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java.lang.Objectcom.opensymphony.xwork2.util.OgnlValueStack
public class OgnlValueStack
Ognl implementation of a value stack that allows for dynamic Ognl expressions to be evaluated against it. When evaluating an expression, the stack will be searched down the stack, from the latest objects pushed in to the earliest, looking for a bean with a getter or setter for the given property or a method of the given name (depending on the expression being evaluated).
| Nested Class Summary | |
|---|---|
static class |
OgnlValueStack.ObjectAccessor
|
| Field Summary |
|---|
| Fields inherited from interface com.opensymphony.xwork2.util.ValueStack |
|---|
REPORT_ERRORS_ON_NO_PROP, VALUE_STACK |
| Constructor Summary | |
|---|---|
OgnlValueStack()
|
|
OgnlValueStack(ValueStack vs)
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|
| Method Summary | |
|---|---|
void |
clearContextValues()
Remove all values from the context |
String |
findString(String expr)
|
Object |
findValue(String expr)
Find a value by evaluating the given expression against the stack in the default search order. |
Object |
findValue(String expr,
Class asType)
Find a value by evaluating the given expression against the stack in the default search order. |
static CompoundRootAccessor |
getAccessor()
|
Map |
getContext()
|
Map |
getExprOverrides()
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CompoundRoot |
getRoot()
Get the CompoundRoot which holds the objects pushed onto the stack |
static void |
link(Map context,
Class clazz,
String name)
|
Object |
peek()
Get the object on the top of the stack without changing the stack. |
Object |
pop()
Get the object on the top of the stack and remove it from the stack. |
void |
push(Object o)
Put this object onto the top of the stack |
static void |
reset()
|
void |
set(String key,
Object o)
Sets an object on the stack with the given key so it is retrievable by findValue(key,...) |
void |
setAcceptProperties(Set<Pattern> acceptedProperties)
|
static void |
setAllowStaticMethodAccess(boolean allowStaticMethodAccess)
|
void |
setDefaultType(Class defaultType)
Sets the default type to convert to if no type is provided when getting a value. |
static void |
setDevMode(String mode)
|
void |
setExcludeProperties(Set<Pattern> excludeProperties)
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void |
setExprOverrides(Map overrides)
|
void |
setValue(String expr,
Object value)
Attempts to set a property on a bean in the stack with the given expression using the default search order. |
void |
setValue(String expr,
Object value,
boolean throwExceptionOnFailure)
Attempts to set a property on a bean in the stack with the given expression using the default search order. |
int |
size()
Get the number of objects in the stack s |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public OgnlValueStack()
public OgnlValueStack(ValueStack vs)
| Method Detail |
|---|
public static void reset()
public static void link(Map context,
Class clazz,
String name)
public static CompoundRootAccessor getAccessor()
public static void setDevMode(String mode)
public static void setAllowStaticMethodAccess(boolean allowStaticMethodAccess)
public Map getContext()
getContext in interface ValueStackpublic void setDefaultType(Class defaultType)
ValueStack
setDefaultType in interface ValueStackpublic void setExprOverrides(Map overrides)
setExprOverrides in interface ValueStackpublic Map getExprOverrides()
getExprOverrides in interface ValueStackpublic CompoundRoot getRoot()
ValueStack
getRoot in interface ValueStack
public void setValue(String expr,
Object value)
ValueStack
setValue in interface ValueStackexpr - the expression defining the path to the property to be set.value - the value to be set into the neamed property
public void setValue(String expr,
Object value,
boolean throwExceptionOnFailure)
ValueStack
setValue in interface ValueStackexpr - the expression defining the path to the property to be set.value - the value to be set into the neamed propertythrowExceptionOnFailure - a flag to tell whether an exception should be thrown if there is no property with
the given name.public String findString(String expr)
findString in interface ValueStackpublic Object findValue(String expr)
ValueStack
findValue in interface ValueStackexpr - the expression giving the path of properties to navigate to find the property value to return
public Object findValue(String expr,
Class asType)
ValueStack
findValue in interface ValueStackexpr - the expression giving the path of properties to navigate to find the property value to returnasType - the type to convert the return value to
public Object peek()
ValueStack
peek in interface ValueStackCompoundRoot.peek()public Object pop()
ValueStack
pop in interface ValueStackCompoundRoot.pop()public void push(Object o)
ValueStack
push in interface ValueStacko - the object to be pushed onto the stackCompoundRoot.push(Object)
public void set(String key,
Object o)
ValueStack
set in interface ValueStackpublic int size()
ValueStack
size in interface ValueStackpublic void clearContextValues()
ClearableValueStack
clearContextValues in interface ClearableValueStackpublic void setAcceptProperties(Set<Pattern> acceptedProperties)
setAcceptProperties in interface MemberAccessValueStackpublic void setExcludeProperties(Set<Pattern> excludeProperties)
setExcludeProperties in interface MemberAccessValueStack
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