| /* |
| // Licensed to Julian Hyde under one or more contributor license |
| // agreements. See the NOTICE file distributed with this work for |
| // additional information regarding copyright ownership. |
| // |
| // Julian Hyde licenses this file to you under the Apache License, |
| // Version 2.0 (the "License"); you may not use this file except in |
| // compliance with the License. You may obtain a copy of the License at: |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| */ |
| package net.hydromatic.linq4j; |
| |
| import net.hydromatic.linq4j.expressions.FunctionExpression; |
| import net.hydromatic.linq4j.function.*; |
| |
| import java.math.BigDecimal; |
| import java.util.Comparator; |
| |
| /** |
| * Extension methods in Queryable. |
| */ |
| interface ExtendedQueryable<TSource> extends ExtendedEnumerable<TSource> { |
| |
| /** Applies an accumulator function over a |
| * sequence. |
| */ |
| TSource aggregate( |
| FunctionExpression<Function2<TSource, TSource, TSource>> selector); |
| |
| /** Applies an accumulator function over a |
| * sequence. The specified seed value is used as the initial |
| * accumulator value. */ |
| <TAccumulate> TSource aggregate( |
| TAccumulate seed, |
| FunctionExpression<Function2<TAccumulate, TSource, TAccumulate>> |
| selector); |
| |
| /** Applies an accumulator function over a |
| * sequence. The specified seed value is used as the initial |
| * accumulator value, and the specified function is used to select |
| * the result value. */ |
| <TAccumulate, TResult> TResult aggregate( |
| TAccumulate seed, |
| FunctionExpression<Function2<TAccumulate, TSource, TAccumulate>> func, |
| FunctionExpression<Function1<TAccumulate, TResult>> selector); |
| |
| /** Determines whether all the elements of a sequence |
| * satisfy a condition. */ |
| boolean all(FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Determines whether a sequence contains any |
| * elements. */ |
| boolean any(); |
| |
| /** Determines whether any element of a sequence |
| * satisfies a condition. */ |
| boolean any(FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Computes the average of a sequence of Decimal |
| * values that is obtained by invoking a projection function on |
| * each element of the input sequence. */ |
| BigDecimal averageBigDecimal( |
| FunctionExpression<BigDecimalFunction1<TSource>> selector); |
| |
| /** Computes the average of a sequence of nullable |
| * Decimal values that is obtained by invoking a projection |
| * function on each element of the input sequence. */ |
| BigDecimal averageNullableBigDecimal( |
| FunctionExpression<NullableBigDecimalFunction1<TSource>> selector); |
| |
| /** Computes the average of a sequence of Double |
| * values that is obtained by invoking a projection function on |
| * each element of the input sequence. */ |
| double averageDouble(FunctionExpression<DoubleFunction1<TSource>> selector); |
| |
| /** Computes the average of a sequence of nullable |
| * Double values that is obtained by invoking a projection |
| * function on each element of the input sequence. */ |
| Double averageNullableDouble( |
| FunctionExpression<NullableDoubleFunction1<TSource>> selector); |
| |
| /** Computes the average of a sequence of int values |
| * that is obtained by invoking a projection function on each |
| * element of the input sequence. */ |
| int averageInteger(FunctionExpression<IntegerFunction1<TSource>> selector); |
| |
| /** Computes the average of a sequence of nullable |
| * int values that is obtained by invoking a projection function |
| * on each element of the input sequence. */ |
| Integer averageNullableInteger( |
| FunctionExpression<NullableIntegerFunction1<TSource>> selector); |
| |
| /** Computes the average of a sequence of Float |
| * values that is obtained by invoking a projection function on |
| * each element of the input sequence. */ |
| float averageFloat(FunctionExpression<FloatFunction1<TSource>> selector); |
| |
| /** Computes the average of a sequence of nullable |
| * Float values that is obtained by invoking a projection |
| * function on each element of the input sequence. */ |
| Float averageNullableFloat( |
| FunctionExpression<NullableFloatFunction1<TSource>> selector); |
| |
| /** Computes the average of a sequence of long values |
| * that is obtained by invoking a projection function on each |
| * element of the input sequence. */ |
| long averageLong(FunctionExpression<LongFunction1<TSource>> selector); |
| |
| /** Computes the average of a sequence of nullable |
| * long values that is obtained by invoking a projection function |
| * on each element of the input sequence. */ |
| Long averageNullableLong( |
| FunctionExpression<NullableLongFunction1<TSource>> selector); |
| |
| /** Concatenates two sequences. */ |
| Queryable<TSource> concat(Enumerable<TSource> source2); |
| |
| /** Determines whether a sequence contains a specified |
| * element by using the default equality comparer. */ |
| boolean contains(TSource element); |
| |
| /** Determines whether a sequence contains a specified |
| * element by using a specified EqualityComparer<TSource>. */ |
| boolean contains(TSource element, EqualityComparer comparer); |
| |
| /** Returns the number of elements in a |
| * sequence. */ |
| int count(); |
| |
| /** Returns the number of elements in the specified |
| * sequence that satisfies a condition. */ |
| int count(FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Returns the elements of the specified sequence or |
| * the type parameter's default value in a singleton collection if |
| * the sequence is empty. */ |
| Queryable<TSource> defaultIfEmpty(); |
| |
| /** Returns the elements of the specified sequence or |
| * the specified value in a singleton collection if the sequence |
| * is empty. */ |
| TSource defaultIfEmpty(TSource value); |
| |
| /** Returns distinct elements from a sequence by using |
| * the default equality comparer to compare values. */ |
| Queryable<TSource> distinct(); |
| |
| /** Returns distinct elements from a sequence by using |
| * a specified EqualityComparer<TSource> to compare values. */ |
| Queryable<TSource> distinct(EqualityComparer comparer); |
| |
| /** Returns the element at a specified index in a |
| * sequence. */ |
| TSource elementAt(int index); |
| |
| /** Returns the element at a specified index in a |
| * sequence or a default value if the index is out of |
| * range. */ |
| TSource elementAtOrDefault(int index); |
| |
| /** Produces the set difference of two sequences by |
| * using the default equality comparer to compare values. (Defined |
| * by Queryable.) */ |
| Queryable<TSource> except(Enumerable<TSource> enumerable); |
| |
| /** Produces the set difference of two sequences by |
| * using the specified EqualityComparer<TSource> to compare |
| * values. */ |
| Queryable<TSource> except( |
| Enumerable<TSource> enumerable, EqualityComparer comparer); |
| |
| /** Returns the first element of a sequence. (Defined |
| * by Queryable.) */ |
| TSource first(); |
| |
| /** Returns the first element of a sequence that |
| * satisfies a specified condition. */ |
| TSource first(FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Returns the first element of a sequence, or a |
| * default value if the sequence contains no elements. */ |
| TSource firstOrDefault(); |
| |
| /** Returns the first element of a sequence that |
| * satisfies a specified condition or a default value if no such |
| * element is found. */ |
| TSource firstOrDefault(FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Groups the elements of a sequence according to a |
| * specified key selector function. */ |
| <TKey> Queryable<Grouping<TKey, TSource>> groupBy( |
| FunctionExpression<Function1<TSource, TKey>> keySelector); |
| |
| /** Groups the elements of a sequence according to a |
| * specified key selector function and compares the keys by using |
| * a specified comparer. */ |
| <TKey> Queryable<Grouping<TKey, TSource>> groupBy( |
| FunctionExpression<Function1<TSource, TKey>> keySelector, |
| EqualityComparer comparer); |
| |
| /** Groups the elements of a sequence according to a |
| * specified key selector function and projects the elements for |
| * each group by using a specified function. */ |
| <TKey, TElement> Queryable<Grouping<TKey, TElement>> groupBy( |
| FunctionExpression<Function1<TSource, TKey>> keySelector, |
| FunctionExpression<Function1<TSource, TElement>> elementSelector); |
| |
| /** Groups the elements of a sequence according to a |
| * specified key selector function and creates a result value from |
| * each group and its key. |
| * |
| * <p>NOTE: Renamed from {@code groupBy} to distinguish from |
| * {@link #groupBy(net.hydromatic.linq4j.expressions.FunctionExpression, net.hydromatic.linq4j.expressions.FunctionExpression)}, |
| * which has the same erasure.</p> |
| */ |
| <TKey, TResult> Queryable<Grouping<TKey, TResult>> groupByK( |
| FunctionExpression<Function1<TSource, TKey>> keySelector, |
| FunctionExpression<Function2<TKey, Enumerable<TSource>, TResult>> |
| elementSelector); |
| |
| /** Groups the elements of a sequence and projects the |
| * elements for each group by using a specified function. Key |
| * values are compared by using a specified comparer. |
| */ |
| <TKey, TElement> Queryable<Grouping<TKey, TElement>> groupBy( |
| FunctionExpression<Function1<TSource, TKey>> keySelector, |
| FunctionExpression<Function1<TSource, TElement>> elementSelector, |
| EqualityComparer comparer); |
| |
| /** Groups the elements of a sequence according to a |
| * specified key selector function and creates a result value from |
| * each group and its key. Keys are compared by using a specified |
| * comparer. |
| */ |
| <TKey, TResult> Queryable<TResult> groupByK( |
| FunctionExpression<Function1<TSource, TKey>> keySelector, |
| FunctionExpression<Function2<TKey, Enumerable<TSource>, TResult>> |
| elementSelector, |
| EqualityComparer comparer); |
| |
| /** Groups the elements of a sequence according to a |
| * specified key selector function and creates a result value from |
| * each group and its key. The elements of each group are |
| * projected by using a specified function. */ |
| <TKey, TElement, TResult> Queryable<TResult> groupBy( |
| FunctionExpression<Function1<TSource, TKey>> keySelector, |
| FunctionExpression<Function1<TSource, TElement>> elementSelector, |
| FunctionExpression<Function2<TKey, Enumerable<TElement>, TResult>> |
| resultSelector); |
| |
| /** Groups the elements of a sequence according to a |
| * specified key selector function and creates a result value from |
| * each group and its key. Keys are compared by using a specified |
| * comparer and the elements of each group are projected by using |
| * a specified function. */ |
| <TKey, TElement, TResult> Queryable<TResult> groupBy( |
| FunctionExpression<Function1<TSource, TKey>> keySelector, |
| FunctionExpression<Function1<TSource, TElement>> elementSelector, |
| FunctionExpression<Function2<TKey, Enumerable<TElement>, TResult>> |
| resultSelector, |
| EqualityComparer<TKey> comparer); |
| |
| /** Correlates the elements of two sequences based on |
| * key equality and groups the results. The default equality |
| * comparer is used to compare keys. */ |
| <TInner, TKey, TResult> Queryable<TResult> groupJoin( |
| Enumerable<TInner> inner, |
| FunctionExpression<Function1<TSource, TKey>> outerKeySelector, |
| FunctionExpression<Function1<TInner, TKey>> innerKeySelector, |
| FunctionExpression<Function2<TSource, Enumerable<TInner>, TResult>> |
| resultSelector); |
| |
| /** Correlates the elements of two sequences based on |
| * key equality and groups the results. A specified |
| * EqualityComparer<TSource> is used to compare keys. */ |
| <TInner, TKey, TResult> Enumerable<TResult> groupJoin( |
| Enumerable<TInner> inner, |
| FunctionExpression<Function1<TSource, TKey>> outerKeySelector, |
| FunctionExpression<Function1<TInner, TKey>> innerKeySelector, |
| FunctionExpression<Function2<TSource, Enumerable<TInner>, TResult>> |
| resultSelector, |
| EqualityComparer<TKey> comparer); |
| |
| /** Produces the set intersection of two sequences by |
| * using the default equality comparer to compare values. (Defined |
| * by Queryable.) */ |
| Queryable<TSource> intersect(Enumerable<TSource> enumerable); |
| |
| /** Produces the set intersection of two sequences by |
| * using the specified EqualityComparer<TSource> to compare |
| * values. */ |
| Queryable<TSource> intersect( |
| Enumerable<TSource> enumerable, |
| EqualityComparer<TSource> comparer); |
| |
| /** Correlates the elements of two sequences based on |
| * matching keys. The default equality comparer is used to compare |
| * keys. */ |
| <TInner, TKey, TResult> Queryable<TResult> join( |
| Enumerable<TInner> inner, |
| FunctionExpression<Function1<TSource, TKey>> outerKeySelector, |
| FunctionExpression<Function1<TInner, TKey>> innerKeySelector, |
| FunctionExpression<Function2<TSource, TInner, TResult>> resultSelector); |
| |
| /** Correlates the elements of two sequences based on |
| * matching keys. A specified EqualityComparer<TSource> is used to |
| * compare keys. */ |
| <TInner, TKey, TResult> Queryable<TResult> join( |
| Enumerable<TInner> inner, |
| FunctionExpression<Function1<TSource, TKey>> outerKeySelector, |
| FunctionExpression<Function1<TInner, TKey>> innerKeySelector, |
| FunctionExpression<Function2<TSource, TInner, TResult>> resultSelector, |
| EqualityComparer<TKey> comparer); |
| |
| /** Returns the last element in a sequence. (Defined |
| * by Queryable.) */ |
| TSource last(); |
| |
| /** Returns the last element of a sequence that |
| * satisfies a specified condition. */ |
| TSource last(FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Returns the last element in a sequence, or a |
| * default value if the sequence contains no elements. */ |
| TSource lastOrDefault(); |
| |
| /** Returns the last element of a sequence that |
| * satisfies a condition or a default value if no such element is |
| * found. */ |
| TSource lastOrDefault(FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Returns an long that represents the total number |
| * of elements in a sequence. */ |
| long longCount(); |
| |
| /** Returns an long that represents the number of |
| * elements in a sequence that satisfy a condition. */ |
| long longCount(FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Returns the maximum value in a generic |
| * IQueryable<TSource>. */ |
| TSource max(); |
| |
| /** Invokes a projection function on each element of a |
| * generic IQueryable<TSource> and returns the maximum resulting |
| * value. */ |
| <TResult> TResult max( |
| FunctionExpression<Function1<TSource, TResult>> selector); |
| |
| /** Returns the minimum value in a generic |
| * IQueryable<TSource>. */ |
| TSource min(); |
| |
| /** Invokes a projection function on each element of a |
| * generic IQueryable<TSource> and returns the minimum resulting |
| * value. */ |
| <TResult> TResult min( |
| FunctionExpression<Function1<TSource, TResult>> selector); |
| |
| /** Filters the elements of an IQueryable based on a |
| * specified type. |
| * |
| * <p>The OfType method generates a |
| * {@link net.hydromatic.linq4j.expressions.MethodCallExpression} that represents |
| * calling OfType itself as a constructed generic method. It then passes the |
| * MethodCallExpression to the CreateQuery(Expression) method of the |
| * {@link QueryProvider} represented by the Provider property of the source |
| * parameter. |
| * |
| * <p>The query behavior that occurs as a result of executing an expression |
| * tree that represents calling OfType depends on the implementation of the |
| * type of the source parameter. The expected behavior is that it filters |
| * out any elements in source that are not of type TResult. |
| * |
| * <p>NOTE: clazz parameter not present in C# LINQ; necessary because of |
| * Java type erasure.</p> |
| */ |
| <TResult> Queryable<TResult> ofType(Class<TResult> clazz); |
| |
| <T2> Queryable<T2> cast(Class<T2> clazz); |
| |
| /** Sorts the elements of a sequence in ascending |
| * order according to a key. */ |
| <TKey extends Comparable> OrderedQueryable<TSource> orderBy( |
| FunctionExpression<Function1<TSource, TKey>> keySelector); |
| |
| /** Sorts the elements of a sequence in ascending |
| * order by using a specified comparer. */ |
| <TKey> OrderedQueryable<TSource> orderBy( |
| FunctionExpression<Function1<TSource, TKey>> keySelector, |
| Comparator<TKey> comparator); |
| |
| /** Sorts the elements of a sequence in descending |
| * order according to a key. */ |
| <TKey extends Comparable> OrderedQueryable<TSource> orderByDescending( |
| FunctionExpression<Function1<TSource, TKey>> keySelector); |
| |
| /** Sorts the elements of a sequence in descending |
| * order by using a specified comparer. */ |
| <TKey> OrderedQueryable<TSource> orderByDescending( |
| FunctionExpression<Function1<TSource, TKey>> keySelector, |
| Comparator<TKey> comparator); |
| |
| /** Inverts the order of the elements in a |
| * sequence. */ |
| Queryable<TSource> reverse(); |
| |
| |
| /** Projects each element of a sequence into a new |
| * form. */ |
| <TResult> Queryable<TResult> select( |
| FunctionExpression<Function1<TSource, TResult>> selector); |
| |
| /** Projects each element of a sequence into a new |
| * form by incorporating the element's index. |
| * |
| * <p>NOTE: Renamed from {@code select} because had same erasure as |
| * {@link #select(net.hydromatic.linq4j.expressions.FunctionExpression)}.</p> |
| */ |
| <TResult> Queryable<TResult> selectN( |
| FunctionExpression<Function2<TSource, Integer, TResult>> selector); |
| |
| |
| /** Projects each element of a sequence to an |
| * Enumerable<TSource> and combines the resulting sequences into one |
| * sequence. */ |
| <TResult> Queryable<TResult> selectMany( |
| FunctionExpression<Function1<TSource, Enumerable<TResult>>> selector); |
| |
| /** Projects each element of a sequence to an |
| * Enumerable<TSource> and combines the resulting sequences into one |
| * sequence. The index of each source element is used in the |
| * projected form of that element. |
| * |
| * <p>NOTE: Renamed from {@code selectMany} because had same erasure as |
| * {@link #selectMany(net.hydromatic.linq4j.expressions.FunctionExpression)}</p> |
| */ |
| <TResult> Queryable<TResult> selectManyN( |
| FunctionExpression<Function2<TSource, Integer, Enumerable<TResult>>> |
| selector); |
| |
| /** Projects each element of a sequence to an |
| * Enumerable<TSource> that incorporates the index of the source |
| * element that produced it. A result selector function is invoked |
| * on each element of each intermediate sequence, and the |
| * resulting values are combined into a single, one-dimensional |
| * sequence and returned. */ |
| <TCollection, TResult> Queryable<TResult> selectMany( |
| FunctionExpression<Function2<TSource, Integer, Enumerable<TCollection>>> |
| collectionSelector, |
| FunctionExpression<Function2<TSource, TCollection, TResult>> |
| resultSelector); |
| |
| /** Projects each element of a sequence to an |
| * Enumerable<TSource> and invokes a result selector function on each |
| * element therein. The resulting values from each intermediate |
| * sequence are combined into a single, one-dimensional sequence |
| * and returned. |
| * |
| * <p>NOTE: Renamed from {@code selectMany} because had same erasure as |
| * {@link #selectMany(net.hydromatic.linq4j.expressions.FunctionExpression, net.hydromatic.linq4j.expressions.FunctionExpression)}</p> |
| * */ |
| <TCollection, TResult> Queryable<TResult> selectManyN( |
| FunctionExpression<Function1<TSource, Enumerable<TCollection>>> |
| collectionSelector, |
| FunctionExpression<Function2<TSource, TCollection, TResult>> |
| resultSelector); |
| |
| /** Determines whether two sequences are equal by |
| * using the default equality comparer to compare |
| * elements. */ |
| boolean sequenceEqual(Enumerable<TSource> enumerable); |
| |
| /** Determines whether two sequences are equal by |
| * using a specified EqualityComparer<TSource> to compare |
| * elements. */ |
| boolean sequenceEqual( |
| Enumerable<TSource> enumerable, |
| EqualityComparer<TSource> comparer); |
| |
| /** Returns the only element of a sequence, and throws |
| * an exception if there is not exactly one element in the |
| * sequence. */ |
| TSource single(); |
| |
| /** Returns the only element of a sequence that |
| * satisfies a specified condition, and throws an exception if |
| * more than one such element exists. */ |
| TSource single(FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Returns the only element of a sequence, or a |
| * default value if the sequence is empty; this method throws an |
| * exception if there is more than one element in the |
| * sequence. */ |
| TSource singleOrDefault(); |
| |
| /** Returns the only element of a sequence that |
| * satisfies a specified condition or a default value if no such |
| * element exists; this method throws an exception if more than |
| * one element satisfies the condition. */ |
| TSource singleOrDefault(FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Bypasses a specified number of elements in a |
| * sequence and then returns the remaining elements. */ |
| Queryable<TSource> skip(int count); |
| |
| /** Bypasses elements in a sequence as long as a |
| * specified condition is true and then returns the remaining |
| * elements. */ |
| Queryable<TSource> skipWhile( |
| FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Bypasses elements in a sequence as long as a |
| * specified condition is true and then returns the remaining |
| * elements. The element's index is used in the logic of the |
| * predicate function. */ |
| Queryable<TSource> skipWhileN( |
| FunctionExpression<Predicate2<TSource, Integer>> predicate); |
| |
| /** Computes the sum of the sequence of Decimal values |
| * that is obtained by invoking a projection function on each |
| * element of the input sequence. */ |
| BigDecimal sumBigDecimal( |
| FunctionExpression<BigDecimalFunction1<TSource>> selector); |
| |
| /** Computes the sum of the sequence of nullable |
| * Decimal values that is obtained by invoking a projection |
| * function on each element of the input sequence. */ |
| BigDecimal sumNullableBigDecimal( |
| FunctionExpression<NullableBigDecimalFunction1<TSource>> selector); |
| |
| /** Computes the sum of the sequence of Double values |
| * that is obtained by invoking a projection function on each |
| * element of the input sequence. */ |
| double sumDouble(FunctionExpression<DoubleFunction1<TSource>> selector); |
| |
| /** Computes the sum of the sequence of nullable |
| * Double values that is obtained by invoking a projection |
| * function on each element of the input sequence. */ |
| Double sumNullableDouble( |
| FunctionExpression<NullableDoubleFunction1<TSource>> selector); |
| |
| /** Computes the sum of the sequence of int values |
| * that is obtained by invoking a projection function on each |
| * element of the input sequence. */ |
| int sumInteger(FunctionExpression<IntegerFunction1<TSource>> selector); |
| |
| /** Computes the sum of the sequence of nullable int |
| * values that is obtained by invoking a projection function on |
| * each element of the input sequence. */ |
| Integer sumNullableInteger( |
| FunctionExpression<NullableIntegerFunction1<TSource>> selector); |
| |
| /** Computes the sum of the sequence of long values |
| * that is obtained by invoking a projection function on each |
| * element of the input sequence. */ |
| long sumLong(FunctionExpression<LongFunction1<TSource>> selector); |
| |
| /** Computes the sum of the sequence of nullable long |
| * values that is obtained by invoking a projection function on |
| * each element of the input sequence. */ |
| Long sumNullableLong( |
| FunctionExpression<NullableLongFunction1<TSource>> selector); |
| |
| /** Computes the sum of the sequence of Float values |
| * that is obtained by invoking a projection function on each |
| * element of the input sequence. */ |
| float sumFloat(FunctionExpression<FloatFunction1<TSource>> selector); |
| |
| /** Computes the sum of the sequence of nullable |
| * Float values that is obtained by invoking a projection |
| * function on each element of the input sequence. */ |
| Float sumNullableFloat( |
| FunctionExpression<NullableFloatFunction1<TSource>> selector); |
| |
| /** Returns a specified number of contiguous elements |
| * from the start of a sequence. */ |
| Queryable<TSource> take(int count); |
| |
| /** Returns elements from a sequence as long as a |
| * specified condition is true. */ |
| Queryable<TSource> takeWhile( |
| FunctionExpression<Predicate1<TSource>> predicate); |
| |
| /** Returns elements from a sequence as long as a |
| * specified condition is true. The element's index is used in the |
| * logic of the predicate function. */ |
| Queryable<TSource> takeWhileN( |
| FunctionExpression<Predicate2<TSource, Integer>> predicate); |
| |
| /** Produces the set union of two sequences by using |
| * the default equality comparer. */ |
| Queryable<TSource> union(Enumerable<TSource> source1); |
| |
| /** Produces the set union of two sequences by using a |
| * specified EqualityComparer<TSource>. */ |
| Queryable<TSource> union( |
| Enumerable<TSource> source1, |
| EqualityComparer<TSource> comparer); |
| |
| /** Filters a sequence of values based on a |
| * predicate. */ |
| Queryable<TSource> where( |
| FunctionExpression<? extends Predicate1<TSource>> predicate); |
| |
| /** Filters a sequence of values based on a |
| * predicate. Each element's index is used in the logic of the |
| * predicate function. */ |
| Queryable<TSource> whereN( |
| FunctionExpression<? extends Predicate2<TSource, Integer>> predicate); |
| |
| /** Merges two sequences by using the specified |
| * predicate function. */ |
| <T1, TResult> Queryable<TResult> zip( |
| Enumerable<T1> source1, |
| FunctionExpression<Function2<TSource, T1, TResult>> resultSelector); |
| } |
| |
| // End ExtendedQueryable.java |
