From 956af748b8659638526f93db7bda971d5e692156 Mon Sep 17 00:00:00 2001
From: Johann Werner <jw@oyosys.de>
Date: Tue, 21 Aug 2012 14:11:39 +0200
Subject: [PATCH] add support for >9 joins for FrontBase and DB2

---
 .../webobjects/jdbcadaptor/DB2Expression.java | 21 +++++++++++++++----
 .../jdbcadaptor/_FrontBasePlugIn.java         | 14 +++++++++++--
 2 files changed, 29 insertions(+), 6 deletions(-)

diff --git a/Frameworks/PlugIns/DB2PlugIn/Sources/com/webobjects/jdbcadaptor/DB2Expression.java b/Frameworks/PlugIns/DB2PlugIn/Sources/com/webobjects/jdbcadaptor/DB2Expression.java
index b95f496ff15..405fe400b2f 100644
--- a/Frameworks/PlugIns/DB2PlugIn/Sources/com/webobjects/jdbcadaptor/DB2Expression.java
+++ b/Frameworks/PlugIns/DB2PlugIn/Sources/com/webobjects/jdbcadaptor/DB2Expression.java
@@ -215,7 +215,7 @@ public String assembleJoinClause(String leftName,
         }
         JoinClause jc = new JoinClause();
         
-        jc.table1 = leftTable + " " + leftAlias;
+        jc.setTable1(leftTable, leftAlias);
         
         switch (semantic) {
             case EORelationship.LeftOuterJoin:
@@ -759,34 +759,47 @@ public String tableListWithRootEntity(EOEntity entity) {
         //NSLog.out.appendln("PostgresqlExpression.tableListWithRootEntity " + entity.externalName() + ", useAliases() = " + useAliases() + ", sql = " + sql); 
         return sql;
     }
+    
     /**
      * Helper class that stores a join definition and
      * helps <code>DB2Expression</code> to assemble
      * the correct join clause.
      */
-    public class JoinClause {
+    public static class JoinClause {
         String table1;
         String op;
         String table2;
         String joinCondition;
+    	String sortKey;
         
+    	@Override
         public String toString() {
             return table1 + op + table2 + joinCondition;
         }
         
-        public boolean equals( Object obj ) {
+    	@Override
+        public boolean equals(Object obj) {
             if( obj == null || !(obj instanceof JoinClause) ) {
                 return false;
             }
             return toString().equals( obj.toString() );
         }
         
+    	public void setTable1(String leftTable, String leftAlias) {
+    		table1 = leftTable + " " + leftAlias;
+    		sortKey = leftAlias.substring(1);
+    		if (sortKey.length() < 2) {
+    			// add padding for cases with >9 joins
+    			sortKey = " " + sortKey;
+    		}
+    	}
+        
         /**
          * Property that makes this class "sortable". 
          * Needed to correctly assemble a join clause.
          */
         public String sortKey() {
-            return table1.substring( table1.indexOf( " " ) + 1 );
+            return sortKey;
         }
     }
     
diff --git a/Frameworks/PlugIns/FrontBasePlugIn/Sources/com/webobjects/jdbcadaptor/_FrontBasePlugIn.java b/Frameworks/PlugIns/FrontBasePlugIn/Sources/com/webobjects/jdbcadaptor/_FrontBasePlugIn.java
index a60d6df405d..88553c0d161 100644
--- a/Frameworks/PlugIns/FrontBasePlugIn/Sources/com/webobjects/jdbcadaptor/_FrontBasePlugIn.java
+++ b/Frameworks/PlugIns/FrontBasePlugIn/Sources/com/webobjects/jdbcadaptor/_FrontBasePlugIn.java
@@ -1329,7 +1329,7 @@ public String assembleJoinClause(String leftName, String rightName, int semantic
 			String leftTable = leftEntity.valueForSQLExpression(this);
 			JoinClause jc = new JoinClause();
 
-			jc.table1 = leftTable + " " + leftAlias;
+			jc.setTable1(leftTable, leftAlias);
 			jc.table2 = rightTable + " " + rightAlias;
 
 			switch (semantic) {
@@ -1940,6 +1940,7 @@ public static class JoinClause {
 			String op;
 			String table2;
 			String joinCondition;
+	    	String sortKey;
 
 			@Override
 			public String toString() {
@@ -1953,6 +1954,15 @@ public boolean equals(Object obj) {
 				}
 				return toString().equals(obj.toString());
 			}
+			
+			public void setTable1(String leftTable, String leftAlias) {
+	    		table1 = leftTable + " " + leftAlias;
+	    		sortKey = leftAlias.substring(1);
+	    		if (sortKey.length() < 2) {
+	    			// add padding for cases with >9 joins
+	    			sortKey = " " + sortKey;
+	    		}
+	    	}
 
 			/**
 			 * Returns the table alias for the first table (e.g. returns T2 if table 1 is "Students" T2).  This makes this class "sortable"
@@ -1961,7 +1971,7 @@ public boolean equals(Object obj) {
 			 * @return the table alias (e.g. returns T2 if table1 is "Students" T2)
 			 */
 			public String sortKey() {
-				return table1.substring(table1.indexOf(" ") + 1);
+				return sortKey;
 			}
 		}