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javax.tools.JavaFileManager

File manager for tools operating on Java™ programming language source and class files. In this context, file means an abstraction of regular files and other sources of data.

When constructing new JavaFileObjects, the file manager must determine where to create them. For example, if a file manager manages regular files on a file system, it would most likely have a current/working directory to use as default location when creating or finding files. A number of hints can be provided to a file manager as to where to create files. Any file manager might choose to ignore these hints.

Some methods in this interface use class names. Such class names must be given in the Java Virtual Machine internal form of fully qualified class and interface names. For convenience '.' and '/' are interchangeable. The internal form is defined in chapter four of The Java™ Virtual Machine Specification.

Discussion: this means that the names "java/lang.package-info", "java/lang/package-info", "java.lang.package-info", are valid and equivalent. Compare to binary name as defined in The Java™ Language Specification, section 13.1 "The Form of a Binary".

The case of names is significant. All names should be treated as case-sensitive. For example, some file systems have case-insensitive, case-aware file names. File objects representing such files should take care to preserve case by using File.getCanonicalFile() or similar means. If the system is not case-aware, file objects must use other means to preserve case.

Relative names: some methods in this interface use relative names. A relative name is a non-null, non-empty sequence of path segments separated by '/'. '.' or '..' are invalid path segments. A valid relative name must match the "path-rootless" rule of RFC 3986, section 3.3. Informally, this should be true:

URI.create(relativeName).normalize().getPath().equals(relativeName)

URI.create(relativeName).normalize().getPath().equals(relativeName)

All methods in this interface might throw a SecurityException.

An object of this interface is not required to support multi-threaded access, that is, be synchronized. However, it must support concurrent access to different file objects created by this object.

Implementation note: a consequence of this requirement is that a trivial implementation of output to a java.util.jar.JarOutputStream is not a sufficient implementation. That is, rather than creating a JavaFileObject that returns the JarOutputStream directly, the contents must be cached until closed and then written to the JarOutputStream.

Unless explicitly allowed, all methods in this interface might throw a NullPointerException if given a null argument.

File manager for tools operating on Java™ programming language
source and class files.  In this context, file means an
abstraction of regular files and other sources of data.

When constructing new JavaFileObjects, the file manager must
determine where to create them.  For example, if a file manager
manages regular files on a file system, it would most likely have a
current/working directory to use as default location when creating
or finding files.  A number of hints can be provided to a file
manager as to where to create files.  Any file manager might choose
to ignore these hints.

Some methods in this interface use class names.  Such class
names must be given in the Java Virtual Machine internal form of
fully qualified class and interface names.  For convenience '.'
and '/' are interchangeable.  The internal form is defined in
chapter four of
The Java™ Virtual Machine Specification.


  Discussion: this means that the names
  "java/lang.package-info", "java/lang/package-info",
  "java.lang.package-info", are valid and equivalent.  Compare to
  binary name as defined in
  The Java™ Language Specification,
  section 13.1 "The Form of a Binary".


The case of names is significant.  All names should be treated
as case-sensitive.  For example, some file systems have
case-insensitive, case-aware file names.  File objects representing
such files should take care to preserve case by using File.getCanonicalFile() or similar means.  If the system is
not case-aware, file objects must use other means to preserve case.

Relative names: some
methods in this interface use relative names.  A relative name is a
non-null, non-empty sequence of path segments separated by '/'.
'.' or '..'  are invalid path segments.  A valid relative name must
match the "path-rootless" rule of RFC 3986,
section 3.3.  Informally, this should be true:

 URI.create(relativeName).normalize().getPath().equals(relativeName)


 URI.create(relativeName).normalize().getPath().equals(relativeName)

All methods in this interface might throw a SecurityException.

An object of this interface is not required to support
multi-threaded access, that is, be synchronized.  However, it must
support concurrent access to different file objects created by this
object.

Implementation note: a consequence of this requirement
is that a trivial implementation of output to a java.util.jar.JarOutputStream is not a sufficient implementation.
That is, rather than creating a JavaFileObject that returns the
JarOutputStream directly, the contents must be cached until closed
and then written to the JarOutputStream.

Unless explicitly allowed, all methods in this interface might
throw a NullPointerException if given a null argument.
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closeclj

(close this)

Releases any resources opened by this file manager directly or indirectly. This might render this file manager useless and the effect of subsequent calls to methods on this object or any objects obtained through this object is undefined unless explicitly allowed. However, closing a file manager which has already been closed has no effect.

throws: java.io.IOException - if an I/O error occurred

Releases any resources opened by this file manager directly or
 indirectly.  This might render this file manager useless and
 the effect of subsequent calls to methods on this object or any
 objects obtained through this object is undefined unless
 explicitly allowed.  However, closing a file manager which has
 already been closed has no effect.

throws: java.io.IOException - if an I/O error occurred
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flushclj

(flush this)

Flushes any resources opened for output by this file manager directly or indirectly. Flushing a closed file manager has no effect.

throws: java.io.IOException - if an I/O error occurred

Flushes any resources opened for output by this file manager
 directly or indirectly.  Flushing a closed file manager has no
 effect.

throws: java.io.IOException - if an I/O error occurred
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get-class-loaderclj

(get-class-loader this location)

Gets a class loader for loading plug-ins from the given location. For example, to load annotation processors, a compiler will request a class loader for the ANNOTATION_PROCESSOR_PATH location.

location - a location - javax.tools.JavaFileManager$Location

returns: a class loader for the given location; or null if loading plug-ins from the given location is disabled or if the location is not known - java.lang.ClassLoader

throws: java.lang.SecurityException - if a class loader can not be created in the current security context

Gets a class loader for loading plug-ins from the given
 location.  For example, to load annotation processors, a
 compiler will request a class loader for the ANNOTATION_PROCESSOR_PATH location.

location - a location - `javax.tools.JavaFileManager$Location`

returns: a class loader for the given location; or null
 if loading plug-ins from the given location is disabled or if
 the location is not known - `java.lang.ClassLoader`

throws: java.lang.SecurityException - if a class loader can not be created in the current security context
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get-file-for-inputclj

(get-file-for-input this location package-name relative-name)

Gets a javax.tools.file object for input representing the specified relative name in the specified package in the given location.

If the returned object represents a source or class file, it must be an instance of JavaFileObject.

Informally, the file object returned by this method is located in the concatenation of the location, package name, and relative name. For example, to locate the properties file "resources/compiler.properties" in the package "com.sun.tools.javac" in the SOURCE_PATH location, this method might be called like so:

getFileForInput(SOURCE_PATH, "com.sun.tools.javac", "resources/compiler.properties");

If the call was executed on Windows, with SOURCE_PATH set to "C:\Documents and Settings\UncleBob\src\share\classes", a valid result would be a file object representing the file "C:\Documents and Settings\UncleBob\src\share\classes\com\sun\tools\javac\resources\compiler.properties".

location - a location - javax.tools.JavaFileManager$Location package-name - a package name - java.lang.String relative-name - a relative name - java.lang.String

returns: a file object, might return null if the file does not exist - javax.tools.FileObject

throws: java.lang.IllegalArgumentException - if the location is not known to this file manager and the file manager does not support unknown locations, or if relativeName is not valid

Gets a javax.tools.file object for input
 representing the specified relative
 name in the specified package in the given location.

 If the returned object represents a source or class file, it must be an instance
 of JavaFileObject.

 Informally, the file object returned by this method is
 located in the concatenation of the location, package name, and
 relative name.  For example, to locate the properties file
 "resources/compiler.properties" in the package
 "com.sun.tools.javac" in the SOURCE_PATH location, this method
 might be called like so:



getFileForInput(SOURCE_PATH, "com.sun.tools.javac", "resources/compiler.properties");

 If the call was executed on Windows, with SOURCE_PATH set to
 "C:\Documents and Settings\UncleBob\src\share\classes",
 a valid result would be a file object representing the file
 "C:\Documents and Settings\UncleBob\src\share\classes\com\sun\tools\javac\resources\compiler.properties".

location - a location - `javax.tools.JavaFileManager$Location`
package-name - a package name - `java.lang.String`
relative-name - a relative name - `java.lang.String`

returns: a file object, might return null if the file
 does not exist - `javax.tools.FileObject`

throws: java.lang.IllegalArgumentException - if the location is not known to this file manager and the file manager does not support unknown locations, or if relativeName is not valid
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get-file-for-outputclj

(get-file-for-output this location package-name relative-name sibling)

Gets a javax.tools.file object for output representing the specified relative name in the specified package in the given location.

Optionally, this file manager might consider the sibling as a hint for where to place the output. The exact semantics of this hint is unspecified. The JDK compiler, javac, for example, will place class files in the same directories as originating source files unless a class file output directory is provided. To facilitate this behavior, javac might provide the originating source file as sibling when calling this method.

If the returned object represents a source or class file, it must be an instance of JavaFileObject.

Informally, the file object returned by this method is located in the concatenation of the location, package name, and relative name or next to the sibling argument. See getFileForInput for an example.

location - a location - javax.tools.JavaFileManager$Location package-name - a package name - java.lang.String relative-name - a relative name - java.lang.String sibling - a file object to be used as hint for placement; might be null - javax.tools.FileObject

returns: a file object - javax.tools.FileObject

throws: java.lang.IllegalArgumentException - if sibling is not known to this file manager, or if the location is not known to this file manager and the file manager does not support unknown locations, or if relativeName is not valid

Gets a javax.tools.file object for output
 representing the specified relative
 name in the specified package in the given location.

 Optionally, this file manager might consider the sibling as
 a hint for where to place the output.  The exact semantics of
 this hint is unspecified.  The JDK compiler, javac, for
 example, will place class files in the same directories as
 originating source files unless a class file output directory
 is provided.  To facilitate this behavior, javac might provide
 the originating source file as sibling when calling this
 method.

 If the returned object represents a source or class file, it must be an instance
 of JavaFileObject.

 Informally, the file object returned by this method is
 located in the concatenation of the location, package name, and
 relative name or next to the sibling argument.  See getFileForInput for an example.

location - a location - `javax.tools.JavaFileManager$Location`
package-name - a package name - `java.lang.String`
relative-name - a relative name - `java.lang.String`
sibling - a file object to be used as hint for placement; might be null - `javax.tools.FileObject`

returns: a file object - `javax.tools.FileObject`

throws: java.lang.IllegalArgumentException - if sibling is not known to this file manager, or if the location is not known to this file manager and the file manager does not support unknown locations, or if relativeName is not valid
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get-java-file-for-inputclj

(get-java-file-for-input this location class-name kind)

Gets a javax.tools.file object for input representing the specified class of the specified kind in the given location.

location - a location - javax.tools.JavaFileManager$Location class-name - the name of a class - java.lang.String kind - the kind of file, must be one of SOURCE or CLASS - javax.tools.JavaFileObject$Kind

returns: a file object, might return null if the file does not exist - javax.tools.JavaFileObject

throws: java.lang.IllegalArgumentException - if the location is not known to this file manager and the file manager does not support unknown locations, or if the kind is not valid

Gets a javax.tools.file object for input
 representing the specified class of the specified kind in the
 given location.

location - a location - `javax.tools.JavaFileManager$Location`
class-name - the name of a class - `java.lang.String`
kind - the kind of file, must be one of SOURCE or CLASS - `javax.tools.JavaFileObject$Kind`

returns: a file object, might return null if the
 file does not exist - `javax.tools.JavaFileObject`

throws: java.lang.IllegalArgumentException - if the location is not known to this file manager and the file manager does not support unknown locations, or if the kind is not valid
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get-java-file-for-outputclj

(get-java-file-for-output this location class-name kind sibling)

Gets a javax.tools.file object for output representing the specified class of the specified kind in the given location.

Optionally, this file manager might consider the sibling as a hint for where to place the output. The exact semantics of this hint is unspecified. The JDK compiler, javac, for example, will place class files in the same directories as originating source files unless a class file output directory is provided. To facilitate this behavior, javac might provide the originating source file as sibling when calling this method.

location - a location - javax.tools.JavaFileManager$Location class-name - the name of a class - java.lang.String kind - the kind of file, must be one of SOURCE or CLASS - javax.tools.JavaFileObject$Kind sibling - a file object to be used as hint for placement; might be null - javax.tools.FileObject

returns: a file object for output - javax.tools.JavaFileObject

throws: java.lang.IllegalArgumentException - if sibling is not known to this file manager, or if the location is not known to this file manager and the file manager does not support unknown locations, or if the kind is not valid

Gets a javax.tools.file object for output
 representing the specified class of the specified kind in the
 given location.

 Optionally, this file manager might consider the sibling as
 a hint for where to place the output.  The exact semantics of
 this hint is unspecified.  The JDK compiler, javac, for
 example, will place class files in the same directories as
 originating source files unless a class file output directory
 is provided.  To facilitate this behavior, javac might provide
 the originating source file as sibling when calling this
 method.

location - a location - `javax.tools.JavaFileManager$Location`
class-name - the name of a class - `java.lang.String`
kind - the kind of file, must be one of SOURCE or CLASS - `javax.tools.JavaFileObject$Kind`
sibling - a file object to be used as hint for placement; might be null - `javax.tools.FileObject`

returns: a file object for output - `javax.tools.JavaFileObject`

throws: java.lang.IllegalArgumentException - if sibling is not known to this file manager, or if the location is not known to this file manager and the file manager does not support unknown locations, or if the kind is not valid
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handle-optionclj

(handle-option this current remaining)

Handles one option. If current is an option to this file manager it will consume any arguments to that option from remaining and return true, otherwise return false.

current - current option - java.lang.String remaining - remaining options - java.util.Iterator

returns: true if this option was handled by this file manager, false otherwise - boolean

throws: java.lang.IllegalArgumentException - if this option to this file manager is used incorrectly

Handles one option.  If current is an option to this
 file manager it will consume any arguments to that option from
 remaining and return true, otherwise return false.

current - current option - `java.lang.String`
remaining - remaining options - `java.util.Iterator`

returns: true if this option was handled by this file manager,
 false otherwise - `boolean`

throws: java.lang.IllegalArgumentException - if this option to this file manager is used incorrectly
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has-location?clj

(has-location? this location)

Determines if a location is known to this file manager.

location - a location - javax.tools.JavaFileManager$Location

returns: true if the location is known - boolean

Determines if a location is known to this file manager.

location - a location - `javax.tools.JavaFileManager$Location`

returns: true if the location is known - `boolean`
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infer-binary-nameclj

(infer-binary-name this location file)

Infers a binary name of a file object based on a location. The binary name returned might not be a valid binary name according to The Java™ Language Specification.

location - a location - javax.tools.JavaFileManager$Location file - a file object - javax.tools.JavaFileObject

returns: a binary name or null the file object is not found in the given location - java.lang.String

throws: java.lang.IllegalStateException - if close() has been called and this file manager cannot be reopened

Infers a binary name of a file object based on a location.  The
 binary name returned might not be a valid binary name according to
 The Java™ Language Specification.

location - a location - `javax.tools.JavaFileManager$Location`
file - a file object - `javax.tools.JavaFileObject`

returns: a binary name or null the file object is not
 found in the given location - `java.lang.String`

throws: java.lang.IllegalStateException - if close() has been called and this file manager cannot be reopened
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listclj

(list this location package-name kinds recurse)

Lists all file objects matching the given criteria in the given location. List file objects in "subpackages" if recurse is true.

Note: even if the given location is unknown to this file manager, it may not return null. Also, an unknown location may not cause an exception.

location - a location - javax.tools.JavaFileManager$Location package-name - a package name - java.lang.String kinds - return objects only of these kinds - java.util.Set recurse - if true include "subpackages" - boolean

returns: an Iterable of file objects matching the given criteria - java.lang.Iterable<javax.tools.JavaFileObject>

throws: java.io.IOException - if an I/O error occurred, or if close() has been called and this file manager cannot be reopened

Lists all file objects matching the given criteria in the given
 location.  List file objects in "subpackages" if recurse is
 true.

 Note: even if the given location is unknown to this file
 manager, it may not return null.  Also, an unknown
 location may not cause an exception.

location - a location - `javax.tools.JavaFileManager$Location`
package-name - a package name - `java.lang.String`
kinds - return objects only of these kinds - `java.util.Set`
recurse - if true include "subpackages" - `boolean`

returns: an Iterable of file objects matching the given criteria - `java.lang.Iterable<javax.tools.JavaFileObject>`

throws: java.io.IOException - if an I/O error occurred, or if close() has been called and this file manager cannot be reopened
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same-file?clj

(same-file? this a b)

Compares two file objects and return true if they represent the same underlying object.

a - a file object - javax.tools.FileObject b - a file object - javax.tools.FileObject

returns: true if the given file objects represent the same underlying object - boolean

throws: java.lang.IllegalArgumentException - if either of the arguments were created with another file manager and this file manager does not support foreign file objects

Compares two file objects and return true if they represent the
 same underlying object.

a - a file object - `javax.tools.FileObject`
b - a file object - `javax.tools.FileObject`

returns: true if the given file objects represent the same
 underlying object - `boolean`

throws: java.lang.IllegalArgumentException - if either of the arguments were created with another file manager and this file manager does not support foreign file objects
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