costin 01/05/27 22:07:37
Modified: jasper34/runtime/org/apache/jasper34/runtime
JspRuntimeLibrary.java
Log:
Quick optimization for jsp:get/setProperty. Method lookup result
is cached, as it is the most expensive part of method invocation.
This can be quite easily put back into 3.3 - but I don't think it's
a good idea: we'll have more tunnings and it'll save time to keep
33 stable and just replace the whole thing when it has had enough testing.
Revision Changes Path
1.2 +37 -6
jakarta-tomcat-jasper/jasper34/runtime/org/apache/jasper34/runtime/JspRuntimeLibrary.java
Index: JspRuntimeLibrary.java
===================================================================
RCS file:
/home/cvs/jakarta-tomcat-jasper/jasper34/runtime/org/apache/jasper34/runtime/JspRuntimeLibrary.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- JspRuntimeLibrary.java 2001/05/27 23:09:20 1.1
+++ JspRuntimeLibrary.java 2001/05/28 05:07:37 1.2
@@ -60,6 +60,7 @@
import java.io.IOException;
import java.util.Enumeration;
+import java.util.Hashtable;
import java.lang.reflect.Method;
@@ -216,6 +217,7 @@
//-------------------------------------------------------------------
// functions to convert builtin Java data types to string.
//-------------------------------------------------------------------
+ // Used by GetProperty
// __begin toStringMethod
public static String toString(Object o) {
return (o == null) ? "" : o.toString();
@@ -540,11 +542,26 @@
throw new JasperException(ex);
}
}
+
+ public static Hashtable readMethodCache=new Hashtable();
+ public static Hashtable writeMethodCache=new Hashtable();
- public static java.lang.reflect.Method getWriteMethod(Class beanClass, String
prop)
- throws JasperException {
+
+ public static java.lang.reflect.Method getWriteMethod(Class beanClass,
+ String prop)
+ throws JasperException
+ {
java.lang.reflect.Method method = null;
Class type = null;
+
+ Hashtable methods=(Hashtable)writeMethodCache.get( beanClass );
+ if( methods==null ) {
+ methods=new Hashtable();
+ writeMethodCache.put( beanClass, methods );
+ }
+ method=(java.lang.reflect.Method)methods.get( prop );
+ if( method != null ) return method;
+
try {
java.beans.BeanInfo info
= java.beans.Introspector.getBeanInfo(beanClass);
@@ -578,14 +595,27 @@
new Object[] {prop, beanClass.getName()}));
}
}
+
+ methods.put( prop, method );
return method;
}
- public static java.lang.reflect.Method getReadMethod(Class beanClass, String
prop)
- throws JasperException {
- java.lang.reflect.Method method = null;
+ public static java.lang.reflect.Method getReadMethod(Class beanClass,
+ String prop)
+ throws JasperException
+ {
+ java.lang.reflect.Method method = null;
Class type = null;
- try {
+
+ Hashtable methods=(Hashtable)readMethodCache.get( beanClass );
+ if( methods==null ) {
+ methods=new Hashtable();
+ readMethodCache.put( beanClass, methods );
+ }
+ method=(java.lang.reflect.Method)methods.get( prop );
+ if( method != null ) return method;
+
+ try {
java.beans.BeanInfo info
= java.beans.Introspector.getBeanInfo(beanClass);
if ( info != null ) {
@@ -619,6 +649,7 @@
}
}
+ methods.put( prop, method );
return method;
}
