Test two objects for inequality.
true
if !(this == that), false otherwise.
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
.
a hash value consistent with ==
The expression x == that
is equivalent to if (x eq null) that eq null else x.equals(that)
.
true
if the receiver object is equivalent to the argument; false
otherwise.
Creates a scala.sys.process.ProcessBuilder from a String
name and a Boolean
. This can be used to force an exit value, with the name being used for toString
.
Creates a scala.sys.process.ProcessBuilder from a Boolean
. This can be to force an exit value.
Creates a scala.sys.process.ProcessBuilder from a java.net.URL
. This ProcessBuilder
can then be used as a Source
, so that one can pipe things from it.
Creates a scala.sys.process.ProcessBuilder from a java.io.File
. This ProcessBuilder
can then be used as a Source
or a Sink
, so one can pipe things from and to it.
Creates a scala.sys.process.ProcessBuilder from a java.lang.ProcessBuilder
.
apply((new java.lang.ProcessBuilder("ls", "-l")) directory new java.io.File(System.getProperty("user.home")))
Creates a scala.sys.process.ProcessBuilder with working dir optionally set to File
and extra environment variables.
apply("java" :: javaArgs, params.get("cwd"), "CLASSPATH" -> "library.jar")
Creates a scala.sys.process.ProcessBuilder with working dir optionally set to File
and extra environment variables.
apply("java", params.get("cwd"), "CLASSPATH" -> "library.jar")
Creates a scala.sys.process.ProcessBuilder with working dir set to File
and extra environment variables.
apply("java" :: javaArgs, new java.io.File("/opt/app"), "CLASSPATH" -> "library.jar")
Creates a scala.sys.process.ProcessBuilder with working dir set to File
and extra environment variables.
apply("java", new java.io.File("/opt/app"), "CLASSPATH" -> "library.jar")
Creates a scala.sys.process.ProcessBuilder from a command represented by a String
, and a sequence of String
representing the arguments.
apply("cat", files)
Creates a scala.sys.process.ProcessBuilder from a sequence of String
, where the head is the command and each element of the tail is a parameter.
apply("cat" :: files)
Creates a scala.sys.process.ProcessBuilder from a String
, including the parameters.
apply("cat file.txt")
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.
the receiver object.
ClassCastException
if the receiver object is not an instance of the erasure of type T0
.
Creates a scala.sys.process.ProcessBuilder from a non-empty sequence of scala.sys.process.ProcessBuilder.Source, which can then be piped to something else.
This will concatenate the output of all sources.
Creates a scala.sys.process.ProcessBuilder from one or more scala.sys.process.ProcessBuilder.Source, which can then be piped to something else.
This will concatenate the output of all sources. For example:
import scala.sys.process._ import scala.sys.process.Process.cat import java.net.URL import java.io.File val spde = new URL("http://technically.us/spde.html") val dispatch = new URL("https://dispatchhttp.org/Dispatch.html") val build = new File("project/build.properties") cat(spde, dispatch, build) #| "grep -i scala" !
Create a copy of the receiver object.
The default implementation of the clone
method is platform dependent.
a copy of the receiver object.
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:
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
).
true
if the argument is a reference to the receiver object; false
otherwise.
The equality method for reference types. Default implementation delegates to eq
.
See also equals
in scala.Any.
true
if the receiver object is equivalent to the argument; false
otherwise.
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.
Returns string formatted according to given format
string. Format strings are as for String.format
(@see java.lang.String.format).
Returns the runtime class representation of the object.
a class object corresponding to the runtime type of the receiver.
The hashCode method for reference types. See hashCode in scala.Any.
the hash code value for this object.
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.
true
if the receiver object is an instance of erasure of type T0
; false
otherwise.
Equivalent to !(this eq that)
.
true
if the argument is not a reference to the receiver object; false
otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Wakes up all threads that are waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
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.
a String representation of the object.
© 2002-2019 EPFL, with contributions from Lightbend.
Licensed under the Apache License, Version 2.0.
https://www.scala-lang.org/api/2.13.0/scala/sys/process/ProcessCreation.html
Factories for creating scala.sys.process.ProcessBuilder. They can be found on and used through scala.sys.process.Process's companion object.