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Java Source Code / Java Documentation » J2EE » webwork 2.2.6 » com.opensymphony.xwork.util   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    com.opensymphony.xwork.util.OgnlValueStack OgnlValueStack public class OgnlValueStack implements Serializable(Code) OgnlValueStack allows multiple beans to be pushed in and 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). author:    Patrick Lightbody Inner Class :public static class ObjectAccessor extends ObjectPropertyAccessor Field Summary final public static  String REPORT_ERRORS_ON_NO_PROP      final public static  String VALUE_STACK      transient  Map context       Class defaultType       Map overrides       CompoundRoot root      Constructor Summary public   OgnlValueStack()      public   OgnlValueStack(OgnlValueStack vs)      Method Summary public  String findString(String expr)      public  Object findValue(String expr)      Find a value by evaluating the given expression against the stack in the default search order. public  Object findValue(String expr, Class asType)      Find a value by evaluating the given expression against the stack in the default search order. public static  CompoundRootAccessor getAccessor()      public  Map getContext()      public  CompoundRoot getRoot()      public  boolean isDevModeEnabled()      Determine whether devMode is enabled. public static  void link(Map context, Class clazz, String name)      public  Object peek()      Get the object on the top of the stack without changing the stack. public  Object pop()      Get the object on the top of the stack and remove it from the stack. public  void push(Object o)      public static  void reset()      public  void setDefaultType(Class defaultType)      Sets the default type to convert to if no type is provided when getting a value. public  void setExprOverrides(Map overrides)      public  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. public  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. public  int size()      Field Detail REPORT_ERRORS_ON_NO_PROP final public static String REPORT_ERRORS_ON_NO_PROP(Code) VALUE_STACK final public static String VALUE_STACK(Code) context transient Map context(Code) defaultType Class defaultType(Code) overrides Map overrides(Code) root CompoundRoot root(Code) Constructor Detail OgnlValueStack public OgnlValueStack()(Code) OgnlValueStack public OgnlValueStack(OgnlValueStack vs)(Code) Method Detail findString public String findString(String expr)(Code) findValue public Object findValue(String expr)(Code) Find a value by evaluating the given expression against the stack in the default search order. Parameters:   expr - the expression giving the path of properties to navigate to find the property value to return the result of evaluating the expression findValue public Object findValue(String expr, Class asType)(Code) Find a value by evaluating the given expression against the stack in the default search order. Parameters:   expr - the expression giving the path of properties to navigate to find the property value to return Parameters:   asType - the type to convert the return value to the result of evaluating the expression getAccessor public static CompoundRootAccessor getAccessor()(Code) getContext public Map getContext()(Code) getRoot public CompoundRoot getRoot()(Code) Get the CompoundRoot which holds the objects pushed onto the stack isDevModeEnabled public boolean isDevModeEnabled()(Code) Determine whether devMode is enabled. true if devMode was enabled, false otherwise. link public static void link(Map context, Class clazz, String name)(Code) peek public Object peek()(Code) Get the object on the top of the stack without changing the stack. See Also:   CompoundRoot.peek pop public Object pop()(Code) Get the object on the top of the stack and remove it from the stack. the object on the top of the stack See Also:   CompoundRoot.pop push public void push(Object o)(Code) Put this object onto the top of the stack Parameters:   o - the object to be pushed onto the stack See Also:   CompoundRoot.push(Object) reset public static void reset()(Code) setDefaultType public void setDefaultType(Class defaultType)(Code) Sets the default type to convert to if no type is provided when getting a value. Parameters:   defaultType - setExprOverrides public void setExprOverrides(Map overrides)(Code) setValue public void setValue(String expr, Object value)(Code) Attempts to set a property on a bean in the stack with the given expression using the default search order. Parameters:   expr - the expression defining the path to the property to be set. Parameters:   value - the value to be set into the neamed property setValue public void setValue(String expr, Object value, boolean throwExceptionOnFailure)(Code) Attempts to set a property on a bean in the stack with the given expression using the default search order. Parameters:   expr - the expression defining the path to the property to be set. Parameters:   value - the value to be set into the neamed property Parameters:   throwExceptionOnFailure - a flag to tell whether an exception should be thrown if there is no property withthe given name. size public int size()(Code) Get the number of objects in the stack s the number of objects in the stack Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)