Object scala.util.Properties
object Properties extends PropertiesTrait
Value Members
final def !=(arg0: Any): Boolean
Test two objects for inequality.
- returns
true
if !(this == that), false otherwise.
- Definition Classes
- AnyRef → Any
final def ##(): Int
Equivalent to x.hashCode
except for boxed numeric types and null
. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For null
returns a hashcode where null.hashCode
throws a NullPointerException
.
- returns
a hash value consistent with ==
- Definition Classes
- AnyRef → Any
final def ==(arg0: Any): Boolean
The expression x == that
is equivalent to if (x eq null) that eq null else x.equals(that)
.
- returns
true
if the receiver object is equivalent to the argument;false
otherwise.
- Definition Classes
- AnyRef → Any
val ScalaCompilerVersion: Name
final def asInstanceOf[T0]: T0
Cast the receiver object to be of type T0
.
Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String]
will throw a ClassCastException
at runtime, while the expression List(1).asInstanceOf[List[String]]
will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.
- returns
the receiver object.
- Definition Classes
- Any
- Exceptions thrown
ClassCastException
if the receiver object is not an instance of the erasure of typeT0
.
def clearProp(name: String): String
- Definition Classes
- PropertiesTrait
def clone(): AnyRef
Create a copy of the receiver object.
The default implementation of the clone
method is platform dependent.
- returns
a copy of the receiver object.
val copyrightString: String
- Definition Classes
- PropertiesTrait
val developmentVersion: Option[String]
The development Scala version, if this is not a final release. The precise contents are not guaranteed, but it aims to provide a unique repository identifier (currently the svn revision) in the fourth dotted segment if the running version was built from source.
- returns
Some(version) if this is a non-final version, None if this is a final release or the version cannot be read.
- Definition Classes
- PropertiesTrait
def encodingString: String
This is the default text encoding, overridden (unreliably) with JAVA_OPTS="-Dfile.encoding=Foo"
- Definition Classes
- PropertiesTrait
def envOrElse(name: String, alt: String): String
- Definition Classes
- PropertiesTrait
def envOrNone(name: String): Option[String]
- Definition Classes
- PropertiesTrait
def envOrSome(name: String, alt: Option[String]): Option[String]
- Definition Classes
- PropertiesTrait
final def eq(arg0: AnyRef): Boolean
Tests whether the argument (that
) is a reference to the receiver object (this
).
The eq
method implements an equivalence relation on non-null instances of AnyRef
, and has three additional properties:
-
It is consistent: for any non-null instances
x
and y
of type AnyRef
, multiple invocations of x.eq(y)
consistently returns true
or consistently returns false
.For any non-null instance x
of type AnyRef
, x.eq(null)
and null.eq(x)
returns false
.
null.eq(null)
returns true
. When overriding the equals
or hashCode
methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2
), they should be equal to each other (o1 == o2
) and they should hash to the same value (o1.hashCode == o2.hashCode
).
- returns
true
if the argument is a reference to the receiver object;false
otherwise.
- Definition Classes
- AnyRef
def equals(arg0: Any): Boolean
The equality method for reference types. Default implementation delegates to eq
.
See also equals
in scala.Any.
- returns
true
if the receiver object is equivalent to the argument;false
otherwise.
- Definition Classes
- AnyRef → Any
def finalize(): Unit
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize
method is invoked, as well as the interaction between finalize
and non-local returns and exceptions, are all platform dependent.
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( classOf[java.lang.Throwable] )
- Note
not specified by SLS as a member of AnyRef
final def getClass(): Class[_]
Returns the runtime class representation of the object.
- returns
a class object corresponding to the runtime type of the receiver.
def hashCode(): Int
The hashCode method for reference types. See hashCode in scala.Any.
- returns
the hash code value for this object.
final def isInstanceOf[T0]: Boolean
Test whether the dynamic type of the receiver object is T0
.
Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String]
will return false
, while the expression List(1).isInstanceOf[List[String]]
will return true
. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.
- returns
true
if the receiver object is an instance of erasure of typeT0
;false
otherwise.
- Definition Classes
- Any
def isJavaAtLeast(version: String): Boolean
Compares the given specification version to the specification version of the platform.
- version
a specification version number (legacy forms acceptable)
- returns
true
if the specification version of the current runtime is equal to or higher than the version denoted by the given string.
- Definition Classes
- PropertiesTrait
- Exceptions thrown
NumberFormatException
if the given string is not a version string
// In this example, the runtime's Java specification is assumed to be at version 8. isJavaAtLeast("1.8") // true isJavaAtLeast("8") // true isJavaAtLeast("9") // false isJavaAtLeast("9.1") // false isJavaAtLeast("1.9") // throws
def isLinux: Boolean
Returns true
iff the underlying operating system is a Linux distribution.
- Definition Classes
- PropertiesTrait
def isMac: Boolean
Returns true
iff the underlying operating system is a version of Apple Mac OSX.
- Definition Classes
- PropertiesTrait
def isWin: Boolean
Returns true
iff the underlying operating system is a version of Microsoft Windows.
- Definition Classes
- PropertiesTrait
def javaClassPath: String
- Definition Classes
- PropertiesTrait
def javaHome: String
- Definition Classes
- PropertiesTrait
def javaSpecName: String
- Definition Classes
- PropertiesTrait
def javaSpecVendor: String
- Definition Classes
- PropertiesTrait
def javaSpecVersion: String
- Definition Classes
- PropertiesTrait
def javaVendor: String
- Definition Classes
- PropertiesTrait
def javaVersion: String
- Definition Classes
- PropertiesTrait
def javaVmInfo: String
- Definition Classes
- PropertiesTrait
def javaVmName: String
- Definition Classes
- PropertiesTrait
def javaVmVendor: String
- Definition Classes
- PropertiesTrait
def javaVmVersion: String
- Definition Classes
- PropertiesTrait
def jdkHome: String
- Definition Classes
- PropertiesTrait
def lineSeparator: String
The default end of line character.
- Definition Classes
- PropertiesTrait
def main(args: Array[String]): Unit
- Definition Classes
- PropertiesTrait
final def ne(arg0: AnyRef): Boolean
Equivalent to !(this eq that)
.
- returns
true
if the argument is not a reference to the receiver object;false
otherwise.
- Definition Classes
- AnyRef
final def notify(): Unit
Wakes up a single thread that is waiting on the receiver object's monitor.
- Definition Classes
- AnyRef
- Annotations
- @native()
- Note
not specified by SLS as a member of AnyRef
final def notifyAll(): Unit
Wakes up all threads that are waiting on the receiver object's monitor.
- Definition Classes
- AnyRef
- Annotations
- @native()
- Note
not specified by SLS as a member of AnyRef
def osName: String
- Definition Classes
- PropertiesTrait
def pickJarBasedOn: Class[Option[_]]
- Attributes
- protected
- Definition Classes
- Properties → PropertiesTrait
def propCategory: String
- Attributes
- protected
- Definition Classes
- Properties → PropertiesTrait
val propFilename: String
The name of the properties file
- Attributes
- protected
- Definition Classes
- PropertiesTrait
def propIsSet(name: String): Boolean
- Definition Classes
- PropertiesTrait
def propIsSetTo(name: String, value: String): Boolean
- Definition Classes
- PropertiesTrait
def propOrElse(name: String, alt: String): String
- Definition Classes
- PropertiesTrait
def propOrEmpty(name: String): String
- Definition Classes
- PropertiesTrait
def propOrFalse(name: String): Boolean
- Definition Classes
- PropertiesTrait
def propOrNone(name: String): Option[String]
- Definition Classes
- PropertiesTrait
def propOrNull(name: String): String
- Definition Classes
- PropertiesTrait
val releaseVersion: Option[String]
The numeric portion of the runtime Scala version, if this is a final release. If for instance the versionString says "version 2.9.0.final", this would return Some("2.9.0").
- returns
Some(version) if this is a final release build, None if it is an RC, Beta, etc. or was built from source, or if the version cannot be read.
- Definition Classes
- PropertiesTrait
def scalaCmd: String
- Definition Classes
- PropertiesTrait
def scalaHome: String
- Definition Classes
- PropertiesTrait
def scalaPropOrElse(name: String, alt: String): String
- Definition Classes
- PropertiesTrait
def scalaPropOrEmpty(name: String): String
- Definition Classes
- PropertiesTrait
def scalaPropOrNone(name: String): Option[String]
- Definition Classes
- PropertiesTrait
lazy val scalaProps: java.util.Properties
The loaded properties
- Attributes
- protected
- Definition Classes
- PropertiesTrait
def scalacCmd: String
- Definition Classes
- PropertiesTrait
def setProp(name: String, value: String): String
- Definition Classes
- PropertiesTrait
def sourceEncoding: String
This is the encoding to use reading in source files, overridden with -encoding. Note that it uses "prop" i.e. looks in the scala jar, not the system properties.
- Definition Classes
- PropertiesTrait
def sourceReader: String
- Definition Classes
- PropertiesTrait
final def synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
def tmpDir: String
- Definition Classes
- PropertiesTrait
def toString(): String
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
- returns
a String representation of the object.
- Definition Classes
- AnyRef → Any
def userDir: String
- Definition Classes
- PropertiesTrait
def userHome: String
- Definition Classes
- PropertiesTrait
def userName: String
- Definition Classes
- PropertiesTrait
def versionMsg: String
- Definition Classes
- PropertiesTrait
def versionNumberString: String
Either the development or release version if known, otherwise the empty string.
- Definition Classes
- PropertiesTrait
val versionString: String
The version number of the jar this was loaded from plus "version " prefix, or "version (unknown)" if it cannot be determined.
- Definition Classes
- PropertiesTrait
final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
final def wait(arg0: Long): Unit
© 2002-2019 EPFL, with contributions from Lightbend.
Licensed under the Apache License, Version 2.0.
https://www.scala-lang.org/api/2.12.9/scala/util/Properties$.html
Loads
library.properties
from the jar.