IF component's condition expression get evaluated 3 or more times when it
should only be evaluated once.
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Key: TAPESTRY-1477
URL: https://issues.apache.org/jira/browse/TAPESTRY-1477
Project: Tapestry
Issue Type: Bug
Components: Core Components
Affects Versions: 4.1.2
Environment: At least since 4.1.2-20070501.233137-64, but an old
4.1.2-20070215.051249-15 worked correctly.
Java 1.5, Tomcat 5.5.23 (should not matter), caching off. IE 6 and Firefox 2
on XP Pro.
Reporter: Daniel Jue
Fix For: 4.1.2
I've simplified the problem code even
more, to eliminate any confusion:
plain.java:
package com.phy6.app;
import org.apache.tapestry.IComponent;
import org.apache.tapestry.annotations.Component;
import org.apache.tapestry.annotations.InitialValue;
import org.apache.tapestry.html.BasePage;
public abstract class plain extends BasePage {
public boolean getDoStuff() {
this.setNumber(this.getNumber() + 1);
System.out.println("plain: getDoStuff() " + this.getNumber());
return false;
}
@Component(type = "If", id = "ifXYZ", bindings = {
"condition=getDoStuff()" })
public abstract IComponent getIfXYZ();
@InitialValue("0")
public abstract int getNumber();
@Component(type="Insert",id="wtfisgoingon",bindings={"value=getNumber()"})
public abstract IComponent getWTFisgoingon();
public abstract void setNumber(int n);
}
plain.html:
<html>
<body>
<span jwcid="ifXYZ">Hi</span>
<span jwcid="wtfisgoingon" />
</body>
</html>
plain.page is still an empty page spec.
Same output:
May 17, 2007 1:57:40 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 5328 ms
plain: getDoStuff() 1
plain: getDoStuff() 2
plain: getDoStuff() 3
Expected output:
plain: getDoStuff() 1
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