ProcessBuilder

Companion object ProcessBuilder

trait ProcessBuilder extends Source with Sink

Represents a sequence of one or more external processes that can be executed. A ProcessBuilder can be a single external process, or a combination of other ProcessBuilder. One can control where the output of an external process will go to, and where its input will come from, or leave that decision to whoever starts it.

One creates a ProcessBuilder through factories provided in scala.sys.process.Process's companion object, or implicit conversions based on these factories made available in the package object scala.sys.process. Here are some examples:

import scala.sys.process._

// Executes "ls" and sends output to stdout
"ls".!

// Execute "ls" and assign a `LazyList[String]` of its output to "contents".
val contents = Process("ls").lazyLines

// Here we use a `Seq` to make the parameter whitespace-safe
def contentsOf(dir: String): String = Seq("ls", dir).!!

The methods of ProcessBuilder are divided in three categories: the ones that combine two ProcessBuilder to create a third, the ones that redirect input or output of a ProcessBuilder, and the ones that execute the external processes associated with it.

Combining `ProcessBuilder`

Two existing ProcessBuilder can be combined in the following ways:

They can be executed in parallel, with the output of the first being fed as input to the second, like Unix pipes. This is achieved with the #| method.
They can be executed in sequence, with the second starting as soon as the first ends. This is done by the ### method.
The execution of the second one can be conditioned by the return code (exit status) of the first, either only when it's zero, or only when it's not zero. The methods #&& and #|| accomplish these tasks.

Redirecting Input/Output

Though control of input and output can be done when executing the process, there's a few methods that create a new ProcessBuilder with a pre-configured input or output. They are #<, #> and #>>, and may take as input either another ProcessBuilder (like the pipe described above), or something else such as a java.io.File or a java.io.InputStream. For example:

new URL("https://databinder.net/dispatch/About") #> "grep JSON" #>> new File("About_JSON") !

Starting Processes

To execute all external commands associated with a ProcessBuilder, one may use one of four groups of methods. Each of these methods have various overloads and variations to enable further control over the I/O. These methods are:

run: the most general method, it returns a scala.sys.process.Process immediately, and the external command executes concurrently.
!: blocks until all external commands exit, and returns the exit code of the last one in the chain of execution.
!!: blocks until all external commands exit, and returns a String with the output generated.
lazyLines: returns immediately like run, and the output being generated is provided through a LazyList[String]. Getting the next element of that LazyList may block until it becomes available. This method will throw an exception if the return code is different than zero -- if this is not desired, use the lazyLines_! method.

Handling Input and Output

If not specified, the input of the external commands executed with run or ! will not be tied to anything, and the output will be redirected to the stdout and stderr of the Scala process. For the methods !! and lazyLines, no input will be provided, and the output will be directed according to the semantics of these methods.

Some methods will cause stdin to be used as input. Output can be controlled with a scala.sys.process.ProcessLogger -- !! and lazyLines will only redirect error output when passed a ProcessLogger. If one desires full control over input and output, then a scala.sys.process.ProcessIO can be used with run.

For example, we could silence the error output from lazyLines_! like this:

val etcFiles = "find /etc" lazyLines_! ProcessLogger(line => ())

Extended Example

Let's examine in detail one example of usage:

import scala.sys.process._
"find src -name *.scala -exec grep null {} ;"  #|  "xargs test -z"  #&&  "echo null-free"  #||  "echo null detected"  !

Note that every String is implicitly converted into a ProcessBuilder through the implicits imported from scala.sys.process. These ProcessBuilder are then combined in three different ways.

#| pipes the output of the first command into the input of the second command. It mirrors a shell pipe (|).
#&& conditionally executes the second command if the previous one finished with exit value 0. It mirrors shell's &&.
#|| conditionally executes the third command if the exit value of the previous command is different than zero. It mirrors shell's ||.

Finally, ! at the end executes the commands, and returns the exit value. Whatever is printed will be sent to the Scala process standard output. If we wanted to capture it, we could run that with !! instead.

Note: though it is not shown above, the equivalent of a shell's ; would be ###. The reason for this name is that ; is a reserved token in Scala.

Source: ProcessBuilder.scala

Linear Supertypes

Sink, Source, AnyRef, Any

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Sink
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by any2stringadd
by StringFormat
by Ensuring
by ArrowAssoc

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Abstract Value Members

abstract def !(log: ProcessLogger): Int
Starts the process represented by this builder, blocks until it exits, and returns the exit code.
Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are sent to the given ProcessLogger.
abstract def !: Int
Starts the process represented by this builder, blocks until it exits, and returns the exit code.
Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are sent to the console.
abstract def !!(log: ProcessLogger): String
Starts the process represented by this builder, blocks until it exits, and returns the output as a String.
Starts the process represented by this builder, blocks until it exits, and returns the output as a String. Standard error is sent to the provided ProcessLogger. If the exit code is non-zero, an exception is thrown.
abstract def !!: String
Starts the process represented by this builder, blocks until it exits, and returns the output as a String.
Starts the process represented by this builder, blocks until it exits, and returns the output as a String. Standard error is sent to the console. If the exit code is non-zero, an exception is thrown.
abstract def !!<(log: ProcessLogger): String
Starts the process represented by this builder, blocks until it exits, and returns the output as a String.
Starts the process represented by this builder, blocks until it exits, and returns the output as a String. Standard error is sent to the provided ProcessLogger. If the exit code is non-zero, an exception is thrown. The newly started process reads from standard input of the current process.
abstract def !!<: String
Starts the process represented by this builder, blocks until it exits, and returns the output as a String.
Starts the process represented by this builder, blocks until it exits, and returns the output as a String. Standard error is sent to the console. If the exit code is non-zero, an exception is thrown. The newly started process reads from standard input of the current process.
abstract def !<(log: ProcessLogger): Int
Starts the process represented by this builder, blocks until it exits, and returns the exit code.
Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are sent to the given ProcessLogger. The newly started process reads from standard input of the current process.
abstract def !<: Int
Starts the process represented by this builder, blocks until it exits, and returns the exit code.
Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are sent to the console. The newly started process reads from standard input of the current process.
abstract def ###(other: ProcessBuilder): ProcessBuilder
Constructs a command that will run this command and then other.
Constructs a command that will run this command and then other. The exit code will be the exit code of other.
abstract def #&&(other: ProcessBuilder): ProcessBuilder
Constructs a command that runs this command first and then other if this command succeeds.
abstract def #|(other: ProcessBuilder): ProcessBuilder
Constructs a command that will run this command and pipes the output to other.
Constructs a command that will run this command and pipes the output to other. other must be a simple command.
abstract def #||(other: ProcessBuilder): ProcessBuilder
Constructs a command that runs this command first and then other if this command does not succeed.
abstract def canPipeTo: Boolean
True if this command can be the target of a pipe.
abstract def hasExitValue: Boolean
True if this command has an exit code which should be propagated to the user.
True if this command has an exit code which should be propagated to the user. Given a pipe between A and B, if B.hasExitValue is true then the exit code will be the one from B; if it is false, the one from A. This exists to prevent output redirections (implemented as pipes) from masking useful process error codes.
abstract def lazyLines(log: ProcessLogger, capacity: Integer): LazyList[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the LazyList. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the LazyList will provide all lines up to termination and then throw an exception.
abstract def lazyLines(log: ProcessLogger): LazyList[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the LazyList will provide all lines up to termination and then throw an exception.
abstract def lazyLines(capacity: Integer): LazyList[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the LazyList. Standard error is sent to the console. If the process exits with a non-zero value, the LazyList will provide all lines up to termination and then throw an exception.
abstract def lazyLines: LazyList[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. Standard error is sent to the console. If the process exits with a non-zero value, the LazyList will provide all lines up to termination and then throw an exception.
abstract def lazyLines_!(log: ProcessLogger, capacity: Integer): LazyList[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the LazyList will provide all lines up to termination but will not throw an exception.
abstract def lazyLines_!(log: ProcessLogger): LazyList[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the LazyList will provide all lines up to termination but will not throw an exception.
abstract def lazyLines_!(capacity: Integer): LazyList[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the console. If the process exits with a non-zero value, the LazyList will provide all lines up to termination but will not throw an exception.
abstract def lazyLines_!: LazyList[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. Standard error is sent to the console. If the process exits with a non-zero value, the LazyList will provide all lines up to termination but will not throw an exception.
abstract def run(log: ProcessLogger, connectInput: Boolean): Process
Starts the process represented by this builder.
Starts the process represented by this builder. Standard output and error are sent to the given ProcessLogger. The newly started process reads from standard input of the current process if connectInput is true.
abstract def run(connectInput: Boolean): Process
Starts the process represented by this builder.
Starts the process represented by this builder. Standard output and error are sent to the console. The newly started process reads from standard input of the current process if connectInput is true.
abstract def run(io: ProcessIO): Process
Starts the process represented by this builder.
Starts the process represented by this builder. I/O is handled by the given ProcessIO instance.
abstract def run(log: ProcessLogger): Process
Starts the process represented by this builder.
Starts the process represented by this builder. Standard output and error are sent to the given ProcessLogger.
abstract def run(): Process
Starts the process represented by this builder.
Starts the process represented by this builder. Standard output and error are sent to the console.
abstract def toSink: ProcessBuilder
Attributes
protected
Definition Classes
Sink
abstract def toSource: ProcessBuilder
Attributes
protected
Definition Classes
Source
abstract def lineStream(log: ProcessLogger, capacity: Integer): Stream[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the Stream will provide all lines up to termination and then throw an exception.
Annotations
@deprecated
Deprecated
(Since version 2.13.0) use lazyLines
abstract def lineStream(log: ProcessLogger): Stream[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the Stream will provide all lines up to termination and then throw an exception.
Annotations
@deprecated
Deprecated
(Since version 2.13.0) use lazyLines
abstract def lineStream(capacity: Integer): Stream[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the console. If the process exits with a non-zero value, the Stream will provide all lines up to termination and then throw an exception.
Annotations
@deprecated
Deprecated
(Since version 2.13.0) use lazyLines
abstract def lineStream: Stream[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. Standard error is sent to the console. If the process exits with a non-zero value, the Stream will provide all lines up to termination and then throw an exception.
Annotations
@deprecated
Deprecated
(Since version 2.13.0) use lazyLines
abstract def lineStream_!(log: ProcessLogger, capacity: Integer): Stream[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the Stream will provide all lines up to termination but will not throw an exception.
Annotations
@deprecated
Deprecated
(Since version 2.13.0) use lazyLines_!
abstract def lineStream_!(log: ProcessLogger): Stream[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the Stream will provide all lines up to termination but will not throw an exception.
Annotations
@deprecated
Deprecated
(Since version 2.13.0) use lazyLines_!
abstract def lineStream_!(capacity: Integer): Stream[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the console. If the process exits with a non-zero value, the Stream will provide all lines up to termination but will not throw an exception.
Annotations
@deprecated
Deprecated
(Since version 2.13.0) use lazyLines_!
abstract def lineStream_!: Stream[String]
Starts the process represented by this builder.
Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. Standard error is sent to the console. If the process exits with a non-zero value, the Stream will provide all lines up to termination but will not throw an exception.
Annotations
@deprecated
Deprecated
(Since version 2.13.0) use lazyLines_!

Concrete Value Members

final def !=(arg0: Any): Boolean
Test two objects for inequality.
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.
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
def #<(b: ProcessBuilder): ProcessBuilder
Reads the output of a scala.sys.process.ProcessBuilder into the input stream of this process.
Reads the output of a scala.sys.process.ProcessBuilder into the input stream of this process.
Definition Classes
Sink
def #<(in: => InputStream): ProcessBuilder
Reads the given InputStream into the input stream of this process.
Reads the given InputStream into the input stream of this process. The argument is call-by-name, so the stream is recreated, read, and closed each time this process is executed.
Definition Classes
Sink
def #<(f: URL): ProcessBuilder
Reads the given URL into the input stream of this process.
Reads the given URL into the input stream of this process.
Definition Classes
Sink
def #<(f: File): ProcessBuilder
Reads the given file into the input stream of this process.
Reads the given file into the input stream of this process.
Definition Classes
Sink
def #>(b: ProcessBuilder): ProcessBuilder
Writes the output stream of this process to a scala.sys.process.ProcessBuilder.
Writes the output stream of this process to a scala.sys.process.ProcessBuilder.
Definition Classes
Source
def #>(out: => OutputStream): ProcessBuilder
Writes the output stream of this process to the given OutputStream.
Writes the output stream of this process to the given OutputStream. The argument is call-by-name, so the stream is recreated, written, and closed each time this process is executed.
Definition Classes
Source
def #>(f: File): ProcessBuilder
Writes the output stream of this process to the given file.
Writes the output stream of this process to the given file.
Definition Classes
Source
def #>>(f: File): ProcessBuilder
Appends the output stream of this process to the given file.
Appends the output stream of this process to the given file.
Definition Classes
Source
def +(other: String): String
Implicit
This member is added by an implicit conversion from ProcessBuilder toany2stringadd[ProcessBuilder] performed by method any2stringadd in scala.Predef.
Definition Classes
any2stringadd
def ->[B](y: B): (ProcessBuilder, B)
Implicit
This member is added by an implicit conversion from ProcessBuilder toArrowAssoc[ProcessBuilder] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc
Annotations
@inline()
final def ==(arg0: Any): Boolean
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
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
final def asInstanceOf[T0]: T0
Forces the compiler to treat the receiver object as having type T0, even though doing so may violate type safety.
Forces the compiler to treat the receiver object as having type T0, even though doing so may violate type safety.
This method is useful when you believe you have type information the compiler doesn't, and it also isn't possible to check the type at runtime. In such situations, skipping type safety is the only option.
It is platform dependent whether asInstanceOf has any effect at runtime. It might do a runtime type test on the erasure of T0, insert a conversion (such as boxing/unboxing), fill in a default value, or do nothing at all.
In particular, asInstanceOf is not a type test. It does **not** mean:
```
this match {
 case x: T0 => x
 case _     => throw ClassCastException("...")
```
Use pattern matching or isInstanceOf for type testing instead.
Situations where asInstanceOf is useful:
- when flow analysis fails to deduce T0 automatically
- when down-casting a type parameter or an abstract type member (which cannot be checked at runtime due to type erasure) If there is any doubt and you are able to type test instead, you should do so.
Be careful of using asInstanceOf when T0 is a primitive type. When T0 is primitive, asInstanceOf may insert a conversion instead of a type test. If your intent is to convert, use a toT method (x.toChar, x.toByte, etc.).
returns
the receiver object.
Definition Classes
Any
Exceptions thrown
ClassCastException if the receiver is not an instance of the erasure of T0, if that can be checked on this platform
def cat: ProcessBuilder
Returns a scala.sys.process.ProcessBuilder representing this Source.
Returns a scala.sys.process.ProcessBuilder representing this Source.
Definition Classes
Source
def clone(): AnyRef
Create a copy of the receiver object.
Create a copy of the receiver object.
The default implementation of the clone method is platform dependent.
returns
a copy of the receiver object.
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.CloneNotSupportedException]) @native()
Note
not specified by SLS as a member of AnyRef
def ensuring(cond: (ProcessBuilder) => Boolean, msg: => Any): ProcessBuilder
Implicit
This member is added by an implicit conversion from ProcessBuilder toEnsuring[ProcessBuilder] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: (ProcessBuilder) => Boolean): ProcessBuilder
Implicit
This member is added by an implicit conversion from ProcessBuilder toEnsuring[ProcessBuilder] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean, msg: => Any): ProcessBuilder
Implicit
This member is added by an implicit conversion from ProcessBuilder toEnsuring[ProcessBuilder] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean): ProcessBuilder
Implicit
This member is added by an implicit conversion from ProcessBuilder toEnsuring[ProcessBuilder] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
final def eq(arg0: AnyRef): Boolean
Tests whether the argument (that) is a reference to the receiver object (this).
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: AnyRef): Boolean
The equality method for reference types.
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.
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[_ <: AnyRef]
Returns the runtime class representation of the object.
Returns the runtime class representation of the object.
returns
a class object corresponding to the runtime type of the receiver.
Definition Classes
AnyRef → Any
Annotations
@native()
def hashCode(): Int
The hashCode method for reference types.
The hashCode method for reference types. See hashCode in scala.Any.
returns
the hash code value for this object.
Definition Classes
AnyRef → Any
Annotations
@native()
final def isInstanceOf[T0]: Boolean
Test whether the dynamic type of the receiver object has the same erasure as T0.
Test whether the dynamic type of the receiver object has the same erasure as T0.
Depending on what T0 is, the test is done in one of the below ways:
- T0 is a non-parameterized class type, e.g. BigDecimal: this method returns true if the value of the receiver object is a BigDecimal or a subtype of BigDecimal.
- T0 is a parameterized class type, e.g. List[Int]: this method returns true if the value of the receiver object is some List[X] for any X. For example, List(1, 2, 3).isInstanceOf[List[String]] will return true.
- T0 is some singleton type x.type or literal x: this method returns this.eq(x). For example, x.isInstanceOf[1] is equivalent to x.eq(1)
- T0 is an intersection X with Y or X & Y: this method is equivalent to x.isInstanceOf[X] && x.isInstanceOf[Y]
- T0 is a union X | Y: this method is equivalent to x.isInstanceOf[X] || x.isInstanceOf[Y]
- T0 is a type parameter or an abstract type member: this method is equivalent to isInstanceOf[U] where U is T0's upper bound, Any if T0 is unbounded. For example, x.isInstanceOf[A] where A is an unbounded type parameter will return true for any value of x.
This is exactly equivalent to the type pattern _: T0
returns
true if the receiver object is an instance of erasure of type T0; false otherwise.
Definition Classes
Any
Note
due to the unexpectedness of List(1, 2, 3).isInstanceOf[List[String]] returning true and x.isInstanceOf[A] where A is a type parameter or abstract member returning true, these forms issue a warning.
final def ne(arg0: AnyRef): Boolean
Equivalent to !(this eq that).
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.
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.
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
final def synchronized[T0](arg0: => T0): T0
Executes the code in body with an exclusive lock on this.
Executes the code in body with an exclusive lock on this.
returns
the result of body
Definition Classes
AnyRef
def toString(): String
Creates a String representation of this object.
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
final def wait(): Unit
See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--.
See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--.
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
Note
not specified by SLS as a member of AnyRef
final def wait(arg0: Long, arg1: Int): Unit
See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-
See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
Note
not specified by SLS as a member of AnyRef
final def wait(arg0: Long): Unit
See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-.
See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-.
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException]) @native()
Note
not specified by SLS as a member of AnyRef

Deprecated Value Members

def formatted(fmtstr: String): String
Returns string formatted according to given format string.
Returns string formatted according to given format string. Format strings are as for String.format (@see java.lang.String.format).
Implicit
This member is added by an implicit conversion from ProcessBuilder toStringFormat[ProcessBuilder] performed by method StringFormat in scala.Predef.
Definition Classes
StringFormat
Annotations
@deprecated @inline()
Deprecated
(Since version 2.12.16) Use formatString.format(value) instead of value.formatted(formatString), or use the f"" string interpolator. In Java 15 and later, formatted resolves to the new method in String which has reversed parameters.
def →[B](y: B): (ProcessBuilder, B)
Implicit
This member is added by an implicit conversion from ProcessBuilder toArrowAssoc[ProcessBuilder] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc
Annotations
@deprecated
Deprecated
(Since version 2.13.0) Use -> instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

Packages

Package structure

Automatic imports

ProcessBuilder

Companion object ProcessBuilder

trait ProcessBuilder extends Source with Sink

Combining `ProcessBuilder`

Redirecting Input/Output

Starting Processes

Handling Input and Output

Extended Example

Abstract Value Members

Concrete Value Members

Deprecated Value Members

Inherited from Sink

Inherited from Source

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd fromProcessBuilder to any2stringadd[ProcessBuilder]

Inherited by implicit conversion StringFormat fromProcessBuilder to StringFormat[ProcessBuilder]

Inherited by implicit conversion Ensuring fromProcessBuilder to Ensuring[ProcessBuilder]

Inherited by implicit conversion ArrowAssoc fromProcessBuilder to ArrowAssoc[ProcessBuilder]

Ungrouped

Packages

Package structure

Automatic imports

ProcessBuilder

Companion object ProcessBuilder

trait ProcessBuilder extends Source with Sink

Combining ProcessBuilder

Redirecting Input/Output

Starting Processes

Handling Input and Output

Extended Example

Abstract Value Members

Concrete Value Members

Deprecated Value Members

Inherited from Sink

Inherited from Source

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd fromProcessBuilder to any2stringadd[ProcessBuilder]

Inherited by implicit conversion StringFormat fromProcessBuilder to StringFormat[ProcessBuilder]

Inherited by implicit conversion Ensuring fromProcessBuilder to Ensuring[ProcessBuilder]

Inherited by implicit conversion ArrowAssoc fromProcessBuilder to ArrowAssoc[ProcessBuilder]

Ungrouped

ProcessBuilder

Combining `ProcessBuilder`