psdi.app.recontask.engine

Class ReconOperatorCompFilter

java.lang.Object

psdi.app.recontask.engine.ReconOperator

psdi.app.recontask.engine.ReconOperatorCompFilter

public class ReconOperatorCompFilter
extends ReconOperator

Operator representing a filter operation carried out by the SQL database at the back-end. Filter expressions only store successful matches.

Author:

Petko_Popov

Constructor Summary

Constructors

Constructor and Description
ReconOperatorCompFilter(ReconInfo reconInfo, DataSet dataSet, java.lang.String operator, int precedence) Any comparison filter operator

Method Summary

Modifier and Type	Method and Description
java.util.List<ReconValue>	evaluateOperator(java.lang.String objectandAttributeName, java.lang.String value, ComparisonQueryHelper qh)
ReconOperator	getInstance() Factory-like method to allow operator objects that cache initializations to return a new instance instead of this
java.lang.String	getObjectName()
void	setIndexOfAttributeTo(java.lang.String fullyQualifiedName)
void	setObjectName(java.lang.String objectName)
void	setOperator(java.lang.String operator)

Methods inherited from class psdi.app.recontask.engine.ReconOperator

getOperator, getPrecedence, isRightAssociative

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReconOperatorCompFilter

public ReconOperatorCompFilter(ReconInfo reconInfo,
                               DataSet dataSet,
                               java.lang.String operator,
                               int precedence)

Any comparison filter operator

Parameters:

operator -

Method Detail

getInstance

public ReconOperator getInstance()

Description copied from class: ReconOperator

Factory-like method to allow operator objects that cache initializations to return a new instance instead of this

Specified by:

getInstance in class ReconOperator

Returns:

overrides will return a new instance

getObjectName

public java.lang.String getObjectName()

evaluateOperator

public java.util.List<ReconValue> evaluateOperator(java.lang.String objectandAttributeName,
                                                   java.lang.String value,
                                                   ComparisonQueryHelper qh)

Parameters:

attribute - the attribute name to be compared, in form of object.attribute (both lowercase)

value - the value against which the attribute is compared

allStatements - a HashMap keyed on lower case object names, contains ComparisonStatement objects

Returns:

a list of the ReconValue objects that satisfied the condition

setObjectName

public void setObjectName(java.lang.String objectName)

setOperator

public void setOperator(java.lang.String operator)

setIndexOfAttributeTo

public void setIndexOfAttributeTo(java.lang.String fullyQualifiedName)