Prop (original) (raw)
scala.sys.Prop
See theProp companion object
A lightweight interface wrapping a property contained in some unspecified map. Generally it'll be the system properties but this is not a requirement.
See scala.sys.SystemProperties for an example usage.
Attributes
Companion
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Graph
Supertypes
Known subtypes
Members list
Removes the property from the underlying map.
Removes the property from the underlying map.
Attributes
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Gets the current string value if any.
Gets the current string value if any. Will not return null: use isSet to test for existence.
Attributes
Returns
the current string value if any, else the empty string
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True if the key exists in the properties map.
True if the key exists in the properties map. Note that this is not sufficient for a Boolean property to be considered true.
Attributes
Returns
whether the map contains the key
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The full name of the property, e.g., "java.awt.headless".
The full name of the property, e.g., "java.awt.headless".
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Some(value) if the property is set, None otherwise.
Some(value) if the property is set, None otherwise.
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Sets the property.
Sets the property.
Value parameters
newValue
the new string value
Attributes
Returns
the old value, or null if it was unset.
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Sets the property with a value of the represented type.
Sets the property with a value of the represented type.
Attributes
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If the key exists in the properties map, converts the value to type T using valueFn.
If the key exists in the properties map, converts the value to type T using valueFn. As yet no validation is performed: it will throw an exception on a failed conversion.
Attributes
Returns
the converted value, or zero if not in the map
Source
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