ContextLookup

java.lang.Object

org.pentaho.reporting.libraries.formula.lvalues.AbstractLValue

org.pentaho.reporting.libraries.formula.lvalues.ContextLookup

All Implemented Interfaces:: Serializable, 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(String name)

ContextLookup(String name, ParsePosition parsePosition)
Method Summary

Modifier and Type

Method

Description

TypeValuePair

evaluate()

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.

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 Details
- ContextLookup
  
  public ContextLookup(String name)
- ContextLookup
  
  public ContextLookup(String name, ParsePosition parsePosition)
Method Details
- 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 String toString()
  
  Overrides:
  
  toString in class Object
- isConstant
  
  public boolean isConstant()
  
  Checks whether the LValue is constant. Constant lvalues always return the same value.
  
  Returns:
- getName
  
  public String getName()