simple execute clause support

Author: wumpz

README.md

@@ -23,6 +23,12 @@ Also I would like to know about needed examples or documentation stuff.
 
 ## Extensions in the latest SNAPSHOT version 0.9.1
 
+* Simple suppor for EXECUTE.
+
+```sql
+EXECUTE myproc 'a', 2, 'b'
+```
+
 * Improved support for select into clause.
 
 ```sql

src/main/java/net/sf/jsqlparser/statement/execute/Execute.java

@@ -24,6 +24,7 @@
 import net.sf.jsqlparser.expression.operators.relational.ExpressionList;
 import net.sf.jsqlparser.statement.Statement;
 import net.sf.jsqlparser.statement.StatementVisitor;
+import net.sf.jsqlparser.statement.select.PlainSelect;
 
 /**
  *
@@ -54,5 +55,10 @@ public void setExprList(ExpressionList exprList) {
     public void accept(StatementVisitor statementVisitor) {
         statementVisitor.visit(this);
     }
-    
+
+    @Override
+    public String toString() {
+        return "EXECUTE " + name + " " + PlainSelect.getStringList(exprList.getExpressions(), true, false);
+    }
+
 }

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

@@ -0,0 +1,64 @@
+/*
+ * #%L
+ * JSQLParser library
+ * %%
+ * Copyright (C) 2004 - 2013 JSQLParser
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as 
+ * published by the Free Software Foundation, either version 2.1 of the 
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Lesser Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Lesser Public 
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ * #L%
+ */
+package net.sf.jsqlparser.util.deparser;
+
+import net.sf.jsqlparser.expression.ExpressionVisitor;
+import net.sf.jsqlparser.statement.execute.Execute;
+import net.sf.jsqlparser.statement.select.PlainSelect;
+
+public class ExecuteDeParser {
+
+	private StringBuilder buffer;
+	private ExpressionVisitor expressionVisitor;
+
+	/**
+	 * @param expressionVisitor a {@link ExpressionVisitor} to de-parse
+	 * expressions. It has to share the same<br>
+	 * StringBuilder (buffer parameter) as this object in order to work
+	 * @param buffer the buffer that will be filled with the select
+	 */
+	public ExecuteDeParser(ExpressionVisitor expressionVisitor, StringBuilder buffer) {
+		this.buffer = buffer;
+		this.expressionVisitor = expressionVisitor;
+	}
+
+	public StringBuilder getBuffer() {
+		return buffer;
+	}
+
+	public void setBuffer(StringBuilder buffer) {
+		this.buffer = buffer;
+	}
+
+	public void deParse(Execute execute) {
+		buffer.append("EXECUTE ").append(execute.getName());
+		buffer.append(" ").append(PlainSelect.getStringList(execute.getExprList().getExpressions(), true, false));
+	}
+
+	public ExpressionVisitor getExpressionVisitor() {
+		return expressionVisitor;
+	}
+
+	public void setExpressionVisitor(ExpressionVisitor visitor) {
+		expressionVisitor = visitor;
+	}
+}

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

@@ -156,6 +156,11 @@ public void visit(Statements stmts) {
 
     @Override
     public void visit(Execute execute) {
-        
+        SelectDeParser selectDeParser = new SelectDeParser();
+		selectDeParser.setBuffer(buffer);
+		ExpressionDeParser expressionDeParser = new ExpressionDeParser(selectDeParser, buffer);
+		ExecuteDeParser executeDeParser = new ExecuteDeParser(expressionDeParser, buffer);
+		selectDeParser.setExpressionVisitor(expressionDeParser);
+		executeDeParser.deParse(execute);
     }
 }

src/test/java/net/sf/jsqlparser/statement/execute/ExecuteTest.java

@@ -56,9 +56,10 @@ public void tearDown() {
 
     /**
      * Test of accept method, of class Execute.
+     * @throws net.sf.jsqlparser.JSQLParserException
      */
     @Test
     public void testAccept() throws JSQLParserException {
-        assertSqlCanBeParsedAndDeparsed("EXEC myproc 'a', 2, 'b'");
+        assertSqlCanBeParsedAndDeparsed("EXECUTE myproc 'a', 2, 'b'");
     }
 }