Package org.apache.calcite.linq4j

Class BaseQueryable<TSource>

java.lang.Object

org.apache.calcite.linq4j.DefaultEnumerable<T>

org.apache.calcite.linq4j.DefaultQueryable<T>

org.apache.calcite.linq4j.AbstractQueryable<TSource>

org.apache.calcite.linq4j.BaseQueryable<TSource>

Type Parameters:

TSource - Element type

All Implemented Interfaces:

Iterable<TSource>, Enumerable<TSource>, ExtendedEnumerable<TSource>, ExtendedOrderedEnumerable<TSource>, ExtendedOrderedQueryable<TSource>, ExtendedQueryable<TSource>, OrderedEnumerable<TSource>, OrderedQueryable<TSource>, Queryable<TSource>, RawEnumerable<TSource>, RawQueryable<TSource>

Direct Known Subclasses:

QueryProviderImpl.QueryableImpl

public abstract class BaseQueryable<TSource>
extends AbstractQueryable<TSource>

Skeleton implementation of Queryable.

The default implementation of enumerator() calls the provider's QueryProvider.executeQuery(Queryable) method, but the derived class can override.

Field Summary

Fields

Modifier and Type	Field	Description
protected Type	elementType
protected Expression	expression
protected QueryProvider	provider

Constructor Summary

Constructors

Constructor	Description
BaseQueryable(QueryProvider provider, Type elementType, Expression expression)

Method Summary

Modifier and Type	Method	Description
Enumerator<TSource>	enumerator()	Returns an enumerator that iterates through a collection.
Type	getElementType()	Gets the type of the element(s) that are returned when the expression tree associated with this Queryable is executed.
Expression	getExpression()	Gets the expression tree that is associated with this Queryable.
QueryProvider	getProvider()	Gets the query provider that is associated with this data source.
Iterator<TSource>	iterator()

Methods inherited from class org.apache.calcite.linq4j.DefaultEnumerable

aggregate, aggregate, aggregate, all, any, any, asOrderedQueryable, average, average, average, average, average, average, average, average, average, average, contains, contains, correlateJoin, count, count, createOrderedEnumerable, defaultIfEmpty, elementAt, elementAtOrDefault, first, first, firstOrDefault, firstOrDefault, foreach, getThisOrdered, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupJoin, groupJoin, into, join, join, join, last, last, lastOrDefault, lastOrDefault, longCount, longCount, max, max, max, max, max, max, max, max, max, max, max, max, min, min, min, min, min, min, min, min, min, min, min, min, orderBy, orderBy, orderByDescending, orderByDescending, removeAll, select, select, selectMany, selectMany, selectMany, selectMany, sequenceEqual, sequenceEqual, single, single, singleOrDefault, singleOrDefault, skipWhile, skipWhile, sum, sum, sum, sum, sum, sum, sum, sum, sum, sum, takeWhile, takeWhile, thenBy, thenBy, thenByDescending, thenByDescending, toList, toLookup, toLookup, toLookup, toLookup, toMap, toMap, toMap, toMap, where, where, zip

Methods inherited from class org.apache.calcite.linq4j.DefaultQueryable

aggregate, aggregate, aggregate, all, any, asEnumerable, asQueryable, averageBigDecimal, averageDouble, averageFloat, averageInteger, averageLong, averageNullableBigDecimal, averageNullableDouble, averageNullableFloat, averageNullableInteger, averageNullableLong, cast, concat, count, defaultIfEmpty, distinct, distinct, except, except, first, firstOrDefault, getThis, getThisOrderedQueryable, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupByK, groupByK, groupJoin, groupJoin, intersect, intersect, join, join, last, lastOrDefault, longCount, max, min, ofType, orderBy, orderBy, orderByDescending, orderByDescending, reverse, select, selectMany, selectMany, selectManyN, selectManyN, selectN, single, singleOrDefault, skip, skipWhile, skipWhileN, sumBigDecimal, sumDouble, sumFloat, sumInteger, sumLong, sumNullableBigDecimal, sumNullableDouble, sumNullableFloat, sumNullableInteger, sumNullableLong, take, takeWhile, takeWhileN, thenBy, thenBy, thenByDescending, thenByDescending, union, union, where, whereN, zip

Methods inherited from interface org.apache.calcite.linq4j.Enumerable

asQueryable

Methods inherited from interface org.apache.calcite.linq4j.ExtendedEnumerable

aggregate, aggregate, aggregate, all, any, any, asEnumerable, average, average, average, average, average, average, average, average, average, average, cast, concat, contains, contains, correlateJoin, count, count, defaultIfEmpty, defaultIfEmpty, distinct, distinct, elementAt, elementAtOrDefault, except, except, first, first, firstOrDefault, firstOrDefault, foreach, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupJoin, groupJoin, intersect, intersect, into, join, join, join, last, last, lastOrDefault, lastOrDefault, longCount, longCount, max, max, max, max, max, max, max, max, max, max, max, max, min, min, min, min, min, min, min, min, min, min, min, min, ofType, orderBy, orderBy, orderByDescending, orderByDescending, removeAll, reverse, select, select, selectMany, selectMany, selectMany, selectMany, sequenceEqual, sequenceEqual, single, single, singleOrDefault, singleOrDefault, skip, skipWhile, skipWhile, sum, sum, sum, sum, sum, sum, sum, sum, sum, sum, take, takeWhile, takeWhile, toList, toLookup, toLookup, toLookup, toLookup, toMap, toMap, toMap, toMap, union, union, where, where, zip

Methods inherited from interface org.apache.calcite.linq4j.ExtendedQueryable

aggregate, aggregate, aggregate, all, any, averageBigDecimal, averageDouble, averageFloat, averageInteger, averageLong, averageNullableBigDecimal, averageNullableDouble, averageNullableFloat, averageNullableInteger, averageNullableLong, cast, concat, count, defaultIfEmpty, distinct, distinct, except, except, first, firstOrDefault, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupByK, groupByK, groupJoin, groupJoin, intersect, intersect, join, join, last, lastOrDefault, longCount, max, min, ofType, orderBy, orderBy, orderByDescending, orderByDescending, reverse, select, selectMany, selectMany, selectManyN, selectManyN, selectN, single, singleOrDefault, singleOrDefault, skip, skipWhile, skipWhileN, sumBigDecimal, sumDouble, sumFloat, sumInteger, sumLong, sumNullableBigDecimal, sumNullableDouble, sumNullableFloat, sumNullableInteger, sumNullableLong, take, takeWhile, takeWhileN, union, union, where, whereN, zip

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from class java.lang.Object

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

Field Detail

provider

protected final QueryProvider provider

elementType

protected final Type elementType

expression

protected final Expression expression

Constructor Detail

BaseQueryable

public BaseQueryable(QueryProvider provider,
                     Type elementType,
                     Expression expression)

Method Detail

getProvider

public QueryProvider getProvider()

Description copied from interface: RawQueryable

Gets the query provider that is associated with this data source.

getElementType

public Type getElementType()

Description copied from interface: RawQueryable

Gets the type of the element(s) that are returned when the expression tree associated with this Queryable is executed.

getExpression

public Expression getExpression()

Description copied from interface: RawQueryable

Gets the expression tree that is associated with this Queryable.

iterator

public Iterator<TSource> iterator()

enumerator

public Enumerator<TSource> enumerator()

Description copied from interface: RawEnumerable

Returns an enumerator that iterates through a collection.