Modifier and Type	Class and Description
pack-priv static class	SourceCompiler.ClassFileManager An in-memory class file manager.
private static class	SourceCompiler.GroovyCompiler Access the Groovy compiler using reflection, so that we do not gain a compile-time dependency unnecessarily.
pack-priv static class	SourceCompiler.JavaClassObject An in-memory java class object.
pack-priv static class	SourceCompiler.StringJavaFileObject An in-memory java source file object.

Modifier and Type	Field and Description
private static final String	COMPILE_DIR
pack-priv final HashMap<String, Class<?>>	compiled The class name to byte code map.
pack-priv final Map<String, CompiledScript>	compiledScripts The class name to compiled scripts map.
pack-priv static final JavaCompiler	JAVA_COMPILER The "com.sun.tools.javac.Main" (if available).
private static final Class<?>	JAVAC_SUN
pack-priv final HashMap<String, String>	sources The class name to source code map.
pack-priv boolean	useJavaSystemCompiler Whether to use the ToolProvider.getSystemJavaCompiler().

Access	Constructor and Description
public	SourceCompiler()

Method Summary

Modifier and Type	Method and Description
private static void	copyInThread(final InputStream in, final OutputStream out)
private static int	exec(String... args)
public Class<?>	Returns: the class getClass(String the class name packageAndClassName) Get the class object for the given name.
public CompiledScript	Returns: the compiled script getCompiledScript(String the package and class name packageAndClassName) Get the compiled script.
pack-priv static String	Returns: the full source code getCompleteSourceCode(String the package name packageName, String the class name className, String the (possibly shortened) source code source) Get the complete source code (including package name, imports, and so on).
public Method	Returns: the method name getMethod(String the class name className) Get the first public static method of the given class.
private static void	handleSyntaxError(String output, int exitStatus)
private static boolean	isGroovySource(String source)
private static boolean	isJavascriptSource(String source)
public static boolean	Returns: `true` if `getCompiledScript(String)` can be called. isJavaxScriptSource(String the source to test. source) Whether the passed source can be compiled using `javax.script.ScriptEngineManager`.
private static boolean	isRubySource(String source)
pack-priv byte[]	Returns: the class file javacCompile(String the package name packageName, String the class name className, String the source code source) Compile the given class.
private static void	javacProcess(Path javaFile)
private static synchronized void	javacSun(Path javaFile)
pack-priv Class<?>	Returns: the class javaxToolsJavac(String the package name packageName, String the class name className, String the source code source) Compile using the standard java compiler.
public void	setJavaSystemCompiler(boolean true to enable enabled) Enable or disable the usage of the Java system compiler.
public void	setSource(String the class name className, String the source code source) Set the source code for the specified class.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

COMPILE_DIR	back to summary
private static final String COMPILE_DIR

compiled	back to summary
pack-priv final HashMap<String, Class<?>> compiled The class name to byte code map.

compiledScripts	back to summary
pack-priv final Map<String, CompiledScript> compiledScripts The class name to compiled scripts map.

JAVA_COMPILER	back to summary
pack-priv static final JavaCompiler JAVA_COMPILER The "com.sun.tools.javac.Main" (if available).

JAVAC_SUN	back to summary
private static final Class<?> JAVAC_SUN

sources	back to summary
pack-priv final HashMap<String, String> sources The class name to source code map.

useJavaSystemCompiler	back to summary
pack-priv boolean useJavaSystemCompiler Whether to use the ToolProvider.getSystemJavaCompiler().

SourceCompiler	back to summary
public SourceCompiler()

Method Detail

copyInThread	back to summary
private static void copyInThread(final InputStream in, final OutputStream out)

exec	back to summary
private static int exec(String... args)

getClass	back to summary
public Class<?> getClass(String packageAndClassName) throws ClassNotFoundException Get the class object for the given name. Parameters packageAndClassName:String the class name Returns:Class<?> the class Exceptions ClassNotFoundException: on failure

getClass

back to summary

public Class<?> getClass(String packageAndClassName) throws ClassNotFoundException

Get the class object for the given name.

Parameters

packageAndClassName:String: the class name

Returns:Class<?>

the class

Exceptions

ClassNotFoundException:: on failure

getCompiledScript	back to summary
public CompiledScript getCompiledScript(String packageAndClassName) throws ScriptException Get the compiled script. Parameters packageAndClassName:String the package and class name Returns:CompiledScript the compiled script Exceptions ScriptException: on failure

getCompiledScript

back to summary

public CompiledScript getCompiledScript(String packageAndClassName) throws ScriptException

Get the compiled script.

Parameters

packageAndClassName:String: the package and class name

Returns:CompiledScript

the compiled script

Exceptions

ScriptException:: on failure

getCompleteSourceCode	back to summary
pack-priv static String getCompleteSourceCode(String packageName, String className, String source) Get the complete source code (including package name, imports, and so on). Parameters packageName:String the package name className:String the class name source:String the (possibly shortened) source code Returns:String the full source code

getCompleteSourceCode

back to summary

pack-priv static String getCompleteSourceCode(String packageName, String className, String source)

Get the complete source code (including package name, imports, and so on).

Parameters

packageName:String: the package name
className:String: the class name
source:String: the (possibly shortened) source code

Returns:String

the full source code

getMethod	back to summary
public Method getMethod(String className) throws ClassNotFoundException Get the first public static method of the given class. Parameters className:String the class name Returns:Method the method name Exceptions ClassNotFoundException: on failure

getMethod

back to summary

public Method getMethod(String className) throws ClassNotFoundException

Get the first public static method of the given class.

Parameters

className:String: the class name

Returns:Method

the method name

Exceptions

ClassNotFoundException:: on failure

handleSyntaxError	back to summary
private static void handleSyntaxError(String output, int exitStatus)

isGroovySource	back to summary
private static boolean isGroovySource(String source)

isJavascriptSource	back to summary
private static boolean isJavascriptSource(String source)

isJavaxScriptSource back to summary

isJavaxScriptSource	back to summary
public static boolean isJavaxScriptSource(String source) Whether the passed source can be compiled using `javax.script.ScriptEngineManager`. Parameters source:String the source to test. Returns:boolean `true` if `getCompiledScript(String)` can be called.

public static boolean isJavaxScriptSource(String source)

Whether the passed source can be compiled using javax.script.ScriptEngineManager.

Parameters

source:String: the source to test.

Returns:boolean

true if getCompiledScript(String) can be called.

isRubySource	back to summary
private static boolean isRubySource(String source)

javacCompile	back to summary
pack-priv byte[] javacCompile(String packageName, String className, String source) Compile the given class. This method tries to use the class "com.sun.tools.javac.Main" if available. If not, it tries to run "javac" in a separate process. Parameters packageName:String the package name className:String the class name source:String the source code Returns:byte[] the class file

javacCompile

back to summary

pack-priv byte[] javacCompile(String packageName, String className, String source)

Compile the given class. This method tries to use the class "com.sun.tools.javac.Main" if available. If not, it tries to run "javac" in a separate process.

Parameters

packageName:String: the package name
className:String: the class name
source:String: the source code

Returns:byte[]

the class file

javacProcess	back to summary
private static void javacProcess(Path javaFile)

javacSun	back to summary
private static synchronized void javacSun(Path javaFile)

javaxToolsJavac	back to summary
pack-priv Class<?> javaxToolsJavac(String packageName, String className, String source) Compile using the standard java compiler. Parameters packageName:String the package name className:String the class name source:String the source code Returns:Class<?> the class

javaxToolsJavac

back to summary

pack-priv Class<?> javaxToolsJavac(String packageName, String className, String source)

Compile using the standard java compiler.

Parameters

packageName:String: the package name
className:String: the class name
source:String: the source code

Returns:Class<?>

the class

setJavaSystemCompiler	back to summary
public void setJavaSystemCompiler(boolean enabled) Enable or disable the usage of the Java system compiler. Parameters enabled:boolean true to enable

setJavaSystemCompiler

back to summary

public void setJavaSystemCompiler(boolean enabled)

Enable or disable the usage of the Java system compiler.

Parameters

enabled:boolean: true to enable

setSource	back to summary
public void setSource(String className, String source) Set the source code for the specified class. This will reset all compiled classes. Parameters className:String the class name source:String the source code

setSource

back to summary

public void setSource(String className, String source)

Set the source code for the specified class. This will reset all compiled classes.

Parameters

className:String: the class name
source:String: the source code

org.h2.util back to summary

pack-priv Class SourceCompiler.ClassFileManager

Class Inheritance

extends ForwardingJavaFileManager<StandardJavaFileManager>

java.lang.Object
javax.tools.ForwardingJavaFileManager
org.h2.util.SourceCompiler.ClassFileManager

An in-memory class file manager.

Field Summary

Modifier and Type	Field and Description
private SecureClassLoader	classLoader
pack-priv Map<String, SourceCompiler.JavaClassObject>	classObjectsByName We use map because there can be nested, anonymous etc classes.

Inherited from javax.tools.ForwardingJavaFileManager:: fileManager

Constructor Summary

Access	Constructor and Description
public	ClassFileManager(StandardJavaFileManager standardManager)

Method Summary

Modifier and Type Method and Description

Modifier and Type	Method and Description
public ClassLoader	getClassLoader(JavaFileManager.Location a location location) Overrides javax.tools.ForwardingJavaFileManager.getClassLoader. Implements javax.tools.JavaFileManager.getClassLoader. Returns a class loader for loading plug-ins from the given package-oriented location.
public JavaFileObject	getJavaFileForOutput(JavaFileManager.Location a package-oriented location location, String the name of a class className, JavaFileObject.Kind the kind of file, must be one of `SOURCE` or `CLASS` kind, FileObject a file object to be used as hint for placement; might be `null` sibling) Overrides javax.tools.ForwardingJavaFileManager.getJavaFileForOutput. Implements javax.tools.JavaFileManager.getJavaFileForOutput. Returns a file object for output representing the specified class of the specified kind in the given package-oriented location.

public ClassLoader

getClassLoader(JavaFileManager.Location

a location

location)

Overrides javax.tools.ForwardingJavaFileManager.getClassLoader.

Implements javax.tools.JavaFileManager.getClassLoader.

Returns a class loader for loading plug-ins from the given package-oriented location.

public JavaFileObject

getJavaFileForOutput(JavaFileManager.Location

a package-oriented location

location, String

the name of a class

className, JavaFileObject.Kind

the kind of file, must be one of SOURCE or CLASS

kind, FileObject

a file object to be used as hint for placement; might be null

sibling)

Overrides javax.tools.ForwardingJavaFileManager.getJavaFileForOutput.

Implements javax.tools.JavaFileManager.getJavaFileForOutput.

Returns a file object for output representing the specified class of the specified kind in the given package-oriented location.

Field Detail

classLoader	back to summary
private SecureClassLoader classLoader

classObjectsByName	back to summary
pack-priv Map<String, SourceCompiler.JavaClassObject> classObjectsByName We use map because there can be nested, anonymous etc classes.

Constructor Detail

ClassFileManager	back to summary
public ClassFileManager(StandardJavaFileManager standardManager)

Method Detail

getClassLoader back to summary

getClassLoader	back to summary
public ClassLoader getClassLoader(JavaFileManager.Location location) Overrides javax.tools.ForwardingJavaFileManager.getClassLoader. Implements javax.tools.JavaFileManager.getClassLoader. Doc from javax.tools.JavaFileManager.getClassLoader. Returns a class loader for loading plug-ins from the given package-oriented location. For example, to load annotation processors, a compiler will request a class loader for the `ANNOTATION_PROCESSOR_PATH` location. Parameters location:JavaFileManager.Location a location Returns:ClassLoader 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 Annotations @Override

public ClassLoader getClassLoader(JavaFileManager.Location location)

Overrides javax.tools.ForwardingJavaFileManager.getClassLoader.

Implements javax.tools.JavaFileManager.getClassLoader.

Doc from javax.tools.JavaFileManager.getClassLoader.

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

Parameters

location:JavaFileManager.Location: a location

Returns:ClassLoader

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

Annotations

@Override

getJavaFileForOutput back to summary

getJavaFileForOutput	back to summary
public JavaFileObject getJavaFileForOutput(JavaFileManager.Location location, String className, JavaFileObject.Kind kind, FileObject sibling) throws IOException Overrides javax.tools.ForwardingJavaFileManager.getJavaFileForOutput. Implements javax.tools.JavaFileManager.getJavaFileForOutput. Doc from javax.tools.JavaFileManager.getJavaFileForOutput. Returns a file object for output representing the specified class of the specified kind in the given package-oriented 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. Parameters location:JavaFileManager.Location a package-oriented location className:String the name of a class kind:JavaFileObject.Kind the kind of file, must be one of `SOURCE` or `CLASS` sibling:FileObject a file object to be used as hint for placement; might be `null` Returns:JavaFileObject a file object for output Annotations @Override Exceptions IOException: if an I/O error occurred, or if `close` has been called and this file manager cannot be reopened

public JavaFileObject getJavaFileForOutput(JavaFileManager.Location location, String className, JavaFileObject.Kind kind, FileObject sibling) throws IOException

Overrides javax.tools.ForwardingJavaFileManager.getJavaFileForOutput.

Implements javax.tools.JavaFileManager.getJavaFileForOutput.

Doc from javax.tools.JavaFileManager.getJavaFileForOutput.

Returns a file object for output representing the specified class of the specified kind in the given package-oriented 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.

Parameters

location:JavaFileManager.Location: a package-oriented location
className:String: the name of a class
kind:JavaFileObject.Kind: the kind of file, must be one of SOURCE or CLASS
sibling:FileObject: a file object to be used as hint for placement; might be null

Returns:JavaFileObject

a file object for output

Annotations

@Override

Exceptions

IOException:: if an I/O error occurred, or if close has been called and this file manager cannot be reopened

org.h2.util back to summary

private final Class SourceCompiler.GroovyCompiler

Class Inheritance

extends Object

java.lang.Object
org.h2.util.SourceCompiler.GroovyCompiler

Access the Groovy compiler using reflection, so that we do not gain a compile-time dependency unnecessarily.

Field Summary

Modifier and Type	Field and Description
private static final Throwable	INIT_FAIL_EXCEPTION
private static final Object	LOADER

Constructor Summary

Access	Constructor and Description
private	GroovyCompiler()

Method Summary

Modifier and Type	Method and Description
public static Class<?>	parseClass(String source, String packageAndClassName)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

INIT_FAIL_EXCEPTION	back to summary
private static final Throwable INIT_FAIL_EXCEPTION

LOADER	back to summary
private static final Object LOADER

Constructor Detail

GroovyCompiler	back to summary
private GroovyCompiler()

Method Detail

parseClass	back to summary
public static Class<?> parseClass(String source, String packageAndClassName)

org.h2.util back to summary

pack-priv Class SourceCompiler.JavaClassObject

Class Inheritance

extends SimpleJavaFileObject

java.lang.Object
javax.tools.SimpleJavaFileObject
org.h2.util.SourceCompiler.JavaClassObject

An in-memory java class object.

Field Summary

Modifier and Type	Field and Description
private final ByteArrayOutputStream	out

Inherited from javax.tools.SimpleJavaFileObject:: kind uri

Constructor Summary

Access	Constructor and Description
public	JavaClassObject(String name, JavaFileObject.Kind kind)

Method Summary

Modifier and Type	Method and Description
public byte[]	getBytes()
public OutputStream	openOutputStream() Overrides javax.tools.SimpleJavaFileObject.openOutputStream. Implements javax.tools.FileObject.openOutputStream. Returns an OutputStream for this file object.

Inherited from javax.tools.SimpleJavaFileObject:: delete forSource getAccessLevel getCharContent getKind getLastModified getName getNestingKind isNameCompatible openInputStream openReader openWriter toString toUri

Field Detail

out	back to summary
private final ByteArrayOutputStream out

Constructor Detail

JavaClassObject	back to summary
public JavaClassObject(String name, JavaFileObject.Kind kind)

Method Detail

getBytes	back to summary
public byte[] getBytes()

openOutputStream

back to summary

public OutputStream openOutputStream() throws IOException

Overrides javax.tools.SimpleJavaFileObject.openOutputStream.

Implements javax.tools.FileObject.openOutputStream.

Doc from javax.tools.SimpleJavaFileObject.openOutputStream.

Returns an OutputStream for this file object.

Returns:OutputStream

Doc from javax.tools.FileObject.openOutputStream.

an OutputStream

Annotations

@Override

Exceptions

IOException:

Doc from javax.tools.FileObject.openOutputStream.

if an I/O error occurred

org.h2.util back to summary

pack-priv Class SourceCompiler.StringJavaFileObject

Class Inheritance

extends SimpleJavaFileObject

java.lang.Object
javax.tools.SimpleJavaFileObject
org.h2.util.SourceCompiler.StringJavaFileObject

An in-memory java source file object.

Field Summary

Modifier and Type	Field and Description
private final String	sourceCode

Inherited from javax.tools.SimpleJavaFileObject:: kind uri

Constructor Summary

Access	Constructor and Description
public	StringJavaFileObject(String className, String sourceCode)

Method Summary

Modifier and Type	Method and Description
public CharSequence	getCharContent(boolean ignore encoding errors if true ignoreEncodingErrors) Overrides javax.tools.SimpleJavaFileObject.getCharContent. Implements javax.tools.FileObject.getCharContent. Returns the character content of this file object, if available.

Inherited from javax.tools.SimpleJavaFileObject:: delete forSource getAccessLevel getKind getLastModified getName getNestingKind isNameCompatible openInputStream openOutputStream openReader openWriter toString toUri

Field Detail

sourceCode	back to summary
private final String sourceCode

Constructor Detail

StringJavaFileObject	back to summary
public StringJavaFileObject(String className, String sourceCode)

Method Detail

getCharContent back to summary

public CharSequence getCharContent(boolean ignoreEncodingErrors)

Overrides javax.tools.SimpleJavaFileObject.getCharContent.

Implements javax.tools.FileObject.getCharContent.

Doc from javax.tools.SimpleJavaFileObject.getCharContent.

Returns the character content of this file object, if available. Any byte that cannot be decoded will be replaced by the default translation character. In addition, a diagnostic may be reported unless ignoreEncodingErrors is true.

Parameters

ignoreEncodingErrors:boolean

Doc from javax.tools.FileObject.getCharContent.

ignore encoding errors if true

Returns:CharSequence

Doc from javax.tools.FileObject.getCharContent.

a CharSequence if available; null otherwise

Annotations

@Override

public Class SourceCompiler

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

pack-priv Class SourceCompiler.ClassFileManager

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private final Class SourceCompiler.GroovyCompiler

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

pack-priv Class SourceCompiler.JavaClassObject

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

pack-priv Class SourceCompiler.StringJavaFileObject

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail