Style Intelligence v12.0

inetsoft.uql.path.expr
Class ComparisonExpr

java.lang.Object
  extended by inetsoft.uql.path.ConditionExpression
      extended by inetsoft.uql.path.expr.Expr
          extended by inetsoft.uql.path.expr.ComparisonExpr
All Implemented Interfaces:
Serializable

public class ComparisonExpr
extends Expr

Comparison expression. Supported operators are: <, >, <=, >=, ==, !=.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class inetsoft.uql.path.ConditionExpression
ALL, ANY, SOME
 
Constructor Summary
ComparisonExpr(Expr expr1, String op, Expr expr2)
          Create a comparison expression.
 
Method Summary
 Object execute(XNode tree, VariableTable vars)
          Execute the expression on a data tree.
 Expr getExpression1()
          Get the LHS expression.
 Expr getExpression2()
          Get the RHS expression.
 Expr[] getExpressions()
          Get the expressions used in this expr.
 String getOperator()
          Get the operator.
 String[] getVariables()
          Get all variables used in the condition.
 String toString()
           
 
Methods inherited from class inetsoft.uql.path.expr.Expr
aggregate, append, booleanValue, compare, compare, doubleValue, getScalar, getScalarString, toArray, toString, toStringNot, toVector
 
Methods inherited from class inetsoft.uql.path.ConditionExpression
parse
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

ComparisonExpr

public ComparisonExpr(Expr expr1,
                      String op,
                      Expr expr2)
Create a comparison expression.

Method Detail

getExpression1

public Expr getExpression1()
Get the LHS expression.


getOperator

public String getOperator()
Get the operator.


getExpression2

public Expr getExpression2()
Get the RHS expression.


getVariables

public String[] getVariables()
Get all variables used in the condition.

Overrides:
getVariables in class Expr

execute

public Object execute(XNode tree,
                      VariableTable vars)
               throws Exception
Execute the expression on a data tree.

Specified by:
execute in class ConditionExpression
Parameters:
tree - data tree.
vars - variable table.
Throws:
Exception

getExpressions

public Expr[] getExpressions()
Get the expressions used in this expr. This is used for traversal down the expr tree.

Specified by:
getExpressions in class Expr

toString

public String toString()
Overrides:
toString in class Object

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