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Posted to commits@tapestry.apache.org by da...@apache.org on 2008/03/08 21:53:29 UTC
svn commit: r635085 - in /tapestry/tapestry5/trunk/tapestry-core/src:
main/java/org/apache/tapestry/annotations/
main/java/org/apache/tapestry/corelib/components/
main/java/org/apache/tapestry/internal/transform/
main/java/org/apache/tapestry/services/...
Author: dadams
Date: Sat Mar 8 12:53:25 2008
New Revision: 635085
URL: http://svn.apache.org/viewvc?rev=635085&view=rev
Log:
TAPESTRY-2244: Add @Once annotation for caching method values
Added:
tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/annotations/Once.java
tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/internal/transform/OnceWorker.java
tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/OncePage.java
tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/OncePage2.java
tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/internal/transform/OnceWorkerTest.java
tapestry/tapestry5/trunk/tapestry-core/src/test/resources/org/apache/tapestry/integration/app1/pages/OncePage.tml
Modified:
tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/corelib/components/Unless.java
tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/internal/transform/TransformMessages.java
tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/services/TapestryModule.java
tapestry/tapestry5/trunk/tapestry-core/src/main/resources/org/apache/tapestry/internal/transform/TransformStrings.properties
tapestry/tapestry5/trunk/tapestry-core/src/site/apt/index.apt
tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/IntegrationTests.java
tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/Start.java
Added: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/annotations/Once.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/annotations/Once.java?rev=635085&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/annotations/Once.java (added)
+++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/annotations/Once.java Sat Mar 8 12:53:25 2008
@@ -0,0 +1,41 @@
+// Copyright 2006, 2007, 2008 The Apache Software Foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package org.apache.tapestry.annotations;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/** Indicates that a method should only be evaluated once and the result cached.
+ * All further calls to the method will return the cached result. Note that this
+ * annotation is inheritence-safe; if a subclass calls a superclass method that
+ * has @Once then the value the subclass method gets is the cached value.
+ * <p>
+ * The watch parameter can be passed a binding expression
+ * which will be evaluated each time the method is called. The method will then
+ * only be executed the first time it is called and after that only when the
+ * value of the binding changes. This can be used, for instance, to have the
+ * method only evaluated once per iteration of a loop by setting watch to
+ * the value or index of the loop.
+ */
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+public @interface Once {
+ /** The optional binding to watch (default binding prefix is "prop") */
+ String watch() default "";
+}
Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/corelib/components/Unless.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/corelib/components/Unless.java?rev=635085&r1=635084&r2=635085&view=diff
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/corelib/components/Unless.java (original)
+++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/corelib/components/Unless.java Sat Mar 8 12:53:25 2008
@@ -14,9 +14,8 @@
package org.apache.tapestry.corelib.components;
-import org.apache.tapestry.annotations.Parameter;
-import org.apache.tapestry.annotations.Component;
import org.apache.tapestry.Block;
+import org.apache.tapestry.annotations.Parameter;
/**
* A close relative of the {@link org.apache.tapestry.corelib.components.If} component that inverts the meaning of its
Added: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/internal/transform/OnceWorker.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/internal/transform/OnceWorker.java?rev=635085&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/internal/transform/OnceWorker.java (added)
+++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/internal/transform/OnceWorker.java Sat Mar 8 12:53:25 2008
@@ -0,0 +1,128 @@
+// Copyright 2006, 2007, 2008 The Apache Software Foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package org.apache.tapestry.internal.transform;
+
+import static java.lang.reflect.Modifier.PRIVATE;
+
+import java.util.List;
+
+import org.apache.tapestry.Binding;
+import org.apache.tapestry.TapestryConstants;
+import org.apache.tapestry.annotations.Once;
+import org.apache.tapestry.ioc.util.BodyBuilder;
+import org.apache.tapestry.model.MutableComponentModel;
+import org.apache.tapestry.services.BindingSource;
+import org.apache.tapestry.services.ClassTransformation;
+import org.apache.tapestry.services.ComponentClassTransformWorker;
+import org.apache.tapestry.services.TransformConstants;
+import org.apache.tapestry.services.TransformMethodSignature;
+import org.apache.tapestry.services.TransformUtils;
+
+/** Caches method return values for methods annotated with {@link Once}. */
+public class OnceWorker implements ComponentClassTransformWorker {
+ private final BindingSource _bindingSource;
+
+ public OnceWorker(BindingSource bindingSource) {
+ super();
+ this._bindingSource = bindingSource;
+ }
+
+ public void transform(ClassTransformation transformation, MutableComponentModel model) {
+ List<TransformMethodSignature> methods = transformation.findMethodsWithAnnotation(Once.class);
+ if (methods.isEmpty())
+ return;
+
+ for(TransformMethodSignature method : methods) {
+ if (method.getReturnType().equals("void"))
+ throw new IllegalArgumentException(TransformMessages.onceMethodMustHaveReturnValue(method));
+
+ if (method.getParameterTypes().length != 0)
+ throw new IllegalArgumentException(TransformMessages.onceMethodsHaveNoParameters(method));
+
+ String propertyName = method.getMethodName();
+
+ // add a property to store whether or not the method has been called
+ String fieldName = transformation.addField(PRIVATE, method.getReturnType(), propertyName);
+ String calledField = transformation.addField(PRIVATE, "boolean", fieldName + "$called");
+
+ Once once = transformation.getMethodAnnotation(method, Once.class);
+ String bindingField = null;
+ String bindingValueField = null;
+ boolean watching = once.watch().length() > 0;
+ if (watching) {
+ // add fields to store the binding and the value
+ bindingField = transformation.addField(PRIVATE, Binding.class.getCanonicalName(), fieldName + "$binding");
+ bindingValueField = transformation.addField(PRIVATE, "java.lang.Object", fieldName + "$bindingValue");
+
+ String bindingSourceField = transformation.addInjectedField(BindingSource.class, fieldName + "$bindingsource", _bindingSource);
+
+ String body = String.format("%s = %s.newBinding(\"Watch expression\", %s, \"%s\", \"%s\");",
+ bindingField,
+ bindingSourceField,
+ transformation.getResourcesFieldName(),
+ TapestryConstants.PROP_BINDING_PREFIX,
+ once.watch());
+ transformation.extendMethod(TransformConstants.CONTAINING_PAGE_DID_LOAD_SIGNATURE, body);
+ }
+
+ BodyBuilder b = new BodyBuilder();
+
+ // on cleanup, reset the field values
+ b.begin();
+
+ if (!TransformUtils.isPrimitive(method.getReturnType()))
+ b.addln("%s = null;", fieldName);
+ b.addln("%s = false;", calledField);
+
+ if (watching)
+ b.addln("%s = null;", bindingValueField);
+
+ b.end();
+ transformation.extendMethod(TransformConstants.POST_RENDER_CLEANUP_SIGNATURE, b.toString());
+
+ // prefix the existing method to cache the result
+ b.clear();
+ b.begin();
+
+ // if it has been called and watch is set and the old value is the same as the new value then return
+ // get the old value and cache it
+ /* NOTE: evaluates the binding twice when checking the new value.
+ * this is probably not a problem because in most cases properties
+ * that are being watched are not expensive operations. plus, we
+ * never guaranteed that it would be called exactly once when
+ * watching.
+ */
+ if (watching) {
+ b.addln("if (%s && %s == %s.get()) return %s;",
+ calledField, bindingValueField, bindingField, fieldName);
+ b.addln("%s = %s.get();", bindingValueField, bindingField);
+ }
+ else {
+ b.addln("if (%s) return %s;", calledField, fieldName);
+ }
+
+ b.addln("%s = true;", calledField);
+ b.end();
+ transformation.prefixMethod(method, b.toString());
+
+ // cache the return value
+ b.clear();
+ b.begin();
+ b.addln("%s = $_;", fieldName);
+ b.end();
+ transformation.extendExistingMethod(method, b.toString());
+ }
+ }
+}
Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/internal/transform/TransformMessages.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/internal/transform/TransformMessages.java?rev=635085&r1=635084&r2=635085&view=diff
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/internal/transform/TransformMessages.java (original)
+++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/internal/transform/TransformMessages.java Sat Mar 8 12:53:25 2008
@@ -17,6 +17,7 @@
import org.apache.tapestry.ioc.Messages;
import org.apache.tapestry.ioc.internal.util.MessagesImpl;
import org.apache.tapestry.runtime.Component;
+import org.apache.tapestry.services.TransformMethodSignature;
class TransformMessages
{
@@ -33,4 +34,11 @@
.getComponentResources().getCompleteId(), fieldName, fieldType);
}
+ static String onceMethodMustHaveReturnValue(TransformMethodSignature method) {
+ return MESSAGES.format("once-no-return-value", method);
+ }
+
+ static String onceMethodsHaveNoParameters(TransformMethodSignature method) {
+ return MESSAGES.format("once-no-parameters", method);
+ }
}
Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/services/TapestryModule.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/services/TapestryModule.java?rev=635085&r1=635084&r2=635085&view=diff
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/services/TapestryModule.java (original)
+++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/services/TapestryModule.java Sat Mar 8 12:53:25 2008
@@ -223,7 +223,7 @@
* annotation</dd> <dt>ContentType</dt> <dd>Checks for {@link org.apache.tapestry.annotations.ContentType}
* annotation</dd> <dt>ResponseEncoding</dt> <dd>Checks for the {@link org.apache.tapestry.annotations.ResponseEncoding}
* annotation</dd> <dt>GenerateAccessors</dt> <dd>Generates accessor methods if {@link
- * org.apache.tapestry.annotations.Property} annotation is present </dd> </dl>
+ * org.apache.tapestry.annotations.Property} annotation is present </dd> <dt>Once</dt> <dd>Checks for the {@link Once} annotation</dd></dl>
*/
public static void contributeComponentClassTransformWorker(
OrderedConfiguration<ComponentClassTransformWorker> configuration,
@@ -243,6 +243,8 @@
// TODO: Proper scheduling of all of this. Since a given field or method should
// only have a single annotation, the order doesn't matter so much, as long as
// UnclaimedField is last.
+
+ configuration.add("Once", locator.autobuild(OnceWorker.class));
configuration.add("Meta", new MetaWorker());
Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/resources/org/apache/tapestry/internal/transform/TransformStrings.properties
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/resources/org/apache/tapestry/internal/transform/TransformStrings.properties?rev=635085&r1=635084&r2=635085&view=diff
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/main/resources/org/apache/tapestry/internal/transform/TransformStrings.properties (original)
+++ tapestry/tapestry5/trunk/tapestry-core/src/main/resources/org/apache/tapestry/internal/transform/TransformStrings.properties Sat Mar 8 12:53:25 2008
@@ -14,3 +14,5 @@
field-injection-error=Error obtaining injected value for field %s.%s: %s
component-not-assignable-to-field=Component %s is not assignable to field %s (of type %s).
+once-no-return-value=@Once may only be used with methods that return values: %s
+once-no-parameters=@Once cannot be used with methods that accept parameters: %s
\ No newline at end of file
Modified: tapestry/tapestry5/trunk/tapestry-core/src/site/apt/index.apt
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/site/apt/index.apt?rev=635085&r1=635084&r2=635085&view=diff
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/site/apt/index.apt (original)
+++ tapestry/tapestry5/trunk/tapestry-core/src/site/apt/index.apt Sat Mar 8 12:53:25 2008
@@ -10,6 +10,8 @@
New And Of Note
+ * The @Once annotation has been added to allowing the caching of method results.
+
* Tapestry can now generate accessor methods for fields automatically via the @Property annotation.
* It is now possible to override the built-in display and edit blocks for data types.
Modified: tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/IntegrationTests.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/IntegrationTests.java?rev=635085&r1=635084&r2=635085&view=diff
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/IntegrationTests.java (original)
+++ tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/IntegrationTests.java Sat Mar 8 12:53:25 2008
@@ -1860,6 +1860,26 @@
"Class org.apache.tapestry.integration.app1.pages.Datum contains field(s) (_value) that are not private. You should change these fields to private, and add accessor methods if needed.");
}
+ /** TAPESTRY-2244 */
+ @Test
+ public void once()
+ {
+ start("Once Annotation");
+
+ assertText("//span[@id='value']", "000");
+ assertText("//span[@id='value2size']", "111");
+
+ assertText("//span[@class='watch'][1]", "0");
+ assertText("//span[@class='watch'][2]", "0");
+ assertText("//span[@class='watch'][3]", "1");
+ }
+
+ /** TAPESTRY-2244 */
+ @Test
+ public void override_method_with_once() {
+ start("Once Annotation2");
+ assertText("//span[@id='value']", "111");
+ }
private void sleep(long timeout)
{
Added: tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/OncePage.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/OncePage.java?rev=635085&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/OncePage.java (added)
+++ tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/OncePage.java Sat Mar 8 12:53:25 2008
@@ -0,0 +1,50 @@
+package org.apache.tapestry.integration.app1.pages;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tapestry.annotations.Once;
+
+public class OncePage {
+ private int value;
+ private List<String> value2;
+ private int value3;
+
+ private Integer watchValue;
+
+ void beginRender() {
+ value = 0;
+ value2 = new ArrayList<String>();
+ value3 = 0;
+ watchValue = 0;
+ }
+
+ @Once
+ public int getValue() {
+ return value++;
+ }
+
+ @Once
+ public List<String> getValue2() {
+ value2.add("a");
+ return value2;
+ }
+
+ @Once(watch="watchValue")
+ public int getValue3() {
+ return value3++;
+ }
+
+ public Integer getWatchValue() {
+ return watchValue;
+ }
+
+ public void setWatchValue(Integer watchValue) {
+ this.watchValue = watchValue;
+ }
+
+ public Object incrWatchValue() {
+ watchValue++;
+ return null;
+ }
+}
Added: tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/OncePage2.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/OncePage2.java?rev=635085&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/OncePage2.java (added)
+++ tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/OncePage2.java Sat Mar 8 12:53:25 2008
@@ -0,0 +1,10 @@
+package org.apache.tapestry.integration.app1.pages;
+
+public class OncePage2 extends OncePage {
+
+ @Override
+ public int getValue() {
+ return super.getValue()+1;
+ }
+
+}
Modified: tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/Start.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/Start.java?rev=635085&r1=635084&r2=635085&view=diff
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/Start.java (original)
+++ tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/integration/app1/pages/Start.java Sat Mar 8 12:53:25 2008
@@ -247,7 +247,12 @@
new Item("IndirectProtectedFields", "Protected Fields Demo", "demo exception when component class contains protected fields"),
new Item("injectcomponentdemo", "Inject Component Demo",
- "inject component defined in template"));
+ "inject component defined in template"),
+
+ new Item("oncepage", "Once Annotation", "Caching method return values"),
+
+ new Item("oncepage2", "Once Annotation2", "Caching method return values w/ inheritence")
+ );
static
{
Added: tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/internal/transform/OnceWorkerTest.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/internal/transform/OnceWorkerTest.java?rev=635085&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/internal/transform/OnceWorkerTest.java (added)
+++ tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry/internal/transform/OnceWorkerTest.java Sat Mar 8 12:53:25 2008
@@ -0,0 +1,57 @@
+// Copyright 2006, 2007, 2008 The Apache Software Foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package org.apache.tapestry.internal.transform;
+
+import java.lang.reflect.Modifier;
+import java.util.Arrays;
+
+import org.apache.tapestry.annotations.Once;
+import org.apache.tapestry.services.ClassTransformation;
+import org.apache.tapestry.services.TransformMethodSignature;
+import org.apache.tapestry.test.TapestryTestCase;
+import org.testng.annotations.Test;
+
+/** Mostly just testing error conditions here. Functionality testing in integration tests. */
+@Test
+public class OnceWorkerTest extends TapestryTestCase
+{
+ public void must_have_return_type() throws Exception {
+ ClassTransformation ct = mockClassTransformation();
+ TransformMethodSignature sig = new TransformMethodSignature(Modifier.PUBLIC, "void", "getFoo", new String[0], new String[0]);
+
+ expect(ct.findMethodsWithAnnotation(Once.class)).andReturn(Arrays.asList(sig));
+
+ replay();
+ try {
+ new OnceWorker(null).transform(ct, null);
+ fail("did not throw");
+ } catch (IllegalArgumentException e) {}
+ verify();
+ }
+
+ public void must_not_have_parameters() throws Exception {
+ ClassTransformation ct = mockClassTransformation();
+ TransformMethodSignature sig = new TransformMethodSignature(Modifier.PUBLIC, "java.lang.Object", "getFoo", new String[] { "boolean" }, new String[0]);
+
+ expect(ct.findMethodsWithAnnotation(Once.class)).andReturn(Arrays.asList(sig));
+
+ replay();
+ try {
+ new OnceWorker(null).transform(ct, null);
+ fail("did not throw");
+ } catch (IllegalArgumentException e) {}
+ verify();
+ }
+}
Added: tapestry/tapestry5/trunk/tapestry-core/src/test/resources/org/apache/tapestry/integration/app1/pages/OncePage.tml
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/test/resources/org/apache/tapestry/integration/app1/pages/OncePage.tml?rev=635085&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/tapestry-core/src/test/resources/org/apache/tapestry/integration/app1/pages/OncePage.tml (added)
+++ tapestry/tapestry5/trunk/tapestry-core/src/test/resources/org/apache/tapestry/integration/app1/pages/OncePage.tml Sat Mar 8 12:53:25 2008
@@ -0,0 +1,13 @@
+<html t:type="Border" xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd">
+ <h1>@Once tests</h1>
+ <p>This page tests the @Once annotation.</p>
+
+ <span id="value">${value}${value}${value}</span>
+ <span id="value2size">${value2.size()}${value2.size()}${value2.size()}</span>
+
+ ${incrWatchValue()}
+ <span class="watch">${value3}</span>
+ <span class="watch">${value3}</span>
+ ${incrWatchValue()}
+ <span class="watch">${value3}</span>
+</html>