I am trying to build an XPath for a property that is constantly changing. The number prefix is bound to change sometimes.
Original:
//*[#id="MainContent_DXEditor3_I"]
which I can query using
$x('//*[#id="MainContent_DXEditor3_I"]
Intended use: I would like to build the string to handle any number in the sub-string. Example: if the property changes to 'MainContent_DXEditor33_I' or 'MainContent_DXEditor8_IXYZ' - I still want to be able to find the element without having to rebuild
You can try to relax the predicate by using starts-with() :
//*[#starts-with(#id, "MainContent_DXEditor")]
You should try to identify a unique parent of the element or save xpath as a string that contains a variable.
These are the 2 possible solutions.
A general selector will return multiple elements, if you identify a unique parent then you are closer and after that you can select any first, second.. last if you have a list.
I have an XML file that I am trying to parse and process in PL/SQL. Everything has been solvable up to this point. I have a node where I need to get some information that isn't in the leaf.
<Division_Description Descriptor="00 Office">
<ID>788758885</ID>
</Division_Description>
I need the value from "descriptor". I am using EXTRACTVALUE() to parse most of the nodes that I need. If I use
EXTRACT(Value(p),'/Division_Description').getStringVal() as v_DIVISON_DESCRIPTION,
I get the above little XML.
I tried using #descriptor at the end of the extract and extractvalue functions (as in extract(..., '.../Division_Description#Descriptor') but that resulted in an exception.
How do I get the Descriptor?
You were close. Try this:
/Division_Description/#Descriptor
I'm having difficulties as to how I should parse this kind of csv file.
For example:
06:16 PM,7,299,http://cdn.worldweatheronline.net/images/wsymbols01_png_64/wsymbol_0026_heavy_rain_showers_night.png,Moderate rain at times,14,22,180,S,3.1,81,10,993,75
2014-01-31,9,48,3,38,22,35,176,S,119,http://cdn.worldweatheronline.net/images/wsymbols01_png_64/wsymbol_0003_white_cloud.png,Cloudy,6.0
2014-02-01,7,45,3,37,19,30,220,SW,113,http://cdn.worldweatheronline.net/images/wsymbols01_png_64/wsymbol_0001_sunny.png,Sunny,2.2
2014-02-02,9,47,3,37,17,27,236,SW,113,http://cdn.worldweatheronline.net/images/wsymbols01_png_64/wsymbol_0001_sunny.png,Sunny,0.0
2014-02-03,8,46,3,37,21,34,152,SSE,116,http://cdn.worldweatheronline.net/images/wsymbols01_png_64/wsymbol_0002_sunny_intervals.png,Partly Cloudy,1.8
2014-02-04,9,48,3,38,20,32,191,SSW,263,http://cdn.worldweatheronline.net/images/wsymbols01_png_64/wsymbol_0009_light_rain_showers.png,Patchy light drizzle,1.4
"London","United Kingdom","City Of London, Greater London",51.517,-0.106,7421228,http://www.worldweatheronline.com/London-weather/City-of-London-Greater-London/GB.aspx
For example, I need to get the first two values on the first line, all the values on the 2nd to 6th line, and the first value of the 7th line.
I currently have a model class with properties for all the values I need to get.
I'm not sure how to do it in this situation. So far, I know how to parse that csv (if I didn't need to get the first two values on the 1st line, and the first value of the 7th line)
What would be the logic to parse in this situation? Hope you guys can give me some idea how to do it.
Thanks
Split the string into lines (busing a scanner or array method depending on how big the string is). Once you have your lines, takes the special ones and pass to appropriate methods to extract the required values. Likewise for the main lines.
You can use your parser on each line individually or use a scanner or array method if that's easier depending on what content you need to extract and where it is.
In String Template one can easily get an element of a Java Map within the template.
Is it possible to get the n-th element of an array in a similar way?
According to the String Template Cheat Sheet you can easily get the first or second element:
You can combine operations to say things like first(rest(names)) to get second element.
but it doesn't seem possible to get the n-th element easily. I usually transform my list into a map with list indexes as keys and do something like
map.("25")
Is there some easier/more straightforward way?
Sorry, there is no mechanism to get a[i].
There is no easy way getting n-th element of the list.
In my opinion this indicates that your view and business logic are not separated enough: knowledge of what magic number 25 means is spread in both tiers.
One possible solution might be converting list of values to object which provides meaning to the elements. For example, lets say list of String represents address lines, in which case instead of map.("3") you would write address.street.
I'm extracting terms from the query calling ExtractTerms() on the Query object that I get as the result of QueryParser.Parse(). I get a HashTable, but each item present as:
Key - term:term
Value - term:term
Why are the key and the value the same? And more why is term value duplicated and separated by colon?
Do highlighters only insert tags or to do anything else? I want not only to get text fragments but to highlight the source text (it's big enough). I try to get terms and by offsets to insert tags by hand. But I worry if this is the right solution.
I think the answer to this question may help.
It is because .Net 2.0 doesnt have an equivalent to java's HashSet. The conversion to .Net uses Hashtables with the same value in key/value. The colon you see is just the result of Term.ToString(), a Term is a fieldname + the term text, your field name is probably "term".
To highlight an entire document using the Highlighter contrib, use the NullFragmenter