Author: adrianc
Date: Wed Apr 4 12:49:12 2012
New Revision: 1309360
URL: http://svn.apache.org/viewvc?rev=1309360&view=rev
Log:
Added some static methods to FlexibleStringExpander that enable querying an
expression about its component parts.
Modified:
ofbiz/trunk/framework/base/src/org/ofbiz/base/util/string/FlexibleStringExpander.java
Modified:
ofbiz/trunk/framework/base/src/org/ofbiz/base/util/string/FlexibleStringExpander.java
URL:
http://svn.apache.org/viewvc/ofbiz/trunk/framework/base/src/org/ofbiz/base/util/string/FlexibleStringExpander.java?rev=1309360&r1=1309359&r2=1309360&view=diff
==============================================================================
---
ofbiz/trunk/framework/base/src/org/ofbiz/base/util/string/FlexibleStringExpander.java
(original)
+++
ofbiz/trunk/framework/base/src/org/ofbiz/base/util/string/FlexibleStringExpander.java
Wed Apr 4 12:49:12 2012
@@ -51,6 +51,55 @@ public abstract class FlexibleStringExpa
protected static final UtilCache<Key, FlexibleStringExpander> exprCache =
UtilCache.createUtilCache("flexibleStringExpander.ExpressionCache");
protected static final FlexibleStringExpander nullExpr = new
ConstSimpleElem(new char[0]);
+ /**
+ * Returns <code>true</code> if <code>fse</code> contains a
<code>String</code> constant.
+ * @param fse The <code>FlexibleStringExpander</code> to test
+ * @return <code>true</code> if <code>fse</code> contains a
<code>String</code> constant
+ */
+ public static boolean containsConstant(FlexibleStringExpander fse) {
+ if (fse instanceof ConstSimpleElem || fse instanceof ConstOffsetElem) {
+ return true;
+ }
+ if (fse instanceof Elements) {
+ Elements fseElements = (Elements) fse;
+ for (FlexibleStringExpander childElement : fseElements.childElems)
{
+ if (containsConstant(childElement)) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Returns <code>true</code> if <code>fse</code> contains an expression.
+ * @param fse The <code>FlexibleStringExpander</code> to test
+ * @return <code>true</code> if <code>fse</code> contains an expression
+ */
+ public static boolean containsExpression(FlexibleStringExpander fse) {
+ return !(fse instanceof ConstSimpleElem);
+ }
+
+ /**
+ * Returns <code>true</code> if <code>fse</code> contains a script.
+ * @param fse The <code>FlexibleStringExpander</code> to test
+ * @return <code>true</code> if <code>fse</code> contains a script
+ */
+ public static boolean containsScript(FlexibleStringExpander fse) {
+ if (fse instanceof ScriptElem) {
+ return true;
+ }
+ if (fse instanceof Elements) {
+ Elements fseElements = (Elements) fse;
+ for (FlexibleStringExpander childElement : fseElements.childElems)
{
+ if (containsScript(childElement)) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+
/** Evaluate an expression and return the result as a <code>String</code>.
* Null expressions return <code>null</code>.
* A null <code>context</code> argument will return the original
expression.
