Package org.apache.tapestry5.internal
Class AbstractEventContext
java.lang.Object
org.apache.tapestry5.internal.AbstractEventContext
- All Implemented Interfaces:
EventContext
- Direct Known Subclasses:
ArrayEventContext
,URLEventContext
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Constructor Details
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AbstractEventContext
public AbstractEventContext()
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Method Details
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toStrings
Description copied from interface:EventContext
Extracts the value of each context value as a string.- Specified by:
toStrings
in interfaceEventContext
- Returns:
- context values
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toString
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isEmpty
Description copied from interface:EventContext
Returnstrue
if this context contains no elements.- Specified by:
isEmpty
in interfaceEventContext
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tryGet
Description copied from interface:EventContext
Tries to extract a parameter value and coerces or decodes it to the desired type.- Specified by:
tryGet
in interfaceEventContext
- Parameters:
desiredType
- the type of value requiredindex
- identifies which parameter value to extract- Returns:
- the value extracted and converted or coerced, wrapped in an Optional, or
Optional.empty()
if index is out of bounds, or the value can't be converted.
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