io.prestosql.sql

Class ExpressionUtils

java.lang.Object

io.prestosql.sql.ExpressionUtils

public final class ExpressionUtils
extends Object

Method Summary

Modifier and Type	Method and Description
static Expression	and(Collection<Expression> expressions)
static Expression	and(Expression... expressions)
static Expression	binaryExpression(LogicalBinaryExpression.Operator operator, Collection<Expression> expressions)
static Expression	combineConjuncts(Collection<Expression> expressions)
static Expression	combineConjuncts(Expression... expressions)
static Expression	combineDisjuncts(Collection<Expression> expressions)
static Expression	combineDisjuncts(Expression... expressions)
static Expression	combineDisjunctsWithDefault(Collection<Expression> expressions, Expression emptyDefault)
static Expression	combinePredicates(LogicalBinaryExpression.Operator operator, Collection<Expression> expressions)
static Expression	combinePredicates(LogicalBinaryExpression.Operator operator, Expression... expressions)
static Function<Expression,Expression>	expressionOrNullSymbols(Predicate<Symbol>... nullSymbolScopes)
static List<Expression>	extractConjuncts(Expression expression)
static List<Expression>	extractDisjuncts(Expression expression)
static List<Expression>	extractPredicates(LogicalBinaryExpression.Operator operator, Expression expression)
static List<Expression>	extractPredicates(LogicalBinaryExpression expression)
static Expression	filterConjuncts(Expression expression, Predicate<Expression> predicate)
static Expression	filterDeterministicConjuncts(Expression expression)
static Expression	filterNonDeterministicConjuncts(Expression expression)
static Expression	normalize(Expression expression)
static Expression	or(Collection<Expression> expressions)
static Expression	or(Expression... expressions)
static boolean	referencesAny(Expression expression, Collection<Symbol> variables)
static Expression	rewriteIdentifiersToSymbolReferences(Expression expression)

Methods inherited from class java.lang.Object

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

Method Detail

extractConjuncts

public static List<Expression> extractConjuncts(Expression expression)

extractDisjuncts

public static List<Expression> extractDisjuncts(Expression expression)

extractPredicates

public static List<Expression> extractPredicates(LogicalBinaryExpression expression)

extractPredicates

public static List<Expression> extractPredicates(LogicalBinaryExpression.Operator operator,
                                                 Expression expression)

and

public static Expression and(Expression... expressions)

and

public static Expression and(Collection<Expression> expressions)

or

public static Expression or(Expression... expressions)

or

public static Expression or(Collection<Expression> expressions)

binaryExpression

public static Expression binaryExpression(LogicalBinaryExpression.Operator operator,
                                          Collection<Expression> expressions)

combinePredicates

public static Expression combinePredicates(LogicalBinaryExpression.Operator operator,
                                           Expression... expressions)

combinePredicates

public static Expression combinePredicates(LogicalBinaryExpression.Operator operator,
                                           Collection<Expression> expressions)

combineConjuncts

public static Expression combineConjuncts(Expression... expressions)

combineConjuncts

public static Expression combineConjuncts(Collection<Expression> expressions)

combineDisjuncts

public static Expression combineDisjuncts(Expression... expressions)

combineDisjuncts

public static Expression combineDisjuncts(Collection<Expression> expressions)

combineDisjunctsWithDefault

public static Expression combineDisjunctsWithDefault(Collection<Expression> expressions,
                                                     Expression emptyDefault)

filterDeterministicConjuncts

public static Expression filterDeterministicConjuncts(Expression expression)

filterNonDeterministicConjuncts

public static Expression filterNonDeterministicConjuncts(Expression expression)

filterConjuncts

public static Expression filterConjuncts(Expression expression,
                                         Predicate<Expression> predicate)

referencesAny

public static boolean referencesAny(Expression expression,
                                    Collection<Symbol> variables)

expressionOrNullSymbols

public static Function<Expression,Expression> expressionOrNullSymbols(Predicate<Symbol>... nullSymbolScopes)

normalize

public static Expression normalize(Expression expression)

rewriteIdentifiersToSymbolReferences

public static Expression rewriteIdentifiersToSymbolReferences(Expression expression)