LabelExpression (ArcGIS Runtime SDK for Java 100.15.4)

java.lang.Object
- com.esri.arcgisruntime.mapping.labeling.LabelExpression

Direct Known Subclasses:

ArcadeLabelExpression, SimpleLabelExpression, WebmapLabelExpression
```
public abstract class LabelExpression
extends Object
```
Abstract base class for the different types of expressions that can be used to create label text.
Users can read the expression script using the getExpression() property. To specify an expression script, users create an object of type ArcadeLabelExpression, SimpleLabelExpression or WebmapLabelExpression with the required expression script and assign it to the label expression object.

Since:

100.11.0

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`LabelExpression(com.esri.arcgisruntime.internal.jni.CoreLabelExpression coreLabelExpression)`	Creates a LabelExpression from a CoreLabelExpression instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getExpression()`	Gets the label expression script string.
`void`	`setExpression(String expression)`	Sets the label expression script string.

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

- Constructor Detail
  - LabelExpression
```
protected LabelExpression(com.esri.arcgisruntime.internal.jni.CoreLabelExpression coreLabelExpression)
```
    Creates a LabelExpression from a CoreLabelExpression instance.
    
    Since:
    
    100.11.0
- Method Detail
  - getExpression
```
public String getExpression()
```
    Gets the label expression script string.
    The expression is expected to be a complete, self-contained label expression in the language specified by the label expression subclass object.
    
    Returns:
    
    the label expression script string
    
    Since:
    
    100.11.0
  - setExpression
```
public void setExpression(String expression)
```
    Sets the label expression script string.
    The expression is expected to be a complete, self-contained label expression in the language specified by the label expression subclass object.
    
    Parameters:
    
    expression - the label expression script string
    
    Throws:
    
    IllegalArgumentException - if expression is null
    
    Since:
    
    100.11.0