net.esper.client.soda
Class PropertyExistsExpression
java.lang.Object
net.esper.client.soda.ExpressionBase
net.esper.client.soda.PropertyExistsExpression
- All Implemented Interfaces:
- Serializable, Expression
public class PropertyExistsExpression
- extends ExpressionBase
Property-exists checks if a dynamic property exists.
- See Also:
- Serialized Form
Method Summary |
void |
toEQL(StringWriter writer)
Renders the clause in textual representation. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
PropertyExistsExpression
public PropertyExistsExpression()
- Ctor - for use to create an expression tree, without child expression.
PropertyExistsExpression
public PropertyExistsExpression(String propertyName)
- Ctor.
- Parameters:
propertyName
- is the name of the property to check existence
toEQL
public void toEQL(StringWriter writer)
- Renders the clause in textual representation.
- Parameters:
writer
- to output to