ContextLookup

java.lang.Object
- org.pentaho.reporting.libraries.formula.lvalues.AbstractLValue
- - org.pentaho.reporting.libraries.formula.lvalues.ContextLookup

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, LValue
```
public class ContextLookup
extends AbstractLValue
```
A reference that queries the datarow.

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

ContextLookup(java.lang.String name)

ContextLookup(java.lang.String name, ParsePosition parsePosition)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`TypeValuePair`	`evaluate()`
`java.lang.String`	`getName()`
`Type`	`getValueType()`	Querying the value type is only valid after the value has been evaluated.
`boolean`	`isConstant()`	Checks whether the LValue is constant.
`java.lang.String`	`toString()`

Methods inherited from class org.pentaho.reporting.libraries.formula.lvalues.AbstractLValue
clone, getChildValues, getContext, getParsePosition, initialize, setParsePosition

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

- Constructor Detail
  - ContextLookup
```
public ContextLookup(java.lang.String name)
```
  - ContextLookup
```
public ContextLookup(java.lang.String name,
                     ParsePosition parsePosition)
```
- Method Detail
  - evaluate
```
public TypeValuePair evaluate()
                       throws EvaluationException
```
    Throws:
    
    EvaluationException
  - getValueType
```
public Type getValueType()
```
    Description copied from class: AbstractLValue
    
    Querying the value type is only valid *after* the value has been evaluated.
    
    Specified by:
    
    getValueType in interface LValue
    
    Overrides:
    
    getValueType in class AbstractLValue
    
    Returns:
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - isConstant
```
public boolean isConstant()
```
    Checks whether the LValue is constant. Constant lvalues always return the same value.
    
    Returns:
  - getName
```
public java.lang.String getName()
```