FilterExpression (olingo-odata2-api 3.0.0-SP.21 API)

All Superinterfaces:

CommonExpression, Visitable
```
public interface FilterExpression
extends CommonExpression
```
Represents a $filter expression in the expression tree Used to define the root expression node in an $filter expression tree.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  CommonExpression getExpression()
  
  String getExpressionString()
  - Methods inherited from interface org.apache.olingo.odata2.api.uri.expression.CommonExpression
    getEdmType, getKind, getUriLiteral, setEdmType
  - Methods inherited from interface org.apache.olingo.odata2.api.uri.expression.Visitable
    accept

- Method Detail
  - getExpressionString
```
String getExpressionString()
```
    Returns:
    
    Returns the $filter expression string used to build the expression tree
  - getExpression
```
CommonExpression getExpression()
```
    Returns:
    
    Returns the expression node representing the first operator,method,literal or property of the expression tree