0; i < getColumns().size(); i++) {
-//                if (i != 0) {
-//                    b.append(", ");
-//                }
-//                b.append(columns.get(i));
-//            }
-//            if (useColumnsBrackets) {
-//                b.append(")");
-//            }
-//            b.append(" = ");
-//            b.append("(").append(select).append(")");
-//        }
         if (fromItem != null) {
             b.append(" FROM ").append(fromItem);
             if (joins != null) {

src/main/java/net/sf/jsqlparser/statement/update/UpdateSet.java

@@ -17,7 +17,8 @@
 import java.util.Objects;
 
 public class UpdateSet {
-    protected boolean usingBrackets = false;
+    protected boolean usingBracketsForColumns = false;
+    protected boolean usingBracketsForValues = false;
     protected ArrayList<Column> columns = new ArrayList<>();
     protected ArrayList<Expression> expressions = new ArrayList<>();
 
@@ -34,12 +35,20 @@ public UpdateSet(Column column, Expression expression) {
         this.expressions.add(expression);
     }
 
-    public boolean isUsingBrackets() {
-        return usingBrackets;
+    public boolean isUsingBracketsForValues() {
+        return usingBracketsForValues;
     }
 
-    public void setUsingBrackets(boolean usingBrackets) {
-        this.usingBrackets = usingBrackets;
+    public void setUsingBracketsForValues(boolean usingBracketsForValues) {
+        this.usingBracketsForValues = usingBracketsForValues;
+    }
+
+    public boolean isUsingBracketsForColumns() {
+        return usingBracketsForColumns;
+    }
+
+    public void setUsingBracketsForColumns(boolean usingBracketsForColumns) {
+        this.usingBracketsForColumns = usingBracketsForColumns;
     }
 
     public ArrayList<Column> getColumns() {
@@ -61,13 +70,18 @@ public void setExpressions(ArrayList<Expression> expressions) {
     public void add(Column column, Expression expression) {
         columns.add(column);
         expressions.add(expression);
-    };
+    }
 
     public void add(Column column) {
         columns.add(column);
-    };
+    }
+
+    public void add(Expression expression) {
+        expressions.add(expression);
+    }
 
     public void add(ExpressionList expressionList) {
         expressions.addAll(expressionList.getExpressions());
-    };
+    }
+
 }

src/main/java/net/sf/jsqlparser/util/deparser/UpdateDeParser.java

@@ -66,7 +66,7 @@ public void deParse(Update update) {
                 buffer.append(", ");
             }
 
-            if (updateSet.isUsingBrackets()) {
+            if (updateSet.isUsingBracketsForColumns()) {
                 buffer.append("(");
             }
             for (int i = 0; i < updateSet.getColumns().size(); i++) {
@@ -75,56 +75,27 @@ public void deParse(Update update) {
                 }
                 updateSet.getColumns().get(i).accept(expressionVisitor);
             }
-            if (updateSet.isUsingBrackets()) {
+            if (updateSet.isUsingBracketsForColumns()) {
                 buffer.append(")");
             }
 
             buffer.append(" = ");
 
+            if (updateSet.isUsingBracketsForValues()) {
+                buffer.append("(");
+            }
             for (int i = 0; i < updateSet.getExpressions().size(); i++) {
                 if (i > 0) {
                     buffer.append(", ");
                 }
                 updateSet.getExpressions().get(i).accept(expressionVisitor);
             }
+            if (updateSet.isUsingBracketsForValues()) {
+                buffer.append(")");
+            }
 
             j++;
         }
-
-//        if (!update.isUseSelect()) {
-//            for (int i = 0; i < update.getColumns().size(); i++) {
-//                Column column = update.getColumns().get(i);
-//                column.accept(expressionVisitor);
-//
-//                buffer.append(" = ");
-//
-//                Expression expression = update.getExpressions().get(i);
-//                expression.accept(expressionVisitor);
-//                if (i < update.getColumns().size() - 1) {
-//                    buffer.append(", ");
-//                }
-//            }
-//        } else {
-//            if (update.isUseColumnsBrackets()) {
-//                buffer.append("(");
-//            }
-//            for (int i = 0; i < update.getColumns().size(); i++) {
-//                if (i != 0) {
-//                    buffer.append(", ");
-//                }
-//                Column column = update.getColumns().get(i);
-//                column.accept(expressionVisitor);
-//            }
-//            if (update.isUseColumnsBrackets()) {
-//                buffer.append(")");
-//            }
-//            buffer.append(" = ");
-//            buffer.append("(");
-//            Select select = update.getSelect();
-//            select.getSelectBody().accept(selectVisitor);
-//            buffer.append(")");
-//        }
-
         if (update.getFromItem() != null) {
             buffer.append(" FROM ").append(update.getFromItem());
             if (update.getJoins() != null) {