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java.lang.Objectorg.apache.commons.jexl3.MapContext
public class MapContext
Wraps a map in a context.
Each entry in the map is considered a variable name, value pair.
Nested Class Summary |
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Nested classes/interfaces inherited from interface org.apache.commons.jexl3.JexlContext |
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JexlContext.AnnotationProcessor, JexlContext.NamespaceFunctor, JexlContext.NamespaceResolver, JexlContext.ThreadLocal |
Constructor Summary | |
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MapContext()
Creates a MapContext on an automatically allocated underlying HashMap. |
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MapContext(Map<String,Object> vars)
Creates a MapContext wrapping an existing user provided map. |
Method Summary | |
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void |
clear()
Clears all variables. |
Object |
get(String name)
Gets the value of a variable. |
boolean |
has(String name)
Checks whether a variable is defined in this context. |
void |
set(String name,
Object value)
Sets the value of a variable. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public MapContext()
public MapContext(Map<String,Object> vars)
vars
- the variable mapMethod Detail |
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public boolean has(String name)
JexlContext
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 name
public Object get(String name)
JexlContext
get
in interface JexlContext
name
- the variable's name
public void set(String name, Object value)
JexlContext
set
in interface JexlContext
name
- the variable's namevalue
- the variable's valuepublic void clear()
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