java.lang.Object | |
↳ | org.rrd4j.core.Header |
Class to represent RRD header. Header information is mainly static (once set, it cannot be changed), with the exception of last update time (this value is changed whenever RRD gets updated).
Normally, you don't need to manipulate the Header object directly - Rrd4j framework does it for you.
Public Methods | |||||||||||
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Copies object's internal state to another Header object.
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Returns the number of archives defined in the RRD.
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Returns the number of datasources defined in the RRD.
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Returns the last update time of the RRD.
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Required to implement RrdUpdater interface.
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Returns the underlying storage (backend) object which actually performs all
I/O operations.
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Returns RRD signature.
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Returns primary RRD time step.
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Return the RRD version.
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Inherited Methods | |||||||||||
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Copies object's internal state to another Header object.
other | New Header object to copy state to |
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IOException | Thrown in case of I/O error |
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Returns the number of archives defined in the RRD.
IOException | Thrown in case of I/O error |
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Returns the number of datasources defined in the RRD.
IOException | Thrown in case of I/O error |
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Returns the last update time of the RRD.
IOException | Thrown in case of I/O error |
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Required to implement RrdUpdater interface. You should never call this method directly.
Returns the underlying storage (backend) object which actually performs all I/O operations.
Returns RRD signature. Initially, the returned string will be of the form Rrd4j, version x.x.
IOException | Thrown in case of I/O error |
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Returns primary RRD time step.
IOException | Thrown in case of I/O error |
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