public static class ExpressionFactory.NullExpression extends java.lang.Object implements Expression
Modifier and Type | Field and Description |
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static ExpressionFactory.NullExpression |
INSTANCE
The unique instance.
|
Constructor and Description |
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NullExpression() |
Modifier and Type | Method and Description |
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java.lang.Object |
evaluate(Environment env)
Evaluate this expression.
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public static final ExpressionFactory.NullExpression INSTANCE
public NullExpression()
public java.lang.Object evaluate(Environment env)
Expression
evaluate
in interface Expression
env
- The environmentList
, String or any
primitive type or wrapper classes of a primitive type.