Class PropertyAccessor

java.lang.Object

org.mvel2.PropertyAccessor

public class PropertyAccessor
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	COL
private Object	ctx
private Object	curr
private Class	currType
private int	cursor
private static final Object[]	EMPTYARG
private int	end
private boolean	first
private int	length
private static final int	METH
private static final Map<Member, WeakReference<Class[]>>	METHOD_PARMTYPES_CACHE
private static final Map<Class, WeakHashMap<Integer, WeakReference<Object[]>>>	METHOD_RESOLVER_CACHE
private static final int	NORM
private boolean	nullHandle
private ParserContext	pCtx
private char[]	property
private static final Map<Class, WeakHashMap<Integer, WeakReference<Member>>>	READ_PROPERTY_RESOLVER_CACHE
private int	st
private int	start
private Object	thisReference
private VariableResolverFactory	variableFactory
private static final int	WITH
private static final Map<Class, WeakHashMap<Integer, WeakReference<Member>>>	WRITE_PROPERTY_RESOLVER_CACHE

Constructor Summary

Constructors

Constructor	Description
PropertyAccessor(char[] property, int start, int offset, Object ctx, VariableResolverFactory resolver, Object thisReference, ParserContext pCtx)
PropertyAccessor(char[] property, Object ctx, VariableResolverFactory resolver, Object thisReference, ParserContext pCtx)
PropertyAccessor(String property, Object ctx)

Method Summary

Modifier and Type	Method	Description
private static void	addMethodCache(Class cls, Integer property, Method member)
private static void	addReadCache(Class cls, Integer property, Member member)
private static void	addWriteCache(Class cls, Integer property, Member member)
private String	capture()
private static Object[]	checkMethodCache(Class cls, Integer property)
static Class[]	checkParmTypesCache(Method member)
private static Member	checkReadCache(Class cls, Integer property)
private static Member	checkWriteCache(Class cls, Integer property)
static void	clearPropertyResolverCache()
private static int	createSignature(String name, String args)
private Object	get()
static Object	get(char[] property, int offset, int end, Object ctx, VariableResolverFactory resolver, Object thisReferece, ParserContext pCtx)
static Object	get(String property, Object ctx)
static Object	get(String property, Object ctx, VariableResolverFactory resolver, Object thisReference, ParserContext pCtx)
private Object	getAllowOverride()
private Object	getBeanProperty(Object ctx, String property)
private Object	getBeanPropertyAO(Object ctx, String property)
private ClassLoader	getClassLoader()
private Object	getCollectionProperty(Object ctx, String prop)	Handle accessing a property embedded in a collections, map, or array
private Object	getCollectionPropertyAO(Object ctx, String prop)
private Object	getMethod(Object ctx, String name)	Find an appropriate method, execute it, and return it's response.
private Object	getNormal()
private Object	getWithProperty(Object ctx)
private int	nextToken()
static void	reportCacheSizes()
private boolean	scanTo(char c)
private void	set(Object value)
static void	set(Object ctx, String property, Object value)
static void	set(Object ctx, VariableResolverFactory resolver, String property, Object value, ParserContext pCtx)
protected int	trimLeft(int pos)
protected Object	tryStaticAccess()	Try static access of the property, and return an instance of the Field, Method of Class if successful.
private void	whiteSpaceSkip()

Methods inherited from class Object

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

Field Details

start

private int start

cursor

private int cursor

st

private int st

property

private char[] property

length

private int length

end

private int end

thisReference

private Object thisReference

ctx

private Object ctx

curr

private Object curr

currType

private Class currType

first

private boolean first

nullHandle

private boolean nullHandle

variableFactory

private VariableResolverFactory variableFactory

pCtx

private ParserContext pCtx

NORM

private static final int NORM

See Also:

• Constant Field Values

METH

private static final int METH

See Also:

• Constant Field Values

COL

private static final int COL

See Also:

• Constant Field Values

WITH

private static final int WITH

See Also:

• Constant Field Values

EMPTYARG

private static final Object[] EMPTYARG

READ_PROPERTY_RESOLVER_CACHE

private static final Map<Class, WeakHashMap<Integer, WeakReference<Member>>> READ_PROPERTY_RESOLVER_CACHE

WRITE_PROPERTY_RESOLVER_CACHE

private static final Map<Class, WeakHashMap<Integer, WeakReference<Member>>> WRITE_PROPERTY_RESOLVER_CACHE

METHOD_RESOLVER_CACHE

private static final Map<Class, WeakHashMap<Integer, WeakReference<Object[]>>> METHOD_RESOLVER_CACHE

METHOD_PARMTYPES_CACHE

private static final Map<Member, WeakReference<Class[]>> METHOD_PARMTYPES_CACHE

Constructor Details

PropertyAccessor

public PropertyAccessor(String property,
 Object ctx)

PropertyAccessor

public PropertyAccessor(char[] property,
 Object ctx,
 VariableResolverFactory resolver,
 Object thisReference,
 ParserContext pCtx)

PropertyAccessor

public PropertyAccessor(char[] property,
 int start,
 int offset,
 Object ctx,
 VariableResolverFactory resolver,
 Object thisReference,
 ParserContext pCtx)

Method Details

get

public static Object get(String property,
 Object ctx)

get

public static Object get(char[] property,
 int offset,
 int end,
 Object ctx,
 VariableResolverFactory resolver,
 Object thisReferece,
 ParserContext pCtx)

get

public static Object get(String property,
 Object ctx,
 VariableResolverFactory resolver,
 Object thisReference,
 ParserContext pCtx)

set

public static void set(Object ctx,
 String property,
 Object value)

set

public static void set(Object ctx,
 VariableResolverFactory resolver,
 String property,
 Object value,
 ParserContext pCtx)

get

private Object get()

getNormal

private Object getNormal()
                  throws Exception

Throws:

Exception

getAllowOverride

private Object getAllowOverride()
                         throws Exception

Throws:

Exception

set

private void set(Object value)

nextToken

private int nextToken()

capture

private String capture()

trimLeft

protected int trimLeft(int pos)

clearPropertyResolverCache

public static void clearPropertyResolverCache()

reportCacheSizes

public static void reportCacheSizes()

addReadCache

private static void addReadCache(Class cls,
 Integer property,
 Member member)

checkReadCache

private static Member checkReadCache(Class cls,
 Integer property)

addWriteCache

private static void addWriteCache(Class cls,
 Integer property,
 Member member)

checkWriteCache

private static Member checkWriteCache(Class cls,
 Integer property)

checkParmTypesCache

public static Class[] checkParmTypesCache(Method member)

addMethodCache

private static void addMethodCache(Class cls,
 Integer property,
 Method member)

checkMethodCache

private static Object[] checkMethodCache(Class cls,
 Integer property)

getBeanPropertyAO

private Object getBeanPropertyAO(Object ctx,
 String property)
                          throws IllegalAccessException,
InvocationTargetException

Throws:

IllegalAccessException

InvocationTargetException

getBeanProperty

private Object getBeanProperty(Object ctx,
 String property)
                        throws IllegalAccessException,
InvocationTargetException

Throws:

IllegalAccessException

InvocationTargetException

whiteSpaceSkip

private void whiteSpaceSkip()

scanTo

private boolean scanTo(char c)

Parameters:

c - - character to scan to.

Returns:

- returns true is end of statement is hit, false if the scan scar is countered.

getWithProperty

private Object getWithProperty(Object ctx)

getCollectionProperty

private Object getCollectionProperty(Object ctx,
 String prop)
                              throws Exception

Handle accessing a property embedded in a collections, map, or array

Parameters:

ctx - -

prop - -

Returns:

-

Throws:

Exception - -

getCollectionPropertyAO

private Object getCollectionPropertyAO(Object ctx,
 String prop)
                                throws Exception

Throws:

Exception

getMethod

private Object getMethod(Object ctx,
 String name)

Find an appropriate method, execute it, and return it's response.

Parameters:

ctx - -

name - -

Returns:

-

createSignature

private static int createSignature(String name,
 String args)

getClassLoader

private ClassLoader getClassLoader()

tryStaticAccess

protected Object tryStaticAccess()

Try static access of the property, and return an instance of the Field, Method of Class if successful.

Returns:

- Field, Method or Class instance.