大约有 6,261 项符合查询结果（耗时：0.0173秒） [XML]
How do you create a Distinct query in HQL
...anged to protect identities)
String queryString = "select distinct f from Foo f inner join foo.bars as b" +
" where f.creationDate >= ? and f.creationDate < ? and b.bar = ?";
return getHibernateTemplate().find(queryString, new Object[] {startDate, endDate, bar});
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Key existence check in HashMap
...
Do you ever store a null value? If not, you can just do:
Foo value = map.get(key);
if (value != null) {
...
} else {
// No such key
}
Otherwise, you could just check for existence if you get a null value returned:
Foo value = map.get(key);
if (value != null) {
...
} ...
List vs List
...>
So:
void withWilds( List<? extends Map<String,String>> foo ){}
void noWilds( List<Map<String,String>> foo ){}
void main( String[] args ){
List<HashMap<String,String>> myMap;
withWilds( myMap ); // Works
noWilds( myMap ); // Compiler error
}
...
Collapse sequences of white space into a single character and trim string
...ling spaces, and eliminate all of them. it won't deal with "hello foo"
– Brian Postow
Sep 15 '09 at 14:09
2
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Generic htaccess redirect www to non-www
...ut this flag, apache will change the requested URL http://www.example.com/?foo%20bar to http://www.example.com/?foo%2250bar
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Read environment variables in Node.js
...
this also works for assigning variables. process.env.FOO = "foo"; works.
– chicks
Sep 11 '15 at 17:16
16
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http to https apache redirection
...he VirtualHost file. It is the recommended method.
– foochow
Sep 25 '13 at 23:54
4
After changing...
List files with certain extensions with ls and grep
...
When I run ls foo*.{tar.gz,zip} directly in a shell it works, but when put this inside a shell script latest=$(ls -I '.done' -tr ${pkgprefix}.{tar.gz,zip} | tail -1) I got an error message: ls: cannot access 'bamtools*.{tar.gz,zip}': No s...
.htaccess rewrite to redirect root URL to subdirectory
...xample.com/
to
http://example.com/subfolder
And
http://example.com/foo
to
http://example.com/subfolder/foo
while the browser will stay on the root folder.
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Difference between global and device functions
...l settings. You can also "overload" a function, e.g : you can declare void foo(void) and __device__ foo (void), then one is executed on the host and can only be called from a host function. The other is executed on the device and can only be called from a device or kernel function.
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