TemplateEngine.ConstantExpression

java.lang.Object
- org.apache.commons.jexl3.internal.TemplateEngine.TemplateExpression
- - org.apache.commons.jexl3.internal.TemplateEngine.ConstantExpression

All Implemented Interfaces:

JxltEngine.Expression

Enclosing class:

TemplateEngine
```
final class TemplateEngine.ConstantExpression
extends TemplateEngine.TemplateExpression
```
A constant unified expression.

Field Summary

Fields
Modifier and Type Field Description

private java.lang.Object value
The constant held by this unified expression.
- Fields inherited from class org.apache.commons.jexl3.internal.TemplateEngine.TemplateExpression
  source

Constructor Summary

Constructors
Constructor Description

ConstantExpression(java.lang.Object val, TemplateEngine.TemplateExpression source)
Creates a constant unified expression.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.StringBuilder`	`asString(java.lang.StringBuilder strb)`	Adds this expression's string representation to a StringBuilder.
`protected java.lang.Object`	`evaluate(Interpreter interpreter)`	Interprets a sub-expression.
`(package private) TemplateEngine.ExpressionType`	`getType()`	Gets this TemplateExpression type.

Methods inherited from class org.apache.commons.jexl3.internal.TemplateEngine.TemplateExpression
asString, evaluate, evaluate, getInfo, getSource, getVariables, getVariables, isDeferred, isImmediate, options, prepare, prepare, prepare, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - value
```
private final java.lang.Object value
```
    The constant held by this unified expression.
- Constructor Detail
  - ConstantExpression
```
ConstantExpression(java.lang.Object val,
                   TemplateEngine.TemplateExpression source)
```
    Creates a constant unified expression.
    
    Parameters:
    
    val - the constant value
    
    source - the source TemplateExpression if any
- Method Detail
  - asString
```
public java.lang.StringBuilder asString(java.lang.StringBuilder strb)
```
    Description copied from interface: JxltEngine.Expression
    
    Adds this expression's string representation to a StringBuilder.
    
    Parameters:
    
    strb - the builder to fill
    
    Returns:
    
    the builder argument
  - evaluate
```
protected java.lang.Object evaluate(Interpreter interpreter)
```
    Description copied from class: TemplateEngine.TemplateExpression
    
    Interprets a sub-expression.
    
    Specified by:
    
    evaluate in class TemplateEngine.TemplateExpression
    
    Parameters:
    
    interpreter - a JEXL interpreter
    
    Returns:
    
    the result of interpretation
  - getType
```
TemplateEngine.ExpressionType getType()
```
    Description copied from class: TemplateEngine.TemplateExpression
    
    Gets this TemplateExpression type.
    
    Specified by:
    
    getType in class TemplateEngine.TemplateExpression
    
    Returns:
    
    its type