psdi.app.recontask.engine

Class ReconCompAttributesEqualityExpression

java.lang.Object

psdi.app.recontask.engine.ReconExpression

psdi.app.recontask.engine.ReconCompAttributesEqualityExpression

public class ReconCompAttributesEqualityExpression
extends ReconExpression

Field Summary

Fields inherited from class psdi.app.recontask.engine.ReconExpression

compiled, expressionTag, infixTokens, reconInfo, rootNode, TOKEN_CONSTANT, TOKEN_DATASET1_FIELD, TOKEN_DATASET2_FIELD, TOKEN_HIGHEST_VALUE, TOKEN_INVALID, TOKEN_LEFT_PARENTHESIS, TOKEN_LOWEST_VALUE, TOKEN_OPERATOR, TOKEN_RIGHT_PARENTHESIS, TOKEN_VALUE, validOperators

Constructor Summary

Constructors

Constructor and Description
ReconCompAttributesEqualityExpression(ReconInfo reconInfo)

Method Summary

Modifier and Type	Method and Description
ReconCompResult	evaluateExpression(ComparisonQueryHelper queries) Evaluates the expression, compiling it first if needed.
protected ReconCompResult	evaluateExpressionTree(BinaryTreeNode root, ComparisonQueryHelper queries) Traverse the binary tree using a recursive algorithm
protected void	readClause(MboRemote clause)

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

addExpressionToken, addExpressionToken, compileExpression, convertInfixToExpressionTree, convertTreeToInfixString, findOperator, getAndOrAttributeName, getAttributeSet, getAttributeToUnitMap, getCloseParentheses, getCompiledExpressionAsString, getExpressionTag, getExpressionTag, getOpenParentheses, getSequenceNum, handleLogicalAnd, handleLogicalOperator, handleLogicalOr, popLinkPush, prepareAttributeIndexes, processInfixExpression, processOperatorToken, processRightParenthesisToken, readExpression, readExpression, reset, setExpressionTag, walkTreeReplaceAttributeNamesWithIndexes, walkTreeToGetAttribSet, walkTreeToGetAttribToUnitMap

Methods inherited from class java.lang.Object

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

Constructor Detail

ReconCompAttributesEqualityExpression

public ReconCompAttributesEqualityExpression(ReconInfo reconInfo)

Method Detail

readClause

protected void readClause(MboRemote clause)
                   throws MXException,
                          java.rmi.RemoteException

Specified by:

readClause in class ReconExpression

Throws:

MXException

java.rmi.RemoteException

evaluateExpression

public ReconCompResult evaluateExpression(ComparisonQueryHelper queries)
                                   throws MXException,
                                          java.rmi.RemoteException

Evaluates the expression, compiling it first if needed.

Returns:

true/false

Throws:

MXException

java.rmi.RemoteException

evaluateExpressionTree

protected ReconCompResult evaluateExpressionTree(BinaryTreeNode root,
                                                 ComparisonQueryHelper queries)
                                          throws MXException,
                                                 java.rmi.RemoteException

Traverse the binary tree using a recursive algorithm

The pseudocode is

if (root != null)

if ( [current node contains an operator] )

x = evaluateTree(root.left_child);

y = evaluateTree(root.right_child);

[Perform operation on x and y, specified by the operator and store result in z]

return z;

else

error!;

Returns:

a list of all IDs of all AssetObject instances that graduated successfully from the filter. Don't worry they may originate from different records database

Throws:

MXException

java.rmi.RemoteException