public class MapContext extends java.lang.Object implements JexlContext
Each entry in the map is considered a variable name, value pair.
Modifier and Type | Field and Description |
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protected java.util.Map<java.lang.String,java.lang.Object> |
map
The wrapped variable map.
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Constructor and Description |
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MapContext()
Creates a MapContext on an automatically allocated underlying HashMap.
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MapContext(java.util.Map<java.lang.String,java.lang.Object> vars)
Creates a MapContext wrapping an existing user provided map.
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Modifier and Type | Method and Description |
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java.lang.Object |
get(java.lang.String name)
Gets the value of a variable.
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boolean |
has(java.lang.String name)
Checks whether a variable is defined in this context.
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void |
set(java.lang.String name,
java.lang.Object value)
Sets the value of a variable.
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protected final java.util.Map<java.lang.String,java.lang.Object> map
public MapContext()
public MapContext(java.util.Map<java.lang.String,java.lang.Object> vars)
vars
- the variable mappublic boolean has(java.lang.String name)
A variable may be defined with a null value; this method checks whether the value is null or if the variable is undefined.
has
in interface JexlContext
name
- the variable's namepublic java.lang.Object get(java.lang.String name)
get
in interface JexlContext
name
- the variable's namepublic void set(java.lang.String name, java.lang.Object value)
set
in interface JexlContext
name
- the variable's namevalue
- the variable's valueCopyright © 2001-2013 The Apache Software Foundation. All Rights Reserved.