io.prestosql.sql.planner

Class ExpressionInterpreter

java.lang.Object

io.prestosql.sql.planner.ExpressionInterpreter

public class ExpressionInterpreter
extends Object

Method Summary

Modifier and Type	Method and Description
Object	evaluate()
Object	evaluate(SymbolResolver inputs)
static Object	evaluateConstantExpression(Expression expression, Type expectedType, Metadata metadata, Session session, List<Expression> parameters)
static ExpressionInterpreter	expressionInterpreter(Expression expression, Metadata metadata, Session session, Map<NodeRef<Expression>,Type> expressionTypes)
static ExpressionInterpreter	expressionOptimizer(Expression expression, Metadata metadata, Session session, Map<NodeRef<Expression>,Type> expressionTypes)
Type	getType()
Object	optimize(SymbolResolver inputs)

Methods inherited from class java.lang.Object

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

Method Detail

expressionInterpreter

public static ExpressionInterpreter expressionInterpreter(Expression expression,
                                                          Metadata metadata,
                                                          Session session,
                                                          Map<NodeRef<Expression>,Type> expressionTypes)

expressionOptimizer

public static ExpressionInterpreter expressionOptimizer(Expression expression,
                                                        Metadata metadata,
                                                        Session session,
                                                        Map<NodeRef<Expression>,Type> expressionTypes)

evaluateConstantExpression

public static Object evaluateConstantExpression(Expression expression,
                                                Type expectedType,
                                                Metadata metadata,
                                                Session session,
                                                List<Expression> parameters)

getType

public Type getType()

evaluate

public Object evaluate()

evaluate

public Object evaluate(SymbolResolver inputs)

optimize

public Object optimize(SymbolResolver inputs)