Package io.deephaven.engine.context

Class QueryCompilerImpl

java.lang.Object

io.deephaven.engine.context.QueryCompilerImpl

All Implemented Interfaces:

LogOutputAppendable, QueryCompiler

public class QueryCompilerImpl
extends Object
implements QueryCompiler, LogOutputAppendable

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DYNAMIC_CLASS_PREFIX
static final String	FORMULA_CLASS_PREFIX

Method Summary

Modifier and Type	Method	Description
LogOutput	append(LogOutput logOutput)
void	compile(@NotNull QueryCompilerRequest[] requests, @NotNull CompletionStageFuture.Resolver<Class<?>>[] resolvers)	Compiles all requests.
static QueryCompilerImpl	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)
static boolean	setLogEnabled(boolean logEnabled)	Enables or disables compilation logging.
String	toString()
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, wait, wait, wait

Methods inherited from interface io.deephaven.engine.context.QueryCompiler

compile, compile

Field Details

FORMULA_CLASS_PREFIX

public static final String FORMULA_CLASS_PREFIX

See Also:

• Constant Field Values

DYNAMIC_CLASS_PREFIX

public static final String DYNAMIC_CLASS_PREFIX

See Also:

• Constant Field Values

Method Details

create

public static QueryCompilerImpl create(File cacheDirectory,
 ClassLoader classLoader)

append

public LogOutput append(LogOutput logOutput)

Specified by:

append in interface LogOutputAppendable

toString

public String toString()

Overrides:

toString in class Object

setLogEnabled

public static boolean setLogEnabled(boolean logEnabled)

Enables or disables compilation logging.

Parameters:

logEnabled - Whether 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

compile

public void compile(@NotNull
 @NotNull QueryCompilerRequest[] requests,
 @NotNull
 @NotNull CompletionStageFuture.Resolver<Class<?>>[] resolvers)

Description copied from interface: QueryCompiler

Compiles all requests.

Specified by:

compile in interface QueryCompiler

Parameters:

requests - The compilation requests; these must be independent of each other

resolvers - The resolvers to use for delivering compilation results

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)