.TH "globus_gram_job_manager_script_interface" 3 "Mon Apr 30 2012" "Version 13.33" "globus gram job manager" \" -*- nroff -*-
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.SH NAME
globus_gram_job_manager_script_interface \- Job Manager Scheduler Interface 
The GRAM Job Manager interfaces with the job filesystems and scheduler through scheduler-specific Perl modules\&.
.PP
GRAM provides several Perl modules which can be used to implement scheduler-specific interfaces to the GRAM Job Manager\&. These are: 
.IP "\fBGlobus::GRAM::Error  \fP" 1c
This module implements the GRAM error results as objects\&. Methods in this module will construct a GRAM error with the value matching the values in the GRAM Protocol library\&. A scheduler-specific JobManager module may return one of these objects from its methods to indicate errors to the Job Manager program\&.  
.IP "\fBGlobus::GRAM::JobState  \fP" 1c
This module defines the GRAM job state constants\&. A scheduler-specific JobManager module returns one of these values from its methods to indicate the managed job's current state\&.  
.IP "\fBGlobus::GRAM::JobSignal  \fP" 1c
This module defines the GRAM job signal constant values\&. The Job Manager uses these values to communicate which signal is being invoked in the manager's signal method\&.  
.IP "\fBGlobus::GRAM::JobManager  \fP" 1c
This module defines the actual implementatoin of the Job Manager scheduler interface\&. One writing a scheduler-specific GRAM interface will create a subclass of this object which overrides the default implementation's methods\&.  
.IP "\fBGlobus::GRAM::JobDescription  \fP" 1c
This module mimics the RSL job description using perl syntax\&. The job manager passes an object of this type to the JobManager modules's constructor\&. The job manager stores RSL and some configuration values in that JobDescription object\&. The manager accesses values stored in the JobDescription by invoking methods containing the RSL attribute's name (example: \fC$description->gram_my_job()\fP)\&. Method names are handled as if they were based on the canonical RSL representation of the attribute name\&. For example, the \fBgram_my_job\fP may be equivalently referred to as \fBGramMyJob\fP, \fBgrammyjob\fP, or \fBGRAM_My_Job\fP\&.  
.PP