Class Global
- java.lang.Object
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- org.mozilla.javascript.ScriptableObject
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- org.mozilla.javascript.IdScriptableObject
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- org.mozilla.javascript.TopLevel
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- org.mozilla.javascript.ImporterTopLevel
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- org.mozilla.javascript.tools.shell.Global
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- All Implemented Interfaces:
java.io.Serializable
,ConstProperties
,DebuggableObject
,IdFunctionCall
,Scriptable
public class Global extends ImporterTopLevel
This class provides for sharing functions across multiple threads. This is of particular interest to server applications.- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class org.mozilla.javascript.TopLevel
TopLevel.Builtins
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Field Summary
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Fields inherited from class org.mozilla.javascript.ScriptableObject
CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST
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Fields inherited from interface org.mozilla.javascript.Scriptable
NOT_FOUND
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static void
defineClass(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Load a Java class that defines a JavaScript object using the conventions outlined in ScriptableObject.defineClass.static java.lang.Object
deserialize(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
static java.lang.Object
doctest(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Example: doctest("js> function f() {\n > return 3;\n > }\njs> f();\n3\n"); returns 2 (since 2 tests were executed).static void
gc(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
ShellConsole
getConsole(java.nio.charset.Charset cs)
java.io.PrintStream
getErr()
java.io.InputStream
getIn()
java.io.PrintStream
getOut()
java.lang.String[]
getPrompts(Context cx)
static void
help(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Print a help message.void
init(Context cx)
void
init(ContextFactory factory)
void
initQuitAction(QuitAction quitAction)
Set the action to call from quit().Require
installRequire(Context cx, java.util.List<java.lang.String> modulePath, boolean sandboxed)
boolean
isInitialized()
static void
load(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Load and execute a set of JavaScript source files.static void
loadClass(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Load and execute a script compiled to a class file.static java.lang.Object
print(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Print the string values of its arguments.static void
quit(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Call embedding-specific quit action passing its argument as int32 exit code.static java.lang.Object
readFile(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
The readFile reads the given file content and convert it to a string using the specified character coding or default character coding if explicit coding argument is not given.static java.lang.Object
readline(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
The readline reads one line from the standard input.static java.lang.Object
readUrl(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
The readUrl opens connection to the given URL, read all its data and converts them to a string using the specified character coding or default character coding if explicit coding argument is not given.static java.lang.Object
runCommand(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Execute the specified command with the given argument and options as a separate process and return the exit status of the process.int
runDoctest(Context cx, Scriptable scope, java.lang.String session, java.lang.String sourceName, int lineNumber)
static void
seal(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
The seal function seals all supplied arguments.static void
serialize(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
void
setErr(java.io.PrintStream err)
void
setIn(java.io.InputStream in)
void
setOut(java.io.PrintStream out)
void
setSealedStdLib(boolean value)
static java.lang.Object
spawn(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
The spawn function runs a given function or script in a different thread.static java.lang.Object
sync(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
The sync function creates a synchronized function (in the sense of a Java synchronized method) from an existing function.static java.lang.Object
toint32(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Convert the argument to int32 number.static double
version(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Get and set the language version.static java.lang.Object
write(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Print just as in "print," but without the trailing newline.-
Methods inherited from class org.mozilla.javascript.ImporterTopLevel
execIdCall, get, getClassName, has, importPackage, init, initStandardObjects
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Methods inherited from class org.mozilla.javascript.TopLevel
cacheBuiltins, getBuiltinCtor, getBuiltinCtor, getBuiltinPrototype, getBuiltinPrototype
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Methods inherited from class org.mozilla.javascript.IdScriptableObject
activatePrototypeMap, defineOwnProperty, delete, exportAsJSClass, getAttributes, hasPrototypeMap, initPrototypeConstructor, initPrototypeMethod, initPrototypeValue, put, setAttributes
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Methods inherited from class org.mozilla.javascript.ScriptableObject
associateValue, avoidObjectDetection, callMethod, callMethod, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineProperty, defineProperty, defineProperty, defineProperty, delete, deleteProperty, deleteProperty, get, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getClassPrototype, getDefaultValue, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGetterOrSetter, getIds, getObjectPrototype, getParentScope, getProperty, getProperty, getPropertyIds, getPrototype, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, has, hasInstance, hasProperty, hasProperty, isConst, isEmpty, isExtensible, isSealed, preventExtensions, put, putConst, putConstProperty, putProperty, putProperty, redefineProperty, sealObject, setAttributes, setAttributes, setAttributes, setExternalArrayData, setGetterOrSetter, setParentScope, setPrototype, size
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Constructor Detail
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Global
public Global()
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Global
public Global(Context cx)
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Method Detail
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isInitialized
public boolean isInitialized()
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initQuitAction
public void initQuitAction(QuitAction quitAction)
Set the action to call from quit().
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init
public void init(ContextFactory factory)
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init
public void init(Context cx)
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installRequire
public Require installRequire(Context cx, java.util.List<java.lang.String> modulePath, boolean sandboxed)
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help
public static void help(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Print a help message. This method is defined as a JavaScript function.
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gc
public static void gc(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
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print
public static java.lang.Object print(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Print the string values of its arguments. This method is defined as a JavaScript function. Note that its arguments are of the "varargs" form, which allows it to handle an arbitrary number of arguments supplied to the JavaScript function.
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write
public static java.lang.Object write(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Print just as in "print," but without the trailing newline.
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quit
public static void quit(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Call embedding-specific quit action passing its argument as int32 exit code. This method is defined as a JavaScript function.
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version
public static double version(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Get and set the language version. This method is defined as a JavaScript function.
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load
public static void load(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Load and execute a set of JavaScript source files. This method is defined as a JavaScript function.
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defineClass
public static void defineClass(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj) throws java.lang.IllegalAccessException, java.lang.InstantiationException, java.lang.reflect.InvocationTargetException
Load a Java class that defines a JavaScript object using the conventions outlined in ScriptableObject.defineClass.This method is defined as a JavaScript function.
- Throws:
java.lang.IllegalAccessException
- if access is not available to a reflected class memberjava.lang.InstantiationException
- if unable to instantiate the named classjava.lang.reflect.InvocationTargetException
- if an exception is thrown during execution of methods of the named class- See Also:
ScriptableObject.defineClass(Scriptable,Class)
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loadClass
public static void loadClass(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj) throws java.lang.IllegalAccessException, java.lang.InstantiationException
Load and execute a script compiled to a class file.This method is defined as a JavaScript function. When called as a JavaScript function, a single argument is expected. This argument should be the name of a class that implements the Script interface, as will any script compiled by jsc.
- Throws:
java.lang.IllegalAccessException
- if access is not available to the classjava.lang.InstantiationException
- if unable to instantiate the named class
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serialize
public static void serialize(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj) throws java.io.IOException
- Throws:
java.io.IOException
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deserialize
public static java.lang.Object deserialize(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj) throws java.io.IOException, java.lang.ClassNotFoundException
- Throws:
java.io.IOException
java.lang.ClassNotFoundException
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getPrompts
public java.lang.String[] getPrompts(Context cx)
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doctest
public static java.lang.Object doctest(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Example: doctest("js> function f() {\n > return 3;\n > }\njs> f();\n3\n"); returns 2 (since 2 tests were executed).
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runDoctest
public int runDoctest(Context cx, Scriptable scope, java.lang.String session, java.lang.String sourceName, int lineNumber)
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spawn
public static java.lang.Object spawn(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
The spawn function runs a given function or script in a different thread. js> function g() { a = 7; } js> a = 3; 3 js> spawn(g) Thread[Thread-1,5,main] js> a 3
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sync
public static java.lang.Object sync(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
The sync function creates a synchronized function (in the sense of a Java synchronized method) from an existing function. The new function synchronizes on the the second argument if it is defined, or otherwise thethis
object of its invocation. js> var o = { f : sync(function(x) { print("entry"); Packages.java.lang.Thread.sleep(x*1000); print("exit"); })}; js> spawn(function() {o.f(5);}); Thread[Thread-0,5,main] entry js> spawn(function() {o.f(5);}); Thread[Thread-1,5,main] js> exit entry exit
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runCommand
public static java.lang.Object runCommand(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj) throws java.io.IOException
Execute the specified command with the given argument and options as a separate process and return the exit status of the process.Usage:
runCommand(command) runCommand(command, arg1, ..., argN) runCommand(command, arg1, ..., argN, options)
All except the last arguments to runCommand are converted to strings and denote command name and its arguments. If the last argument is a JavaScript object, it is an option object. Otherwise it is converted to string denoting the last argument and options objects assumed to be empty. The following properties of the option object are processed:- args - provides an array of additional command arguments
- env - explicit environment object. All its enumerable properties define the corresponding environment variable names.
- input - the process input. If it is not java.io.InputStream, it is converted to string and sent to the process as its input. If not specified, no input is provided to the process.
- output - the process output instead of java.lang.System.out. If it is not instance of java.io.OutputStream, the process output is read, converted to a string, appended to the output property value converted to string and put as the new value of the output property.
- err - the process error output instead of java.lang.System.err. If it is not instance of java.io.OutputStream, the process error output is read, converted to a string, appended to the err property value converted to string and put as the new value of the err property.
- dir - the working direcotry to run the commands.
- Throws:
java.io.IOException
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seal
public static void seal(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
The seal function seals all supplied arguments.
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readFile
public static java.lang.Object readFile(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj) throws java.io.IOException
The readFile reads the given file content and convert it to a string using the specified character coding or default character coding if explicit coding argument is not given.Usage:
readFile(filePath) readFile(filePath, charCoding)
The first form converts file's context to string using the default character coding.- Throws:
java.io.IOException
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readUrl
public static java.lang.Object readUrl(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj) throws java.io.IOException
The readUrl opens connection to the given URL, read all its data and converts them to a string using the specified character coding or default character coding if explicit coding argument is not given.Usage:
readUrl(url) readUrl(url, charCoding)
The first form converts file's context to string using the default charCoding.- Throws:
java.io.IOException
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toint32
public static java.lang.Object toint32(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj)
Convert the argument to int32 number.
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getConsole
public ShellConsole getConsole(java.nio.charset.Charset cs)
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getIn
public java.io.InputStream getIn()
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setIn
public void setIn(java.io.InputStream in)
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getOut
public java.io.PrintStream getOut()
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setOut
public void setOut(java.io.PrintStream out)
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getErr
public java.io.PrintStream getErr()
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setErr
public void setErr(java.io.PrintStream err)
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setSealedStdLib
public void setSealedStdLib(boolean value)
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readline
public static java.lang.Object readline(Context cx, Scriptable thisObj, java.lang.Object[] args, Function funObj) throws java.io.IOException
The readline reads one line from the standard input. "Prompt" is optional.Usage:
readline(prompt)
- Throws:
java.io.IOException
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