Package org.apache.iotdb.db.mpp.plan.analyze

Class ExpressionUtils

java.lang.Object

org.apache.iotdb.db.mpp.plan.analyze.ExpressionUtils

public class ExpressionUtils
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
ExpressionUtils()

Method Summary

Modifier and Type	Method	Description
static <T> void	cartesianProduct(java.util.List<java.util.List<T>> dimensionValue, java.util.List<java.util.List<T>> resultList, int layer, java.util.List<T> currentList)
static boolean	checkConstantSatisfy(Expression firstExpression, Expression secondExpression)
static Expression	constructQueryFilter(java.util.List<Expression> expressions)
static org.apache.iotdb.tsfile.read.filter.basic.Filter	constructTimeFilter(ExpressionType expressionType, Expression timeExpression, Expression valueExpression)
static org.apache.iotdb.tsfile.utils.Pair<org.apache.iotdb.tsfile.read.filter.basic.Filter,java.lang.Boolean>	getPairFromBetweenTimeFirst(Expression firstExpression, Expression secondExpression, boolean not)
static org.apache.iotdb.tsfile.utils.Pair<org.apache.iotdb.tsfile.read.filter.basic.Filter,java.lang.Boolean>	getPairFromBetweenTimeSecond(BetweenExpression predicate, Expression expression)
static org.apache.iotdb.tsfile.utils.Pair<org.apache.iotdb.tsfile.read.filter.basic.Filter,java.lang.Boolean>	getPairFromBetweenTimeThird(BetweenExpression predicate, Expression expression)
static Expression	reconstructBinaryExpression(ExpressionType expressionType, Expression leftExpression, Expression rightExpression)
static java.util.List<Expression>	reconstructBinaryExpressions(ExpressionType expressionType, java.util.List<Expression> leftExpressions, java.util.List<Expression> rightExpressions)
static Expression	reconstructFunctionExpression(FunctionExpression expression, java.util.List<Expression> childExpressions)
static java.util.List<Expression>	reconstructFunctionExpressions(FunctionExpression expression, java.util.List<java.util.List<Expression>> childExpressionsList)
static Expression	reconstructTernaryExpression(Expression expression, Expression firstExpression, Expression secondExpression, Expression thirdExpression)
static java.util.List<Expression>	reconstructTernaryExpressions(Expression expression, java.util.List<Expression> firstExpressions, java.util.List<Expression> secondExpressions, java.util.List<Expression> thirdExpressions)
static Expression	reconstructTimeSeriesOperand(org.apache.iotdb.commons.path.PartialPath actualPath)
static java.util.List<Expression>	reconstructTimeSeriesOperands(java.util.List<? extends org.apache.iotdb.commons.path.PartialPath> actualPaths)
static Expression	reconstructUnaryExpression(UnaryExpression expression, Expression childExpression)
static java.util.List<Expression>	reconstructUnaryExpressions(UnaryExpression expression, java.util.List<Expression> childExpressions)

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionUtils

public ExpressionUtils()

Method Detail

reconstructTimeSeriesOperands

public static java.util.List<Expression> reconstructTimeSeriesOperands(java.util.List<? extends org.apache.iotdb.commons.path.PartialPath> actualPaths)

reconstructTimeSeriesOperand

public static Expression reconstructTimeSeriesOperand(org.apache.iotdb.commons.path.PartialPath actualPath)

reconstructFunctionExpressions

public static java.util.List<Expression> reconstructFunctionExpressions(FunctionExpression expression,
                                                                        java.util.List<java.util.List<Expression>> childExpressionsList)

reconstructFunctionExpression

public static Expression reconstructFunctionExpression(FunctionExpression expression,
                                                       java.util.List<Expression> childExpressions)

reconstructUnaryExpressions

public static java.util.List<Expression> reconstructUnaryExpressions(UnaryExpression expression,
                                                                     java.util.List<Expression> childExpressions)

reconstructUnaryExpression

public static Expression reconstructUnaryExpression(UnaryExpression expression,
                                                    Expression childExpression)

reconstructBinaryExpressions

public static java.util.List<Expression> reconstructBinaryExpressions(ExpressionType expressionType,
                                                                      java.util.List<Expression> leftExpressions,
                                                                      java.util.List<Expression> rightExpressions)

reconstructBinaryExpression

public static Expression reconstructBinaryExpression(ExpressionType expressionType,
                                                     Expression leftExpression,
                                                     Expression rightExpression)

reconstructTernaryExpressions

public static java.util.List<Expression> reconstructTernaryExpressions(Expression expression,
                                                                       java.util.List<Expression> firstExpressions,
                                                                       java.util.List<Expression> secondExpressions,
                                                                       java.util.List<Expression> thirdExpressions)

reconstructTernaryExpression

public static Expression reconstructTernaryExpression(Expression expression,
                                                      Expression firstExpression,
                                                      Expression secondExpression,
                                                      Expression thirdExpression)

cartesianProduct

public static <T> void cartesianProduct(java.util.List<java.util.List<T>> dimensionValue,
                                        java.util.List<java.util.List<T>> resultList,
                                        int layer,
                                        java.util.List<T> currentList)

constructTimeFilter

public static org.apache.iotdb.tsfile.read.filter.basic.Filter constructTimeFilter(ExpressionType expressionType,
                                                                                   Expression timeExpression,
                                                                                   Expression valueExpression)

getPairFromBetweenTimeFirst

public static org.apache.iotdb.tsfile.utils.Pair<org.apache.iotdb.tsfile.read.filter.basic.Filter,java.lang.Boolean> getPairFromBetweenTimeFirst(Expression firstExpression,
                                                                                                                                                       Expression secondExpression,
                                                                                                                                                       boolean not)

getPairFromBetweenTimeSecond

public static org.apache.iotdb.tsfile.utils.Pair<org.apache.iotdb.tsfile.read.filter.basic.Filter,java.lang.Boolean> getPairFromBetweenTimeSecond(BetweenExpression predicate,
                                                                                                                                                        Expression expression)

getPairFromBetweenTimeThird

public static org.apache.iotdb.tsfile.utils.Pair<org.apache.iotdb.tsfile.read.filter.basic.Filter,java.lang.Boolean> getPairFromBetweenTimeThird(BetweenExpression predicate,
                                                                                                                                                       Expression expression)

checkConstantSatisfy

public static boolean checkConstantSatisfy(Expression firstExpression,
                                           Expression secondExpression)

constructQueryFilter

public static Expression constructQueryFilter(java.util.List<Expression> expressions)