Re: JXPath and LazyDynaBeans
The code above should work, returning a number of absolute pointers to
'car'. You can copy/past it if you feel like it.
I'd expect to see something printed out like:
Got pointer: /car[0]
Got pointer: /car[1]
Got pointer: /car[2]
:'(
On Sat, Nov 22, 2008 at 5:15 AM, Niall Pemberton
[EMAIL PROTECTED]wrote:
On Thu, Nov 20, 2008 at 12:10 AM, Andrew Hughes [EMAIL PROTECTED]
wrote:
Hi All,
There are so many options here, I'm not sure which one is the
easiest/best
solution. I've got a data structure which I am using to populate (a
hierarchy of) LazyDynaBean's so that we can run JXPath across it. It's
working perfectly, until I try and introduce duplicate key entries (i.e.
a
node can have 1 children of the same name).
My example heirarchy I wish to build is this...
/
/car='Ferrari'
/car='Porsche'
/car=Lamborghini'
In xml it might look like...
root
carFerrari/car
carPorsche/car
carLamborghini/car
/root
Anyway, to cut to the chase. I have multiple 'car' property entries and I
am
trying to run the follwing code:
LazyDynaBean lazyDynaBean = new LazyDynaBean();
JXPathContext jxPathContext = JXPathContext.newContext(lazyDynaBean);
lazyDynaBean.set(car,0, Ferrari);
lazyDynaBean.set(car,1, Porsche);
lazyDynaBean.set(car,2, Lamborghini);
Iterator i = jxPathContext.iteratePointers(car);
while(i.hasNext()){
System.out.println(Got pointer: +i.next().toString());
}
The error is:
Exception in thread main java.lang.ArrayIndexOutOfBoundsException: 0
at
org.apache.commons.jxpath.ri.model.dynabeans.DynaBeanPropertyPointer.getPropertyNames(DynaBeanPropertyPointer.java:84)
at
org.apache.commons.jxpath.ri.model.beans.PropertyIterator.prepareForIndividualProperty(PropertyIterator.java:270)
at
org.apache.commons.jxpath.ri.model.beans.PropertyIterator.setPositionIndividualProperty(PropertyIterator.java:154)
at
org.apache.commons.jxpath.ri.model.beans.PropertyIterator.setPosition(PropertyIterator.java:139)
at
org.apache.commons.jxpath.ri.axes.ChildContext.setPosition(ChildContext.java:101)
at
org.apache.commons.jxpath.ri.axes.ChildContext.nextNode(ChildContext.java:87)
at
org.apache.commons.jxpath.ri.EvalContext.performIteratorStep(EvalContext.java:155)
at org.apache.commons.jxpath.ri.EvalContext.hasNext(EvalContext.java:115)
at rnd.JXPathRND.App.main(App.java:24)
How am I supposed to populate the DynaBean so that it can contain more
than
one 'car' property?
I would have expected the lazy DynaBean to contain a list of Strings -
I would check if it does. If it does then the issue is in JXPath.
Niall
Also, I would prefer not to have to specify the index 0,1,2 if that is at
all possible.
Thanks in advance.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: JXPath and LazyDynaBeans
On Thu, Nov 20, 2008 at 12:10 AM, Andrew Hughes [EMAIL PROTECTED] wrote:
Hi All,
There are so many options here, I'm not sure which one is the easiest/best
solution. I've got a data structure which I am using to populate (a
hierarchy of) LazyDynaBean's so that we can run JXPath across it. It's
working perfectly, until I try and introduce duplicate key entries (i.e. a
node can have 1 children of the same name).
My example heirarchy I wish to build is this...
/
/car='Ferrari'
/car='Porsche'
/car=Lamborghini'
In xml it might look like...
root
carFerrari/car
carPorsche/car
carLamborghini/car
/root
Anyway, to cut to the chase. I have multiple 'car' property entries and I am
trying to run the follwing code:
LazyDynaBean lazyDynaBean = new LazyDynaBean();
JXPathContext jxPathContext = JXPathContext.newContext(lazyDynaBean);
lazyDynaBean.set(car,0, Ferrari);
lazyDynaBean.set(car,1, Porsche);
lazyDynaBean.set(car,2, Lamborghini);
Iterator i = jxPathContext.iteratePointers(car);
while(i.hasNext()){
System.out.println(Got pointer: +i.next().toString());
}
The error is:
Exception in thread main java.lang.ArrayIndexOutOfBoundsException: 0
at
org.apache.commons.jxpath.ri.model.dynabeans.DynaBeanPropertyPointer.getPropertyNames(DynaBeanPropertyPointer.java:84)
at
org.apache.commons.jxpath.ri.model.beans.PropertyIterator.prepareForIndividualProperty(PropertyIterator.java:270)
at
org.apache.commons.jxpath.ri.model.beans.PropertyIterator.setPositionIndividualProperty(PropertyIterator.java:154)
at
org.apache.commons.jxpath.ri.model.beans.PropertyIterator.setPosition(PropertyIterator.java:139)
at
org.apache.commons.jxpath.ri.axes.ChildContext.setPosition(ChildContext.java:101)
at
org.apache.commons.jxpath.ri.axes.ChildContext.nextNode(ChildContext.java:87)
at
org.apache.commons.jxpath.ri.EvalContext.performIteratorStep(EvalContext.java:155)
at org.apache.commons.jxpath.ri.EvalContext.hasNext(EvalContext.java:115)
at rnd.JXPathRND.App.main(App.java:24)
How am I supposed to populate the DynaBean so that it can contain more than
one 'car' property?
I would have expected the lazy DynaBean to contain a list of Strings -
I would check if it does. If it does then the issue is in JXPath.
Niall
Also, I would prefer not to have to specify the index 0,1,2 if that is at
all possible.
Thanks in advance.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
JXPath and LazyDynaBeans
Hi All,
There are so many options here, I'm not sure which one is the easiest/best
solution. I've got a data structure which I am using to populate (a
hierarchy of) LazyDynaBean's so that we can run JXPath across it. It's
working perfectly, until I try and introduce duplicate key entries (i.e. a
node can have 1 children of the same name).
My example heirarchy I wish to build is this...
/
/car='Ferrari'
/car='Porsche'
/car=Lamborghini'
In xml it might look like...
root
carFerrari/car
carPorsche/car
carLamborghini/car
/root
Anyway, to cut to the chase. I have multiple 'car' property entries and I am
trying to run the follwing code:
LazyDynaBean lazyDynaBean = new LazyDynaBean();
JXPathContext jxPathContext = JXPathContext.newContext(lazyDynaBean);
lazyDynaBean.set(car,0, Ferrari);
lazyDynaBean.set(car,1, Porsche);
lazyDynaBean.set(car,2, Lamborghini);
Iterator i = jxPathContext.iteratePointers(car);
while(i.hasNext()){
System.out.println(Got pointer: +i.next().toString());
}
The error is:
Exception in thread main java.lang.ArrayIndexOutOfBoundsException: 0
at
org.apache.commons.jxpath.ri.model.dynabeans.DynaBeanPropertyPointer.getPropertyNames(DynaBeanPropertyPointer.java:84)
at
org.apache.commons.jxpath.ri.model.beans.PropertyIterator.prepareForIndividualProperty(PropertyIterator.java:270)
at
org.apache.commons.jxpath.ri.model.beans.PropertyIterator.setPositionIndividualProperty(PropertyIterator.java:154)
at
org.apache.commons.jxpath.ri.model.beans.PropertyIterator.setPosition(PropertyIterator.java:139)
at
org.apache.commons.jxpath.ri.axes.ChildContext.setPosition(ChildContext.java:101)
at
org.apache.commons.jxpath.ri.axes.ChildContext.nextNode(ChildContext.java:87)
at
org.apache.commons.jxpath.ri.EvalContext.performIteratorStep(EvalContext.java:155)
at org.apache.commons.jxpath.ri.EvalContext.hasNext(EvalContext.java:115)
at rnd.JXPathRND.App.main(App.java:24)
How am I supposed to populate the DynaBean so that it can contain more than
one 'car' property?
Also, I would prefer not to have to specify the index 0,1,2 if that is at
all possible.
Thanks in advance.
