public class FetchRequest extends Object
You cannot create FetchRequest
directly (no public constructor
is provided). Use createFetchRequest()
method of your RrdDb
object.
Constructor and Description |
---|
FetchRequest(RrdDb parentDb,
String consolFun,
long fetchStart,
long fetchEnd,
long resolution) |
Modifier and Type | Method and Description |
---|---|
String |
dump()
Dumps the content of fetch request using the syntax of RRDTool's fetch command.
|
FetchData |
fetchData()
Returns data from the underlying RRD and puts it in a single
FetchData object. |
String |
getConsolFun()
Returns consolitation function to be used during the fetch process.
|
long |
getFetchEnd()
Returns ending timestamp to be used for the fetch request.
|
long |
getFetchStart()
Returns starting timestamp to be used for the fetch request.
|
String[] |
getFilter()
Returns request filter.
|
RrdDb |
getParentDb()
Returns the underlying RrdDb object.
|
long |
getResolution()
Returns fetch resolution to be used for the fetch request.
|
(package private) String |
getRrdToolCommand() |
void |
setFilter(Set<String> filter)
Sets request filter in order to fetch data only for
the specified set of datasources (datasource names).
|
void |
setFilter(String filter)
Sets request filter in order to fetch data only for
a single datasource (datasource name).
|
void |
setFilter(String[] filter)
Sets request filter in order to fetch data only for
the specified array of datasources (datasource names).
|
public FetchRequest(RrdDb parentDb, String consolFun, long fetchStart, long fetchEnd, long resolution) throws RrdException
RrdException
public void setFilter(String[] filter)
filter
- Array of datsources (datsource names) to fetch data from.public void setFilter(Set<String> filter)
filter
- Set of datsource names to fetch data for.public void setFilter(String filter)
filter
- Array of datsources (datsource names) to fetch data from.public String[] getFilter()
setFilter()
for
complete explanation.public String getConsolFun()
public long getFetchStart()
public long getFetchEnd()
public long getResolution()
public String dump()
String getRrdToolCommand()
public FetchData fetchData() throws RrdException, IOException
FetchData
object.RrdException
- Thrown in case of JRobin specific error.IOException
- Thrown in case of I/O error.public RrdDb getParentDb()