org.zkoss.xel.util
Class SimpleXelContext

java.lang.Object
  extended by org.zkoss.xel.util.SimpleXelContext
All Implemented Interfaces:
XelContext

public class SimpleXelContext
extends java.lang.Object
implements XelContext

A simple implementation of XelContext.

Since:
3.0.0
Author:
tomyeh

Constructor Summary
SimpleXelContext()
           
SimpleXelContext(VariableResolver resolver)
           
SimpleXelContext(VariableResolver resolver, FunctionMapper mapper)
           
 
Method Summary
 java.lang.Object getAttribute(java.lang.String name)
          Returns the value of the specified attribute, or null if not available.
 java.util.Map<java.lang.String,java.lang.Object> getAttributes()
          Returns all attributes
 FunctionMapper getFunctionMapper()
          Returns the function mapper, or null if not available.
 VariableResolver getVariableResolver()
          Returns the variable resolver, or null if not available.
 boolean hasAttribute(java.lang.String name)
          Returns if the attribute is available.
 java.lang.Object removeAttribute(java.lang.String name)
          Removes the attribute.
 java.lang.Object setAttribute(java.lang.String name, java.lang.Object value)
          Sets the value of the specified attribute
 void setFunctionMapper(FunctionMapper mapper)
          Sets the function mapper, or null if not available.
 void setVariableResolver(VariableResolver resolver)
          Sets the variable resolver, or null if not available.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SimpleXelContext

public SimpleXelContext(VariableResolver resolver,
                        FunctionMapper mapper)

SimpleXelContext

public SimpleXelContext(VariableResolver resolver)

SimpleXelContext

public SimpleXelContext()
Method Detail

setVariableResolver

public void setVariableResolver(VariableResolver resolver)
Sets the variable resolver, or null if not available.


setFunctionMapper

public void setFunctionMapper(FunctionMapper mapper)
Sets the function mapper, or null if not available.


getVariableResolver

public VariableResolver getVariableResolver()
Description copied from interface: XelContext
Returns the variable resolver, or null if not available.

Specified by:
getVariableResolver in interface XelContext

getFunctionMapper

public FunctionMapper getFunctionMapper()
Description copied from interface: XelContext
Returns the function mapper, or null if not available.

Specified by:
getFunctionMapper in interface XelContext

getAttribute

public java.lang.Object getAttribute(java.lang.String name)
Description copied from interface: XelContext
Returns the value of the specified attribute, or null if not available.

Specified by:
getAttribute in interface XelContext
Parameters:
name - the name of the attribute to retrieve
Returns:
the value

setAttribute

public java.lang.Object setAttribute(java.lang.String name,
                                     java.lang.Object value)
Description copied from interface: XelContext
Sets the value of the specified attribute

Specified by:
setAttribute in interface XelContext
Parameters:
name - the name of the attribute to set
value - the value of the attribute to set
Returns:
the previous value

hasAttribute

public boolean hasAttribute(java.lang.String name)
Description copied from interface: XelContext
Returns if the attribute is available.

Notice that null is a valid value, so you can tell if an attribute is associated by examining the return value of XelContext.getAttribute(java.lang.String).

Specified by:
hasAttribute in interface XelContext
Parameters:
name - the name of the attribute to test

removeAttribute

public java.lang.Object removeAttribute(java.lang.String name)
Description copied from interface: XelContext
Removes the attribute.

Specified by:
removeAttribute in interface XelContext
Parameters:
name - the name of the attribute to remove.
Returns:
the previous value associated with the attribute, if any,

getAttributes

public java.util.Map<java.lang.String,java.lang.Object> getAttributes()
Description copied from interface: XelContext
Returns all attributes

Specified by:
getAttributes in interface XelContext


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