Overview

The Multiple Charts plugin displays data in up to 20 charts. Only the number of charts configured will be displayed. This plugin subscribes (see configuration for subscribesTo) to any number of other publishing plugins, and can peform computations against that data before plotting to charts. Charts are highly configurable including the number of plots per chart and many display properties. As with many plugins, this plugin supports the JADE Expression Language in many places, such as allowing computations using subscription data when defining plot data. See the configuration documentation below and/or the example editor for further details.

User Interface

The Mulitple Charts interface is also highly configurable in terms of the number of charts, the size of each chart, and the size of the panel which houses them. If the synchronizeChartYScales option is set then changing one chart’s y-scale will force all other charts’ y-scales to match. The following shows an example interface with several evenly-spaced, identically-sized charts.


Of course, if only one chart is needed you can simply configure a single chart of whatever size is desired:


Annotations

The Mulitple Charts interface supports current-value annotations on a per plot basis. This is useful when plotting data where neither of the axes represents time. In such cases, as data accumulates, it can be challenging to identify on the chart which point represents the current or most recent point. Annotations provide a heads-up visual indication of which point on the chart was just plotted and is individually configurable for each plot.


Annotations consist of:

  1. a point which draws over the most recent data point (shape and other features are configurable)
  2. optionally showing a label containing the value of the point in the form (x, y) (the location of this label is configurable)
  3. optionally rendering an arrow pointing from the annotated point to the label

Below is an example of the annotation configuration for a given plot:

{
    "enable": true,  // <-- whether to display the annotation or any of its features at all

    "color": { "r": 0, "g": 0, "b": 0 }, // the color used to render the annotation point, label, and arrow
    "pointStyle": "circleFull", // <-- the point style to use for the annotation point
    "pointDecoration": "dashBoth", // <-- the decoration to use for the annotation point

    "showLabel": true, // <-- whether to show the label (i.e. the actual 9x, y) coordinate values for the annotation point
    "label": {
        "xValueFormat": "%.2f", // <-- the format of the x-coordinate if the label is shown
        "yValueFormat": "%.2f", // <-- the format of the y-coordinate if the label is shown
        "anchorPosition": "TopCenter", // <-- where to anchor the label on the chart
        "padding": { "x": 25, "y": 25 } // <-- the padding to apply to the label to offset it from the chart boundariesor annotation point
    },

    "showArrow": false // <-- whether to show an arrow from the label pointing at the annotation point
}

Note that the xValueFormat and yValueFormat are both number formats for which the Format String Syntax is applicable.

Configuration Example

Plugin Defaults
0
0
0

Configuration Details

Filter:Search in:
ROOT object
This top level object holds all configuration information for this plugin.
Required: true
Default: (not specified; see any element defaults within)
subscribesTo array
An array of plugin instance names corresponding to plugin instances which will be subscribed to by this plugin instance.
Required: true
Default: 
[]
subscribesTo[n] string
A plugin instance name (corresponding to a plugin you wish to subscribe to) or a topic published by the worker (ex. __PLUGIN_INFO__).
Required: false
Default: ""
options object
Configuration options specific to this plugin. Note that variables and expressions are generally allowed in this section.
Required: true
Default: (not specified; see any element defaults within)
options.samplePeriod integer
The period in milliseconds at which we compute new values and update all charts.
Required: true
Default: 1000
options.synchronizeChartYScales boolean
Whether to synchronize the y-scales for all charts. If true, changing any chart's y-scale at run-time will force the other charts' y-scales to match.
Required: true
Default: false
options.computations object
Defines computations to be performed on 1. initialization, 2. on subscription data arrival, and 3. at every sample period just before graph values are reevaluated. In general, keys in the subobjects below become variables in the VAR namespace with their corresponding values. We call these "computation objects". For example, {"myVar": 3, "myRand": "Float:(RAND(0, 10) + 0.5)"} defines variables accessible as @VAR{myVar} with value 3 and @VAR{myRand} with a value equal to a random number between 0.5 and 10.5. As shown in the example, the expression language is allowed here as well.
Required: true
Default: (not specified; see any element defaults within)
options.computations.initializations object
A computation object where keys are JSON paths and values can be of any type and use expressions and functions, and is computed one time when the plugin launches. For example: { "exmapleVar1": 10, "exampleVar2": "kitty" } would make available variables @VAR{exampleVar1} with value 10 and @VAR{exampleVar2} with value "kitty".
Required: true
Default: 
{
    "exmapleVar1": 10,
    "exmapleVar2": "kitty"
}
options.computations.initializations.{Valid JSON Set Path} stringnumberbooleanarrayobject
undefined
Required: false
Default: ""
options.computations.subscriptions object
A object where top level keys are plugin instance names corresponding to subscriptions defined in the "subscribeTo" portion of this plugin's configuration, and whose values are computation objects where keys are JSON paths and values can be of any type and use expressions and functions. Under each such computation object, the corresponding subscription data is under a SUB namespace. For example, if subscribesTo was ["Example Publisher"] and Example Publisher was some plugin which published data {"speed": 100, "distance": 1200} then the following would be a valid value here: { "Example Publisher": { "actualSpeed": "Float:( 10 * @SUB{speed} )", "actualDistance": "Float:( 10 * @SUB{distance} )" } }.
Required: true
Default: 
{
    "My Plugin Instance": {}
}
options.computations.subscriptions.{Plugin Instance Name} object
undefined
Required: false
Default: (not specified; see any element defaults within)
options.computations.subscriptions.{Plugin Instance Name}.{Valid JSON Set Path} stringnumberbooleanarrayobject
undefined
Required: false
Default: ""
options.computations.intermediates array
An array of computation objects to be performed every samplePeriod milliseconds. These computations are performed in order, just before evaluating / updating charts. Any previously computed values are available here, though beware that these computations may occur one or more times before receiving some subscription data (and thus before any "subscriptions" computations are performed), depending on both the samplePeriod and when subscription data arrives. If all variables used in comptuations here have been initialized in the "initializations" computation object, then they are guaranteed to have a value.
Required: true
Default: 
[]
options.computations.intermediates[n] object
A computation object where keys are JSON paths and values can be of any type and use expressions and functions.
Required: false
Default: (not specified; see any element defaults within)
options.computations.intermediates[n].{Valid JSON Set Path} stringnumberbooleanarrayobject
undefined
Required: false
Default: ""
options.charts array
An array of chart objects where each chart object includes properties (ex. label, position, axes information, etc.) and plots (an array of plot objects). Charts defined here will display on the user interface in the specified positions, sizes, and other properties. This plugin currently allows up to 20 charts. For additional charts consider using another instance of this plugin.
Required: true
Default: 
[]
options.charts[n] object
An object definiting a chart including its properties and plots.
Required: false
Default: (not specified; see any element defaults within)
options.charts[n].properties object
An object definiting the chart properties.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].properties.label string
The label to display on the chart.
Required: true
Default: "My Plot Name"
options.charts[n].properties.position object
The position at which to place the chart.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].properties.position.top integer
The vertical position of the chart specified in number of pixels from the top of the window.
Required: true
Default: 0
options.charts[n].properties.position.left integer
the horizontal position of the chart specified in number of pixels from the left of the window.
Required: true
Default: 0
options.charts[n].properties.xAxis object
The x-axis properties.
Required: true
Default: 
{
    "label": "x-axis",
    "format": "%d",
    "flipped": false,
    "min": 0,
    "max": 10,
    "increment": 1,
    "autoscale": "on"
}
options.charts[n].properties.xAxis::{Specify Min/Max/Autoscale} object
This configuration for the x-axis requires configuring label, format, flipped, min, max, increment, and autoscale.
Required: false
Default: (not specified; see any element defaults within)
options.charts[n].properties.xAxis::{Specify Min/Max/Autoscale}.label string
The x-axis label to display.
Required: true
Default: "x-axis"
options.charts[n].properties.xAxis::{Specify Min/Max/Autoscale}.format string
A string defining the x-axis format.
Required: true
Default: "%d"
options.charts[n].properties.xAxis::{Specify Min/Max/Autoscale}.flipped boolean
Whether to flip the x-axis (ex. if true, instead of rendering 0 on the left and 10 on the right of the x-axis, it would render 0 on the right and 10 on the left.
Required: true
Default: false
options.charts[n].properties.xAxis::{Specify Min/Max/Autoscale}.min number
The x-axis min value.
Required: true
Default: 0
options.charts[n].properties.xAxis::{Specify Min/Max/Autoscale}.max number
The x-axis max value.
Required: true
Default: 10
options.charts[n].properties.xAxis::{Specify Min/Max/Autoscale}.increment number
The x-axis increment used to display x-axis tick marks.
Required: true
Default: 1
options.charts[n].properties.xAxis::{Specify Min/Max/Autoscale}.autoscale enum (string)
Whether to autoscale the x-axis. The value "on" autoscales on every update, "off" never autoscales, and "once" autoscales just once when data is first rendered.
Required: true
Default: "on"
Enum Items: "on" | "off" | "once"
options.charts[n].properties.xAxis::{Specify Duration} object
This configuration for the x-axis required configuring label, format, duration, and numTicks.
Required: false
Default: (not specified; see any element defaults within)
options.charts[n].properties.xAxis::{Specify Duration}.label string
The x-axis label to display.
Required: true
Default: "x-axis"
options.charts[n].properties.xAxis::{Specify Duration}.format string
A string defining the x-axis format.
Required: true
Default: "%d"
options.charts[n].properties.xAxis::{Specify Duration}.duration number
The time duration in seconds to display on the x-axis.
Required: true
Default: 0
options.charts[n].properties.xAxis::{Specify Duration}.numTicks number
The number of ticks to show on the x-axis.
Required: true
Default: 0
options.charts[n].properties.yAxis object
The y-axis properties.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].properties.yAxis.label string
The y-axis label to display.
Required: true
Default: "y-axis"
options.charts[n].properties.yAxis.flipped boolean
Whether to flip the y-axis (ex. if true, instead of rendering 0 on the bottom and 10 on the top of the y-axis, it would render 0 on the top and 10 on the bottom.
Required: true
Default: false
options.charts[n].properties.yAxis.min number
The y-axis min value.
Required: true
Default: 0
options.charts[n].properties.yAxis.max number
The y-axis max value.
Required: true
Default: 10
options.charts[n].properties.yAxis.increment number
The y-axis increment used to display y-axis tick marks.
Required: true
Default: 1
options.charts[n].properties.yAxis.format string
A string defining the y-axis format.
Required: true
Default: "%d"
options.charts[n].properties.yAxis.autoscale enum (string)
Whether to autoscale the y-axis. The value "on" autoscales on every update, "off" never autoscales, and "once" autoscales just once when data is first rendered.
Required: true
Default: "on"
Enum Items: "on" | "off" | "once"
options.charts[n].properties.plotArea object
The plot area properties.
Required: false
Default: (not specified; see any element defaults within)
options.charts[n].properties.plotArea.fgColor object
The plot area foreground color specified as an RGB value.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].properties.plotArea.fgColor.r integer
The red component of the RGB color definition.
Required: true
Default: 255
options.charts[n].properties.plotArea.fgColor.g integer
The green component of the RGB color definition.
Required: true
Default: 255
options.charts[n].properties.plotArea.fgColor.b integer
The blue component of the RGB color definition.
Required: true
Default: 255
options.charts[n].properties.plotArea.bgColor object
The plot area background color specified as an RGB value.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].properties.plotArea.bgColor.r integer
The red component of the RGB color definition.
Required: true
Default: 250
options.charts[n].properties.plotArea.bgColor.g integer
The green component of the RGB color definition.
Required: true
Default: 250
options.charts[n].properties.plotArea.bgColor.b integer
The blue component of the RGB color definition.
Required: true
Default: 250
options.charts[n].properties.plotArea.size object
The size of the plot area specified as width and height in pixels.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].properties.plotArea.size.width integer
The width of the plot area in pixels.
Required: true
Default: 500
options.charts[n].properties.plotArea.size.height integer
The height of the plot area in pixels.
Required: true
Default: 300
options.charts[n].plots array
An array of plot objects which define plot properties and data.
Required: true
Default: 
[
    {
        "properties": {
            "label": "",
            "position": {
                "top": 12,
                "left": 12
            },
            "xAxis": {
                "label": "Random X",
                "flipped": false,
                "min": 0,
                "max": 1,
                "increment": 1,
                "format": "%#.5f",
                "autoscale": "off"
            },
            "yAxis": {
                "label": "Random Y",
                "flipped": false,
                "min": 0,
                "max": 1.25,
                "increment": 1,
                "format": "%#.5f",
                "autoscale": "off"
            },
            "plotArea": {
                "fgColor": {
                    "r": 255,
                    "g": 255,
                    "b": 255
                },
                "bgColor": {
                    "r": 250,
                    "g": 250,
                    "b": 250
                },
                "size": {
                    "width": 141,
                    "height": 233
                }
            }
        },
        "plots": [
            {
                "name": "Simulated Data",
                "historyLength": 100,
                "data": {
                    "x": "Float:RAND(0,1)",
                    "y": "Float:RAND(0,1)"
                },
                "properties": {
                    "visible": true,
                    "antiAlias": false,
                    "pointStyle": "circleFull",
                    "lineStyle": "solid",
                    "lineWidth": "2",
                    "fillTo": "none",
                    "interpolation": "none",
                    "lineColor": "auto",
                    "pointColor": "auto"
                },
                "annotation": {
                    "enable": true,
                    "showLabel": true,
                    "showArrow": false,
                    "color": {
                        "r": 0,
                        "g": 0,
                        "b": 0
                    },
                    "pointStyle": "circleFull",
                    "pointDecoration": "dashBoth",
                    "label": {
                        "xValueFormat": "%.5f",
                        "yValueFormat": "%.5f",
                        "anchorPosition": "TopCenter",
                        "padding": {
                            "x": 0,
                            "y": 20
                        }
                    }
                }
            }
        ]
    }
]
options.charts[n].plots[n] object
An object defining a plot.
Required: false
Default: (not specified; see any element defaults within)
options.charts[n].plots[n].name string
The name of the plot.
Required: true
Default: "My Plot"
options.charts[n].plots[n].historyLength integer
The number of data points to store and render for this plot.
Required: true
Default: 100
options.charts[n].plots[n].data object
An object defining x and y values which make up a point in this plot on the chart. VAR namespace variables are available when defining x and y.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].plots[n].data.x stringnumber
The value of the x-coordinate to compute at the samplePeriod. VAR namespace variables are available here.
Required: true
Default: 0
options.charts[n].plots[n].data.y stringnumber
The value of the y-coordinate to compute at the samplePeriod. VAR namespace variables are available here.
Required: true
Default: 0
options.charts[n].plots[n].annotation object
An object defining how to annotate the most recent data point in the plot. Annotations consist of several parts, some of which are optional: point, point decoration, and the annotation value (which is the most recent plot value).
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].plots[n].annotation.enable boolean
Whether to render an annotation on the most recent data point in the plot.
Required: true
Default: false
options.charts[n].plots[n].annotation.showLabel boolean
Whether to also display the x and y values of the annotated point.
Required: true
Default: true
options.charts[n].plots[n].annotation.showArrow boolean
Whether to draw an arrow from the label to the corresponding (most recent plotted) data point.
Required: true
Default: false
options.charts[n].plots[n].annotation.color object
The color to use for plot points specified as an RGB value.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].plots[n].annotation.color.r integer
The red component of the RGB color definition.
Required: true
Default: 100
options.charts[n].plots[n].annotation.color.g integer
The green component of the RGB color definition.
Required: true
Default: 100
options.charts[n].plots[n].annotation.color.b integer
The blue component of the RGB color definition.
Required: true
Default: 100
options.charts[n].plots[n].annotation.pointStyle enum (string)
The annotation point style such as a circle vs a square.
Required: true
Default: "circleFull"
Enum Items: "none" | "circleEmpty" | "circleFull" | "circleFullDot" | "circleEmptyDot" | "squareEmpty" | "squareFull" | "squareFullDot" | "squareEmptyDot" | "squareFullSmall" | "dot" | "cross" | "crossSmall" | "X" | "x" | "diamondFullDot" | "squareEmptySmall"
options.charts[n].plots[n].annotation.pointDecoration enum (string)
The decoration to use on the anntation point, such as putting crosshair-like dashes on the annotation point.
Required: true
Default: "dashBoth"
Enum Items: "none" | "dashVertical" | "dashHorizontal" | "dashBoth" | "lineVertical" | "lineHorizontal" | "lineBoth" | "dashVerticalLineHorizontal" | "dashHorizontalLineVertical"
options.charts[n].plots[n].annotation.label object
An object defining how to render the annotation label.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].plots[n].annotation.label.xValueFormat string
A format string specifying how to display the annotation x-value.
Required: true
Default: "%.2f"
options.charts[n].plots[n].annotation.label.yValueFormat string
A format string specifying how to display the annotation y-value.
Required: true
Default: "%.2f"
options.charts[n].plots[n].annotation.label.anchorPosition enum (string)
The anchor position of the label. The padding will apply relative to this selected anchor position.
Required: true
Default: "Point"
Enum Items: "Point" | "TopLeft" | "TopCenter" | "TopRight" | "BottomLeft" | "BottomCenter" | "BottomRight" | "MiddleLeft" | "MiddleRight"
options.charts[n].plots[n].annotation.label.padding object
An object defining x and y padding in pixels, relative to the anchorPosition, at which to render the annotation label. Positive means move inward on the graph from the anchor position.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].plots[n].annotation.label.padding.x integer
The x-padding in pixels relative to the anchor position.
Required: true
Default: 0
options.charts[n].plots[n].annotation.label.padding.y integer
The y-padding in pixels relative to the anchor position.
Required: true
Default: 20
options.charts[n].plots[n].properties object
An object defining the plot properties.
Required: true
Default: (not specified; see any element defaults within)
options.charts[n].plots[n].properties.visible boolean
Whether the plot is visible in the chart.
Required: true
Default: true
options.charts[n].plots[n].properties.antiAlias boolean
Whether the apply antiAliasing when rendering the plot.
Required: true
Default: true
options.charts[n].plots[n].properties.pointStyle enum (string)
The point style to use for the plot.
Required: true
Default: "circleFull"
Enum Items: "none" | "circleEmpty" | "circleFull" | "circleFullDot" | "circleEmptyDot" | "squareEmpty" | "squareFull" | "squareFullDot" | "squareEmptyDot" | "squareFullSmall" | "dot" | "cross" | "crossSmall" | "X" | "x" | "diamondFullDot" | "squareEmptySmall"
options.charts[n].plots[n].properties.lineStyle enum (string)
The line style to use for the plot.
Required: true
Default: "solid"
Enum Items: "solid" | "dash" | "dot" | "dashdot" | "dashdotdot"
options.charts[n].plots[n].properties.lineWidth enum (string)
The line width to use for the plot.
Required: true
Default: "1"
Enum Items: "0" | "1" | "2" | "3" | "4" | "5"
options.charts[n].plots[n].properties.fillTo enum (string)
The color fill approach to use for the plot. For example, "below" would apply the line color to the area below the plot in the chart.
Required: true
Default: "none"
Enum Items: "none" | "zero" | "below" | "above"
options.charts[n].plots[n].properties.interpolation enum (string)
The interpolation strategy to apply between points.
Required: true
Default: "none"
Enum Items: "none" | "stepwiseVertical" | "linear" | "stepwiseHorizontal" | "stepwiseHorizontalCentered" | "stepwiseVerticalCentered"
options.charts[n].plots[n].properties.lineColor objectstring
The color to use for the plot line specified as an RGB value.
Required: true
Default: "auto"
options.charts[n].plots[n].properties.pointColor objectstring
The color to use for plot points specified as an RGB value.
Required: true
Default: "auto"
options.logger object
Defines the logging (data and errors) for this plugin. Note that a LOG variable space is provided here, as well as the VAR variable space. Available variables are: @LOG{LOGGERNAME}, @LOG{TIMESTAMP}, @LOG{LOGMESSAGE}, @LOG{ERRORMESSAGE}, and @VAR{instanceName} are available variables. note: @LOG{LOGGERNAME} is equal to the @VAR{instanceName} here.
Required: true
Default: (not specified; see any element defaults within)
options.logger.Enable boolean
Whether to enable the logger.
Required: true
Default: true
options.logger.LogFolder string
The folder in which to write log files.
Required: true
Default: "\\JADE_LOGS\\@VAR{instanceName}"
options.logger.FileNameFormat string
The filename to use when creating log files. Note: if the filesize limit is reached new files will be created with enumerated suffixes such as: MyLogFile-1.txt, MyLogFile-2.txt, etc.
Required: true
Default: "@VAR{instanceName}-@LOG{TIMESTAMP}.log"
options.logger.ErrorsOnly boolean
Whether to log only errors.
Required: true
Default: true
options.logger.DiskThrashPeriod integer
The period in milliseconds with which to flush the file buffer to ensure it's committed to the hard drive. Note: This is a performance consideration to prevent writing to disk too frequently.
Required: true
Default: 1000
options.logger.FileSizeLimit integer
The file size at which to create new files.
Required: true
Default: 1000000
options.logger.StartLogFormat string
The initial string to put into the log file when opened for the first time.
Required: true
Default: "**** START LOGGER - @LOG{LOGGERNAME} (@LOG{TIMESTAMP}) ****"
options.logger.EndLogFormat string
The final string to put in the log file when closed.
Required: true
Default: "\n\n**** END LOGGER - @LOG{LOGGERNAME} (@LOG{TIMESTAMP}) ****"
options.logger.LogEntryFormat string
The format to use when writing log entries when errors are not present.
Required: true
Default: "\n\n@LOG{LOGMESSAGE}"
options.logger.ErrorLogEntryFormat string
The message format used to construct error log entries.
Required: true
Default: "\n\n@LOG{ERRORMESSAGE}"
options.logger.TimestampFormat string
The format used by the @LOG{TIMESTAMP} variable.
Required: true
Default: "%Y-%m-%d %H-%M-%S%3u"
panel object
Required: true
Default: (not specified; see any element defaults within)
panel.open boolean
Whether to open the front panel immediately when run.
Required: true
Default: true
panel.state enum (string)
The state in which the window will open.
Required: true
Default: "Standard"
Enum Items: "Standard" | "Hidden" | "Closed" | "Minimized" | "Maximized"
panel.transparency integer
The transparency of the window. 0 = opaque, 100 = invisible.
Required: true
Default: 0
panel.title string
The title of the plugin window when it runs. Note that the variable 'instanceName' is provided here in a VAR variable container.
Required: true
Default: "@VAR{instanceName}"
panel.titleBarVisible boolean
Whether the window title bar is visible.
Required: true
Default: true
panel.showMenuBar boolean
Whether the menu bar is visible.
Required: true
Default: false
panel.showToolBar boolean
Whether the toolbar is visible.
Required: true
Default: false
panel.makeActive boolean
Whether the window becomes active when opened.
Required: true
Default: false
panel.bringToFront boolean
Whether the window is brought to the front / top of other windows when opened.
Required: true
Default: false
panel.minimizable boolean
Whether the window is minimizable.
Required: true
Default: true
panel.resizable boolean
Whether the window is resizable.
Required: true
Default: true
panel.closeable boolean
Whether the window is closeable.
Required: true
Default: true
panel.closeWhenDone boolean
Whether to close the window when complete.
Required: true
Default: true
panel.center boolean
Whether to center the window when opened. Note: this property overrides the 'position' property.
Required: true
Default: false
panel.position object
The position of the window when opened the first time.
Required: true
Default: (not specified; see any element defaults within)
panel.position.top integer
The vertical position of the window in pixels from the top edge of the viewport. Note: this property is overriden by the 'center' property.
Required: true
Default: 100
panel.position.left integer
The horizontal position of the window in pixels from the left edge of the viewport. Note: this property is overriden by the 'center' property.
Required: true
Default: 100
panel.size object
The size of the window when opened the first time.
Required: false
Default: (not specified; see any element defaults within)
panel.size.width integer
The width of the window in pixels. -1 means use the default width for the panel. Note that depending on panel features exposed, there may be a limit to how small a panel can become.
Required: true
Default: -1
panel.size.height integer
The height of the window in pixels. -1 means use the default height for the panel. Note that depending on panel features exposed, there may be a limit to how small a panel can become.
Required: true
Default: -1
channel object
The communication channel definition used by this plugin. Note: this section rarely needs modifications. In many cases, the underlying plugin implementation depends on at least some of these settings having the values below. Consult with a JADE expert before making changes to this section if you are unfamiliar with the implications of changes to this section.
Required: true
Default: (not specified; see any element defaults within)
channel.SendBreakTimeout integer
The timeout duration in milliseconds to wait for sending messages.
Required: true
Default: 1000
channel.WaitOnBreakTimeout integer
The timeout duration in milliseconds to wait for receiving messages. Note: -1 means wait indefinitely or until shutdown is signalled.
Required: true
Default: -1
channel.WaitOnShutdownTimeout integer
The timeout duration in milliseconds to wait for shutdown acknowledgment.
Required: true
Default: 2000
channel.ThrowTimeoutErrors boolean
Whether to throw timeout errors vs simply returning a boolean indicating whether a timeout occurred.
Required: true
Default: false
channel.ThrowShutdownUnacknowledgedErrors boolean
Whether to throw 'shutdown unacknowledged' errors.
Required: true
Default: true
channel.QueueSize integer
The size of the underlying communication queue in bytes. Note: -1 means unbounded (i.e. grow as needed with available memory).
Required: true
Default: -1
channel.SendBreakEnqueueType enum (string)
The enqueue strategy employed on the underlying queue for standard messages.
Required: true
Default: "Enqueue"
Enum Items: "Enqueue" | "EnqueueAtFront" | "LossyEnqueue" | "LossyEnqueueAtFront"
channel.SendErrorEnqueueType enum (string)
The enqueue strategy employed on the underlying queue for error messages.
Required: true
Default: "Enqueue"
Enum Items: "Enqueue" | "EnqueueAtFront" | "LossyEnqueue" | "LossyEnqueueAtFront"
channel.SendShutdownEnqueueType enum (string)
The enqueue strategy employed on the underlying queue for the shutdown message.
Required: true
Default: "LossyEnqueueAtFront"
Enum Items: "Enqueue" | "EnqueueAtFront" | "LossyEnqueue" | "LossyEnqueueAtFront"
channel.FlushQueueBeforeWaitingOnBreak boolean
Whether to flush the queue upon waiting for new messages (i.e. whether to clear the queue and wait for the next 'new' message; this has the effect of removing old messages and waiting for the next message.
Required: true
Default: false
channel.FlushQueueAfterBreaking boolean
Whether to flush the queue after receiving a new message (i.e. whether to handle the next message coming in the queue and then flush; this has the effect of handling the oldest message (if it exsits) or the next message before flushing the queue.
Required: true
Default: false