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Posted to dev@commons.apache.org by ra...@apache.org on 2006/04/06 07:36:32 UTC

svn commit: r391906 - in /jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env: jexl/JexlEvaluator.java jsp/ELEvaluator.java

Author: rahul
Date: Wed Apr  5 22:36:30 2006
New Revision: 391906

URL: http://svn.apache.org/viewcvs?rev=391906&view=rev
Log:
Make null expressions trivially evaluate to null.

Modified:
    jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env/jexl/JexlEvaluator.java
    jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env/jsp/ELEvaluator.java

Modified: jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env/jexl/JexlEvaluator.java
URL: http://svn.apache.org/viewcvs/jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env/jexl/JexlEvaluator.java?rev=391906&r1=391905&r2=391906&view=diff
==============================================================================
--- jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env/jexl/JexlEvaluator.java (original)
+++ jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env/jexl/JexlEvaluator.java Wed Apr  5 22:36:30 2006
@@ -62,6 +62,9 @@
      */
     public Object eval(final Context ctx, final String expr)
     throws SCXMLExpressionException {
+        if (expr == null) {
+            return null;
+        }
         JexlContext jexlCtx = null;
         if (ctx instanceof JexlContext) {
             jexlCtx = (JexlContext) ctx;
@@ -86,6 +89,9 @@
      */
     public Boolean evalCond(final Context ctx, final String expr)
     throws SCXMLExpressionException {
+        if (expr == null) {
+            return null;
+        }
         JexlContext jexlCtx = null;
         if (ctx instanceof JexlContext) {
             jexlCtx = (JexlContext) ctx;
@@ -110,6 +116,9 @@
      */
     public Node evalLocation(final Context ctx, final String expr)
     throws SCXMLExpressionException {
+        if (expr == null) {
+            return null;
+        }
         JexlContext jexlCtx = null;
         if (ctx instanceof JexlContext) {
             jexlCtx = (JexlContext) ctx;

Modified: jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env/jsp/ELEvaluator.java
URL: http://svn.apache.org/viewcvs/jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env/jsp/ELEvaluator.java?rev=391906&r1=391905&r2=391906&view=diff
==============================================================================
--- jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env/jsp/ELEvaluator.java (original)
+++ jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/env/jsp/ELEvaluator.java Wed Apr  5 22:36:30 2006
@@ -72,6 +72,9 @@
      */
     public Object eval(final Context ctx, final String expr)
     throws SCXMLExpressionException {
+        if (expr == null) {
+            return null;
+        }
         VariableResolver vr = null;
         if (ctx instanceof VariableResolver) {
             vr = (VariableResolver) ctx;
@@ -97,6 +100,9 @@
      */
     public Boolean evalCond(final Context ctx, final String expr)
     throws SCXMLExpressionException {
+        if (expr == null) {
+            return null;
+        }
         VariableResolver vr = null;
         if (ctx instanceof VariableResolver) {
             vr = (VariableResolver) ctx;
@@ -122,6 +128,9 @@
      */
     public Node evalLocation(final Context ctx, final String expr)
     throws SCXMLExpressionException {
+        if (expr == null) {
+            return null;
+        }
         VariableResolver vr = null;
         if (ctx instanceof VariableResolver) {
             vr = (VariableResolver) ctx;



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