Class MathExpressionProps.Builder
java.lang.Object
software.amazon.awscdk.services.cloudwatch.MathExpressionProps.Builder
- All Implemented Interfaces:
software.amazon.jsii.Builder<MathExpressionProps>
- Enclosing interface:
MathExpressionProps
@Stability(Stable)
public static final class MathExpressionProps.Builder
extends Object
implements software.amazon.jsii.Builder<MathExpressionProps>
A builder for
MathExpressionProps
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionbuild()
Builds the configured instance.Sets the value ofMathExpressionOptions.getColor()
expression
(String expression) Sets the value ofMathExpressionProps.getExpression()
Sets the value ofMathExpressionOptions.getLabel()
Sets the value ofMathExpressionOptions.getPeriod()
searchAccount
(String searchAccount) Sets the value ofMathExpressionOptions.getSearchAccount()
searchRegion
(String searchRegion) Sets the value ofMathExpressionOptions.getSearchRegion()
usingMetrics
(Map<String, ? extends IMetric> usingMetrics) Sets the value ofMathExpressionProps.getUsingMetrics()
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Constructor Details
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Builder
public Builder()
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Method Details
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expression
Sets the value ofMathExpressionProps.getExpression()
- Parameters:
expression
- The expression defining the metric. This parameter is required. When an expression contains a SEARCH function, it cannot be used within an Alarm.- Returns:
this
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usingMetrics
@Stability(Stable) public MathExpressionProps.Builder usingMetrics(Map<String, ? extends IMetric> usingMetrics) Sets the value ofMathExpressionProps.getUsingMetrics()
- Parameters:
usingMetrics
- The metrics used in the expression, in a map. The key is the identifier that represents the given metric in the expression, and the value is the actual Metric object.- Returns:
this
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color
Sets the value ofMathExpressionOptions.getColor()
- Parameters:
color
- Color for this metric when added to a Graph in a Dashboard.- Returns:
this
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label
Sets the value ofMathExpressionOptions.getLabel()
- Parameters:
label
- Label for this expression when added to a Graph in a Dashboard. If this expression evaluates to more than one time series (for example, through the use ofMETRICS()
orSEARCH()
expressions), each time series will appear in the graph using a combination of the expression label and the individual metric label. Specify the empty string (''
) to suppress the expression label and only keep the metric label.You can use dynamic labels to show summary information about the displayed time series in the legend. For example, if you use:
[max: ${MAX}] MyMetric
As the metric label, the maximum value in the visible range will be shown next to the time series name in the graph's legend. If the math expression produces more than one time series, the maximum will be shown for each individual time series produce by this math expression.
- Returns:
this
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period
Sets the value ofMathExpressionOptions.getPeriod()
- Parameters:
period
- The period over which the expression's statistics are applied. This period overrides all periods in the metrics used in this math expression.- Returns:
this
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searchAccount
Sets the value ofMathExpressionOptions.getSearchAccount()
- Parameters:
searchAccount
- Account to evaluate search expressions within. Specifying a searchAccount has no effect to the account used for metrics within the expression (passed via usingMetrics).- Returns:
this
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searchRegion
Sets the value ofMathExpressionOptions.getSearchRegion()
- Parameters:
searchRegion
- Region to evaluate search expressions within. Specifying a searchRegion has no effect to the region used for metrics within the expression (passed via usingMetrics).- Returns:
this
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build
Builds the configured instance.- Specified by:
build
in interfacesoftware.amazon.jsii.Builder<MathExpressionProps>
- Returns:
- a new instance of
MathExpressionProps
- Throws:
NullPointerException
- if any required attribute was not provided
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