org.makumba.providers.query.oql
Class ComparisonTree

java.lang.Object
  org.makumba.providers.query.oql.AnalysisTree
      org.makumba.providers.query.oql.ComparisonTree

Direct Known Subclasses:

LikeTree

public class ComparisonTree
extends AnalysisTree

comparison operations have operands of the same type

Field Summary

Fields inherited from class org.makumba.providers.query.oql.AnalysisTree

ADD, AND, ASIM_COMP, CONCAT, EXCEPT, IN, INTERSECT, leaf, left, LIKE, makumbaType, MUL, op, OR, right, SIM_COMP, UNION

Constructor Summary

ComparisonTree(Object left, int op, Object right)

Method Summary

(package private) boolean	checkAssign(AnalysisTree a1, AnalysisTree a2) assume that a2 is a constant and check if it's compatible with a1
Object	guessParameterType(Object otherOperandType)
void	negociateOperandTypes(Object t1, Object t2)

Methods inherited from class org.makumba.providers.query.oql.AnalysisTree

adjustType, checkOperandTypes, checkOperandTypes, computeType, computeTypeFromOperands, getMakumbaType, getTree, guessParameterType, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ComparisonTree

public ComparisonTree(Object left,
                      int op,
                      Object right)

Method Detail

guessParameterType

public Object guessParameterType(Object otherOperandType)

Overrides:

guessParameterType in class AnalysisTree

negociateOperandTypes

public void negociateOperandTypes(Object t1,
                                  Object t2)
                           throws antlr.RecognitionException

Overrides:

negociateOperandTypes in class AnalysisTree

Throws:

antlr.RecognitionException

checkAssign

boolean checkAssign(AnalysisTree a1,
                    AnalysisTree a2)
              throws antlr.RecognitionException

assume that a2 is a constant and check if it's compatible with a1

Throws:

antlr.RecognitionException