1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
#!/usr/bin/ruby -I../.. -I../../../src
require 'bdbxml'
def value(manager, document, xpath, context)
doc = manager.prepare(xpath, context)
result = doc.execute(document, context).to_a
if result.size != 1
raise "Expected 1 got #{result.size}"
end
result[0]
end
def details(manager, name, query, context)
query = "collection('#{name}')#{query}"
puts "Exercising query '#{query}'"
print "Return to continue : "
STDIN.gets
results = manager.query(query, context)
puts "\n\tProduct : Price : Inventory Level"
results.each do |r|
r = r.to_document
item = value(manager, r, "/*/product/text()", context)
price = value(manager, r, "/*/inventory/price/text()", context)
inventory = value(manager, r, "/*/inventory/inventory/text()", context)
puts "\t#{item} : #{price} : #{inventory}"
end
puts
rescue
puts "Query #{query} failed : #{$!}"
end
options = {'home' => 'env', 'container' => 'name.xml'}
man = BDB::Env.new(options['home'], BDB::INIT_LOMP).manager
con = man.open_container(options['container'])
cxt = man.create_query_context
cxt.set_namespace("fruits", "http://groceryItem.dbxml/fruits")
cxt.set_namespace("vegetables", "http://groceryItem.dbxml/vegetables")
cxt.set_namespace("desserts", "http://groceryItem.dbxml/desserts");
details(man, con.name, "/fruits:item/product[text() = 'Zulu Nut']", cxt)
details(man, con.name, "/vegetables:item/product[starts-with(text(),'A')]", cxt)
|
