Hello, I'm new to Digester, Tomcat, Servlet, Velocity, and even Java...
Yup, one of those.
I am running into a spot of bother while using Digester to parse my XML file
that I will ultimately pluck from Derby. The file starts out like this:
<Screen>
<ScreenID>3220D03D-59F7-49ca-86AE-E97B7427BA7B</ScreenID>
<Lifetime_ms>20000</Lifetime_ms>
<BugItem>
<ImageURL>cnn001.jpg</ImageURL>
...
It is a rather large file with many Vectors and I parse it just fine so long
as all the setMethods are of type String. I am using XML Rules and my file
looks like this:
<?xml version="1.0"?>
<digester-rules>
<pattern value="Screen">
<object-create-rule classname="com.synergy.screendoc.ScreenDocument"
/>
<call-method-rule pattern="ScreenID" methodname="setScreenID"
paramcount="0" />
<call-method-rule pattern="Lifetime_ms" methodname="setLifetime_ms"
paramcount="0" />
...
My Java bean for the first level looks like this:
public class ScreenDocument
{
public String ScreenID;
public String Lifetime_ms;
public Vector BugItem;
public Vector StaticTextItem;
public Vector DynamicTextItem;
public ScreenDocument()
{
BugItem = new Vector();
StaticTextItem = new Vector();
DynamicTextItem = new Vector();
}
public String getScreenID() { return ScreenID; }
public void setScreenID( String rhs ) { this.ScreenID = rhs; }
public String getLifetime_ms() { return Lifetime_ms; }
public void setLifetime_ms( String rhs ) { this.Lifetime_ms = rhs; }
...
The problem that I am encountering is that if I try to use
bean-property-setter-rule like this:
<?xml version="1.0"?>
<digester-rules>
<pattern value="Screen">
<object-create-rule classname="com.synergy.screendoc.ScreenDocument"
/>
<set-properties-rule/>
<bean-property-setter-rule pattern="ScreenID"/>
<bean-property-setter-rule pattern="Lifetime_ms"/>
I get the Digester exception that the bean has no property ScreenID.
Having a method that works I would normally just blow this off, but I don't
really want Lifetime_ms to be a String, I want it to be an "int". I would
be happy with it being a java.lang.Integer, but when I do something like
this:
<?xml version="1.0"?>
<digester-rules>
<pattern value="Screen">
<object-create-rule classname="com.synergy.screendoc.ScreenDocument"
/>
<call-method-rule pattern="ScreenID" methodname="setScreenID"
paramcount="0" />
<pattern value="Lifetime_ms">
<call-method-rule methodname="setLifetime_ms" paramcount="1"/>
<object-param-rule paramnumber='0' type="java.lang.Integer" />
</pattern>
...
And change the bean to have Lifetime_ms defined, set, and returned as type
Integer, Digester throws and exception and complains that setLifetime_ms is
not defined in my class.
I am at a loss for understanding why I am having this problem and suspect I
am doing something really dumb.
Can anyone please set me staight?
Thank you in advance.
Will
