| package org.apache.tapestry.engine; |
| |
| import ognl.ClassResolver; |
| import ognl.Ognl; |
| import ognl.OgnlContext; |
| import ognl.TypeConverter; |
| import org.apache.commons.pool.BasePoolableObjectFactory; |
| |
| /** |
| * Used by {@link ExpressionEvaluatorImpl} to pool {@link ognl.OgnlContext} objects. |
| */ |
| public class PoolableOgnlContextFactory extends BasePoolableObjectFactory { |
| |
| private final ClassResolver _resolver; |
| |
| private TypeConverter _typeConverter; |
| |
| public PoolableOgnlContextFactory(ClassResolver resolver, TypeConverter typeConverter) |
| { |
| _resolver = resolver; |
| _typeConverter = typeConverter; |
| } |
| |
| public Object makeObject() |
| throws Exception |
| { |
| return Ognl.createDefaultContext(null, _resolver, _typeConverter); |
| } |
| |
| public void activateObject(Object obj) |
| throws Exception |
| { |
| OgnlContext context = (OgnlContext)obj; |
| |
| if (context.getRoot() != null || context.getValues().size() > 0) |
| { |
| context.clear(); |
| } |
| } |
| } |