org.mvel2.optimizers.dynamic

Class DynamicOptimizer

java.lang.Object

org.mvel2.compiler.AbstractParser

org.mvel2.optimizers.AbstractOptimizer

org.mvel2.optimizers.dynamic.DynamicOptimizer

All Implemented Interfaces:

java.io.Serializable, Parser, AccessorOptimizer

public class DynamicOptimizer
extends AbstractOptimizer
implements AccessorOptimizer

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private static DynamicClassLoader	classLoader
static int	COLLECTION
private AccessorOptimizer	firstStage
private static java.util.concurrent.locks.ReadWriteLock	lock
static int	maximumTenure
static int	OBJ_CREATION
private static java.lang.Object	oLock
private static java.util.concurrent.locks.Lock	readLock
static int	REGULAR_ACCESSOR
static int	SET_ACCESSOR
static int	tenuringThreshold
static long	timeSpan
static int	totalRecycled
private static boolean	useSafeClassloading
private static java.util.concurrent.locks.Lock	writeLock

Fields inherited from class org.mvel2.optimizers.AbstractOptimizer

BEAN, COL, collection, currType, METH, nullSafe, staticAccess, tkStart, WITH

Fields inherited from class org.mvel2.compiler.AbstractParser

CLASS_LITERALS, compileMode, ctx, cursor, debugSymbols, dStack, end, expr, fields, GET, GET_OR_CREATE, greedy, lastLineStart, lastNode, lastWasComment, lastWasIdentifier, lastWasLineLabel, length, LEVEL_0_PROPERTY_ONLY, LEVEL_1_BASIC_LANG, LEVEL_2_MULTI_STATEMENT, LEVEL_3_ITERATION, LEVEL_4_ASSIGNMENT, LEVEL_5_CONTROL_FLOW, line, literalOnly, LITERALS, OP_CONTINUE, OP_NOT_LITERAL, OP_OVERFLOW, OP_RESET_FRAME, OP_TERMINATE, OPERATORS, pCtx, REMOVE, SET, splitAccumulator, st, start, stk, variableFactory

Constructor Summary

Constructors

Constructor and Description
DynamicOptimizer()

Method Summary

Modifier and Type	Method and Description
private static void	_init()
static void	enforceTenureLimit()
java.lang.Class	getEgressType()
java.lang.Object	getResultOptPass()
void	init()
boolean	isLiteralOnly()
static boolean	isOverloaded()
Accessor	optimizeAccessor(ParserContext pCtx, char[] property, int start, int offset, java.lang.Object ctx, java.lang.Object thisRef, VariableResolverFactory factory, boolean rootThisRef, java.lang.Class ingressType)
Accessor	optimizeCollection(ParserContext pCtx, java.lang.Object rootObject, java.lang.Class type, char[] property, int start, int offset, java.lang.Object ctx, java.lang.Object thisRef, VariableResolverFactory factory)
Accessor	optimizeObjectCreation(ParserContext pCtx, char[] property, int start, int offset, java.lang.Object ctx, java.lang.Object thisRef, VariableResolverFactory factory)
Accessor	optimizeSetAccessor(ParserContext pCtx, char[] property, int start, int offset, java.lang.Object ctx, java.lang.Object thisRef, VariableResolverFactory factory, boolean rootThisRef, java.lang.Object value, java.lang.Class valueType)

Methods inherited from class org.mvel2.optimizers.AbstractOptimizer

capture, findLastUnion, nextSubToken, scanTo, tryStaticAccess, whiteSpaceSkip

Methods inherited from class org.mvel2.compiler.AbstractParser

addFatalError, addFatalError, arithmeticFunctionReduction, captureIdentifier, captureToEOS, captureToEOSorEOL, captureToEOT, captureToNextTokenJunction, expectEOS, expectNextChar_IW, getCursor, getExpression, handleSubstatement, handleUnion, ifThenElseBlockContinues, incNextNonBlank, isArithmeticOperator, isNextIdentifier, isNextIdentifierOrLiteral, isStatementNotManuallyTerminated, lastNonWhite, loadLanguageFeaturesByLevel, lookAhead, lookAhead, lookBehind, lookToLast, nextNonBlank, nextToken, nextTokenSkipSymbols, reduce, setExpression, setExpression, setLanguageLevel, setupParser, skipWhitespace, tokenContinues, trimLeft, trimRight, trimWhitespace

Methods inherited from class java.lang.Object

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

Field Detail

firstStage

private AccessorOptimizer firstStage

oLock

private static final java.lang.Object oLock

classLoader

private static volatile DynamicClassLoader classLoader

tenuringThreshold

public static int tenuringThreshold

timeSpan

public static long timeSpan

maximumTenure

public static int maximumTenure

totalRecycled

public static int totalRecycled

useSafeClassloading

private static volatile boolean useSafeClassloading

lock

private static java.util.concurrent.locks.ReadWriteLock lock

readLock

private static java.util.concurrent.locks.Lock readLock

writeLock

private static java.util.concurrent.locks.Lock writeLock

REGULAR_ACCESSOR

public static final int REGULAR_ACCESSOR

See Also:

Constant Field Values

SET_ACCESSOR

public static final int SET_ACCESSOR

See Also:

Constant Field Values

COLLECTION

public static final int COLLECTION

See Also:

Constant Field Values

OBJ_CREATION

public static final int OBJ_CREATION

See Also:

Constant Field Values

Constructor Detail

DynamicOptimizer

public DynamicOptimizer()

Method Detail

init

public void init()

Specified by:

init in interface AccessorOptimizer

_init

private static void _init()

enforceTenureLimit

public static void enforceTenureLimit()

optimizeAccessor

public Accessor optimizeAccessor(ParserContext pCtx,
                                 char[] property,
                                 int start,
                                 int offset,
                                 java.lang.Object ctx,
                                 java.lang.Object thisRef,
                                 VariableResolverFactory factory,
                                 boolean rootThisRef,
                                 java.lang.Class ingressType)

Specified by:

optimizeAccessor in interface AccessorOptimizer

optimizeSetAccessor

public Accessor optimizeSetAccessor(ParserContext pCtx,
                                    char[] property,
                                    int start,
                                    int offset,
                                    java.lang.Object ctx,
                                    java.lang.Object thisRef,
                                    VariableResolverFactory factory,
                                    boolean rootThisRef,
                                    java.lang.Object value,
                                    java.lang.Class valueType)

Specified by:

optimizeSetAccessor in interface AccessorOptimizer

optimizeCollection

public Accessor optimizeCollection(ParserContext pCtx,
                                   java.lang.Object rootObject,
                                   java.lang.Class type,
                                   char[] property,
                                   int start,
                                   int offset,
                                   java.lang.Object ctx,
                                   java.lang.Object thisRef,
                                   VariableResolverFactory factory)

Specified by:

optimizeCollection in interface AccessorOptimizer

optimizeObjectCreation

public Accessor optimizeObjectCreation(ParserContext pCtx,
                                       char[] property,
                                       int start,
                                       int offset,
                                       java.lang.Object ctx,
                                       java.lang.Object thisRef,
                                       VariableResolverFactory factory)

Specified by:

optimizeObjectCreation in interface AccessorOptimizer

isOverloaded

public static boolean isOverloaded()

getResultOptPass

public java.lang.Object getResultOptPass()

Specified by:

getResultOptPass in interface AccessorOptimizer

getEgressType

public java.lang.Class getEgressType()

Specified by:

getEgressType in interface AccessorOptimizer

isLiteralOnly

public boolean isLiteralOnly()

Specified by:

isLiteralOnly in interface AccessorOptimizer