Package io.deephaven.engine.context

Class QueryCompiler

java.lang.Object

io.deephaven.engine.context.QueryCompiler

Direct Known Subclasses:

PoisonedQueryCompiler

public class QueryCompiler
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DYNAMIC_GROOVY_CLASS_PREFIX
static final String	FORMULA_PREFIX

Method Summary

Modifier and Type	Method	Description
Class<?>	compile(@NotNull String className, @NotNull String classBody, @NotNull String packageNameRoot, @Nullable StringBuilder codeLog, @NotNull Map<String,Class<?>> parameterClasses)	Compile a class.
final Class<?>	compile(String className, String classBody, String packageNameRoot)
final Class<?>	compile(String className, String classBody, String packageNameRoot, StringBuilder codeLog)
final Class<?>	compile(String className, String classBody, String packageNameRoot, Map<String,Class<?>> parameterClasses)
static QueryCompiler	create(File cacheDirectory, ClassLoader classLoader)
static String	createEscapedJoinedString(String originalString)	Transform a string into the corresponding Java source code that compiles into that string.
static String	createEscapedJoinedString(String originalString, int maxStringLength)
File	getFakeClassDestination()
static boolean	setLogEnabled(boolean logEnabled)	Enables or disables compilation logging.
void	setParentClassLoader(ClassLoader parentClassLoader)
static void	writeClass(File destinationDirectory, String className, byte[] data)
static void	writeClass(File destinationDirectory, String className, byte[] data, String message)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

FORMULA_PREFIX

public static final String FORMULA_PREFIX

See Also:

• Constant Field Values

DYNAMIC_GROOVY_CLASS_PREFIX

public static final String DYNAMIC_GROOVY_CLASS_PREFIX

See Also:

• Constant Field Values

Method Details

create

public static QueryCompiler create(File cacheDirectory,
 ClassLoader classLoader)

setLogEnabled

public static boolean setLogEnabled(boolean logEnabled)

Enables or disables compilation logging.

Parameters:

logEnabled - Whether or not logging should be enabled

Returns:

The value of logEnabled before calling this method.

writeClass

public static void writeClass(File destinationDirectory,
 String className,
 byte[] data)
                       throws IOException

Throws:

IOException

writeClass

public static void writeClass(File destinationDirectory,
 String className,
 byte[] data,
 String message)
                       throws IOException

Throws:

IOException

getFakeClassDestination

public File getFakeClassDestination()

setParentClassLoader

public void setParentClassLoader(ClassLoader parentClassLoader)

compile

public final Class<?> compile(String className,
 String classBody,
 String packageNameRoot)

compile

public final Class<?> compile(String className,
 String classBody,
 String packageNameRoot,
 Map<String,Class<?>> parameterClasses)

compile

public final Class<?> compile(String className,
 String classBody,
 String packageNameRoot,
 StringBuilder codeLog)

compile

public Class<?> compile(@NotNull
 @NotNull String className,
 @NotNull
 @NotNull String classBody,
 @NotNull
 @NotNull String packageNameRoot,
 @Nullable
 @Nullable StringBuilder codeLog,
 @NotNull
 @NotNull Map<String,Class<?>> parameterClasses)

Compile a class.

Parameters:

className - Class name

classBody - Class body, before update with "$CLASS_NAME$" replacement and package name prefixing

packageNameRoot - Package name prefix

codeLog - Optional "log" for final class code

parameterClasses - Generic parameters, empty if none required

Returns:

The compiled class

createEscapedJoinedString

public static String createEscapedJoinedString(String originalString)

Transform a string into the corresponding Java source code that compiles into that string. This involves escaping special characters, surrounding it with quotes, and (if the string is larger than the max string length for Java literals), splitting it into substrings and constructing a call to String.join() that combines those substrings.

createEscapedJoinedString

public static String createEscapedJoinedString(String originalString,
 int maxStringLength)