com.facebook.presto.spi.relation

Interface DomainTranslator

public interface DomainTranslator

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	DomainTranslator.ColumnExtractor<T>
static class	DomainTranslator.ExtractionResult<T>

Field Summary

Fields

Modifier and Type	Field and Description
static DomainTranslator.ColumnExtractor<VariableReferenceExpression>	BASIC_COLUMN_EXTRACTOR

Method Summary

Modifier and Type	Method and Description
<T> DomainTranslator.ExtractionResult<T>	fromPredicate(ConnectorSession session, RowExpression predicate, DomainTranslator.ColumnExtractor<T> columnExtractor) Convert a RowExpression predicate into an ExtractionResult consisting of: 1) A successfully extracted TupleDomain 2) An RowExpression fragment which represents the part of the original RowExpression that will need to be re-evaluated after filtering with the TupleDomain.
<T extends RowExpression> RowExpression	toPredicate(TupleDomain<T> tupleDomain)

Field Detail

BASIC_COLUMN_EXTRACTOR

static final DomainTranslator.ColumnExtractor<VariableReferenceExpression> BASIC_COLUMN_EXTRACTOR

Method Detail

toPredicate

<T extends RowExpression> RowExpression toPredicate(TupleDomain<T> tupleDomain)

fromPredicate

<T> DomainTranslator.ExtractionResult<T> fromPredicate(ConnectorSession session,
                                                       RowExpression predicate,
                                                       DomainTranslator.ColumnExtractor<T> columnExtractor)

Convert a RowExpression predicate into an ExtractionResult consisting of: 1) A successfully extracted TupleDomain 2) An RowExpression fragment which represents the part of the original RowExpression that will need to be re-evaluated after filtering with the TupleDomain.