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• DefaultEnumerable.java

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com.hazelcast.org.apache.calcite.linq4j.DefaultEnumerable Maven / Gradle / Ivy

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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 com.hazelcast.org.apache.calcite.linq4j;

import com.hazelcast.org.apache.calcite.linq4j.function.BigDecimalFunction1;
import com.hazelcast.org.apache.calcite.linq4j.function.DoubleFunction1;
import com.hazelcast.org.apache.calcite.linq4j.function.EqualityComparer;
import com.hazelcast.org.apache.calcite.linq4j.function.FloatFunction1;
import com.hazelcast.org.apache.calcite.linq4j.function.Function0;
import com.hazelcast.org.apache.calcite.linq4j.function.Function1;
import com.hazelcast.org.apache.calcite.linq4j.function.Function2;
import com.hazelcast.org.apache.calcite.linq4j.function.IntegerFunction1;
import com.hazelcast.org.apache.calcite.linq4j.function.LongFunction1;
import com.hazelcast.org.apache.calcite.linq4j.function.NullableBigDecimalFunction1;
import com.hazelcast.org.apache.calcite.linq4j.function.NullableDoubleFunction1;
import com.hazelcast.org.apache.calcite.linq4j.function.NullableFloatFunction1;
import com.hazelcast.org.apache.calcite.linq4j.function.NullableIntegerFunction1;
import com.hazelcast.org.apache.calcite.linq4j.function.NullableLongFunction1;
import com.hazelcast.org.apache.calcite.linq4j.function.Predicate1;
import com.hazelcast.org.apache.calcite.linq4j.function.Predicate2;

import java.math.BigDecimal;
import java.util.Collection;
import java.util.Comparator;
import java.util.List;
import java.util.Map;

/**
 * Implementation of the {@link com.hazelcast.org.apache.calcite.linq4j.Enumerable} interface
 * that implements the extension methods by calling into the {@link Extensions}
 * class.
 *
 * 
The are two abstract methods:
 * {@link #enumerator()} and {@link #iterator()}.
 * The derived class can implement each separately, or implement one in terms of
 * the other.
 *
 * @param  Element type
 */
public abstract class DefaultEnumerable implements OrderedEnumerable {

  /**
   * Derived classes might wish to override this method to return the "outer"
   * enumerable.
   */
  protected Enumerable getThis() {
    return this;
  }

  /**
   * Derived classes might wish to override this method to return the "outer"
   * ordered-enumerable.
   */
  protected OrderedEnumerable getThisOrdered() {
    return this;
  }

  public  R foreach(Function1 func) {
    R result = null;
    try (Enumerator enumerator = enumerator()) {
      while (enumerator.moveNext()) {
        T t = enumerator.current();
        result = func.apply(t);
      }
      return result;
    }
  }

  public Queryable asQueryable() {
    return Extensions.asQueryable(this);
  }

  // NOTE: Not part of the Queryable interface.
  protected OrderedQueryable asOrderedQueryable() {
    return EnumerableDefaults.asOrderedQueryable(this);
  }

  public T aggregate(Function2 func) {
    return EnumerableDefaults.aggregate(getThis(), func);
  }

  public  TAccumulate aggregate(TAccumulate seed,
      Function2 func) {
    return EnumerableDefaults.aggregate(getThis(), seed, func);
  }

  public  TResult aggregate(TAccumulate seed,
      Function2 func,
      Function1 selector) {
    return EnumerableDefaults.aggregate(getThis(), seed, func, selector);
  }

  public boolean all(Predicate1 predicate) {
    return EnumerableDefaults.all(getThis(), predicate);
  }

  public boolean any() {
    return EnumerableDefaults.any(getThis());
  }

  public boolean any(Predicate1 predicate) {
    return EnumerableDefaults.any(getThis(), predicate);
  }

  public Enumerable asEnumerable() {
    return EnumerableDefaults.asEnumerable(getThis());
  }

  public BigDecimal average(BigDecimalFunction1 selector) {
    return EnumerableDefaults.average(getThis(), selector);
  }

  public BigDecimal average(NullableBigDecimalFunction1 selector) {
    return EnumerableDefaults.average(getThis(), selector);
  }

  public double average(DoubleFunction1 selector) {
    return EnumerableDefaults.average(getThis(), selector);
  }

  public Double average(NullableDoubleFunction1 selector) {
    return EnumerableDefaults.average(getThis(), selector);
  }

  public int average(IntegerFunction1 selector) {
    return EnumerableDefaults.average(getThis(), selector);
  }

  public Integer average(NullableIntegerFunction1 selector) {
    return EnumerableDefaults.average(getThis(), selector);
  }

  public long average(LongFunction1 selector) {
    return EnumerableDefaults.average(getThis(), selector);
  }

  public Long average(NullableLongFunction1 selector) {
    return EnumerableDefaults.average(getThis(), selector);
  }

  public float average(FloatFunction1 selector) {
    return EnumerableDefaults.average(getThis(), selector);
  }

  public Float average(NullableFloatFunction1 selector) {
    return EnumerableDefaults.average(getThis(), selector);
  }

  public  Enumerable cast(Class clazz) {
    return EnumerableDefaults.cast(getThis(), clazz);
  }

  public Enumerable concat(Enumerable enumerable1) {
    return EnumerableDefaults.concat(getThis(), enumerable1);
  }

  public boolean contains(T element) {
    return EnumerableDefaults.contains(getThis(), element);
  }

  public boolean contains(T element, EqualityComparer comparer) {
    return EnumerableDefaults.contains(getThis(), element, comparer);
  }

  public int count() {
    return EnumerableDefaults.count(getThis());
  }

  public int count(Predicate1 predicate) {
    return EnumerableDefaults.count(getThis(), predicate);
  }

  public  OrderedEnumerable createOrderedEnumerable(
      Function1 keySelector, Comparator comparator,
      boolean descending) {
    return EnumerableDefaults.createOrderedEnumerable(getThisOrdered(),
        keySelector, comparator, descending);
  }

  public Enumerable defaultIfEmpty() {
    return EnumerableDefaults.defaultIfEmpty(getThis());
  }

  public Enumerable  defaultIfEmpty(T value) {
    return EnumerableDefaults.defaultIfEmpty(getThis(), value);
  }

  public Enumerable distinct() {
    return EnumerableDefaults.distinct(getThis());
  }

  public Enumerable distinct(EqualityComparer comparer) {
    return EnumerableDefaults.distinct(getThis(), comparer);
  }

  public T elementAt(int index) {
    return EnumerableDefaults.elementAt(getThis(), index);
  }

  public T elementAtOrDefault(int index) {
    return EnumerableDefaults.elementAtOrDefault(getThis(), index);
  }

  public Enumerable except(Enumerable enumerable1) {
    return except(enumerable1, false);
  }

  public Enumerable except(Enumerable enumerable1, boolean all) {
    return EnumerableDefaults.except(getThis(), enumerable1, all);
  }

  public Enumerable except(Enumerable enumerable1,
      EqualityComparer comparer) {
    return except(enumerable1, comparer, false);
  }

  public Enumerable except(Enumerable enumerable1,
      EqualityComparer comparer, boolean all) {
    return EnumerableDefaults.except(getThis(), enumerable1, comparer, all);
  }

  public T first() {
    return EnumerableDefaults.first(getThis());
  }

  public T first(Predicate1 predicate) {
    return EnumerableDefaults.first(getThis(), predicate);
  }

  public T firstOrDefault() {
    return EnumerableDefaults.firstOrDefault(getThis());
  }

  public T firstOrDefault(Predicate1 predicate) {
    return EnumerableDefaults.firstOrDefault(getThis(), predicate);
  }

  public  Enumerable> groupBy(
      Function1 keySelector) {
    return EnumerableDefaults.groupBy(getThis(), keySelector);
  }

  public  Enumerable> groupBy(
      Function1 keySelector, EqualityComparer comparer) {
    return EnumerableDefaults.groupBy(getThis(), keySelector, comparer);
  }

  public  Enumerable> groupBy(
      Function1 keySelector, Function1 elementSelector) {
    return EnumerableDefaults.groupBy(getThis(), keySelector, elementSelector);
  }

  public  Enumerable> groupBy(
      Function1 keySelector, Function1 elementSelector,
      EqualityComparer comparer) {
    return EnumerableDefaults.groupBy(getThis(), keySelector, elementSelector,
        comparer);
  }

  public  Enumerable groupBy(
      Function1 keySelector,
      Function2, TResult> elementSelector,
      EqualityComparer comparer) {
    return EnumerableDefaults.groupBy(getThis(), keySelector, elementSelector,
        comparer);
  }

  public  Enumerable groupBy(
      Function1 keySelector,
      Function2, TResult> resultSelector) {
    return EnumerableDefaults.groupBy(getThis(), keySelector, resultSelector);
  }

  public  Enumerable groupBy(
      Function1 keySelector, Function1 elementSelector,
      Function2, TResult> resultSelector) {
    return EnumerableDefaults.groupBy(getThis(), keySelector, elementSelector,
        resultSelector);
  }

  public  Enumerable groupBy(
      Function1 keySelector, Function1 elementSelector,
      Function2, TResult> resultSelector,
      EqualityComparer comparer) {
    return EnumerableDefaults.groupBy(getThis(), keySelector, elementSelector,
        resultSelector, comparer);
  }

  public  Enumerable groupBy(
      Function1 keySelector,
      Function0 accumulatorInitializer,
      Function2 accumulatorAdder,
      Function2 resultSelector) {
    return EnumerableDefaults.groupBy(getThis(), keySelector,
        accumulatorInitializer, accumulatorAdder, resultSelector);
  }

  public  Enumerable groupBy(
      Function1 keySelector,
      Function0 accumulatorInitializer,
      Function2 accumulatorAdder,
      Function2 resultSelector,
      EqualityComparer comparer) {
    return EnumerableDefaults.groupBy(getThis(), keySelector,
        accumulatorInitializer, accumulatorAdder, resultSelector, comparer);
  }

  public  Enumerable groupJoin(
      Enumerable inner, Function1 outerKeySelector,
      Function1 innerKeySelector,
      Function2, TResult> resultSelector) {
    return EnumerableDefaults.groupJoin(getThis(), inner, outerKeySelector,
        innerKeySelector, resultSelector);
  }

  public  Enumerable groupJoin(
      Enumerable inner, Function1 outerKeySelector,
      Function1 innerKeySelector,
      Function2, TResult> resultSelector,
      EqualityComparer comparer) {
    return EnumerableDefaults.groupJoin(getThis(), inner, outerKeySelector,
        innerKeySelector, resultSelector, comparer);
  }

  public Enumerable intersect(Enumerable enumerable1) {
    return intersect(enumerable1, false);
  }

  public Enumerable intersect(Enumerable enumerable1, boolean all) {
    return EnumerableDefaults.intersect(getThis(), enumerable1, all);
  }

  public Enumerable intersect(Enumerable enumerable1,
      EqualityComparer comparer) {
    return intersect(enumerable1, comparer, false);
  }

  public Enumerable intersect(Enumerable enumerable1,
      EqualityComparer comparer, boolean all) {
    return EnumerableDefaults.intersect(getThis(), enumerable1, comparer, all);
  }

  public > C into(C sink) {
    return EnumerableDefaults.into(getThis(), sink);
  }

  public > C removeAll(C sink) {
    return EnumerableDefaults.remove(getThis(), sink);
  }

  public  Enumerable hashJoin(
      Enumerable inner, Function1 outerKeySelector,
      Function1 innerKeySelector,
      Function2 resultSelector) {
    return EnumerableDefaults.hashJoin(getThis(), inner, outerKeySelector,
        innerKeySelector, resultSelector);
  }

  public  Enumerable hashJoin(
      Enumerable inner, Function1 outerKeySelector,
      Function1 innerKeySelector,
      Function2 resultSelector,
      EqualityComparer comparer) {
    return EnumerableDefaults.hashJoin(getThis(), inner, outerKeySelector,
        innerKeySelector, resultSelector, comparer);
  }

  public  Enumerable hashJoin(
      Enumerable inner, Function1 outerKeySelector,
      Function1 innerKeySelector,
      Function2 resultSelector,
      EqualityComparer comparer,
      boolean generateNullsOnLeft, boolean generateNullsOnRight) {
    return EnumerableDefaults.hashJoin(getThis(), inner, outerKeySelector,
        innerKeySelector, resultSelector, comparer, generateNullsOnLeft,
        generateNullsOnRight);
  }

  public  Enumerable hashJoin(
      Enumerable inner, Function1 outerKeySelector,
      Function1 innerKeySelector,
      Function2 resultSelector,
      EqualityComparer comparer,
      boolean generateNullsOnLeft, boolean generateNullsOnRight,
      Predicate2 predicate) {
    return EnumerableDefaults.hashJoin(getThis(), inner, outerKeySelector,
        innerKeySelector, resultSelector, comparer, generateNullsOnLeft,
        generateNullsOnRight, predicate);
  }

  public  Enumerable correlateJoin(
      JoinType joinType, Function1> inner,
      Function2 resultSelector) {
    return EnumerableDefaults.correlateJoin(joinType, getThis(), inner,
        resultSelector);
  }

  public T last() {
    return EnumerableDefaults.last(getThis());
  }

  public T last(Predicate1 predicate) {
    return EnumerableDefaults.last(getThis(), predicate);
  }

  public T lastOrDefault() {
    return EnumerableDefaults.lastOrDefault(getThis());
  }

  public T lastOrDefault(Predicate1 predicate) {
    return EnumerableDefaults.lastOrDefault(getThis(), predicate);
  }

  public long longCount() {
    return EnumerableDefaults.longCount(getThis());
  }

  public long longCount(Predicate1 predicate) {
    return EnumerableDefaults.longCount(getThis(), predicate);
  }

  public T max() {
    return (T) EnumerableDefaults.max((Enumerable) getThis());
  }

  public BigDecimal max(BigDecimalFunction1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public BigDecimal max(NullableBigDecimalFunction1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public double max(DoubleFunction1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public Double max(NullableDoubleFunction1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public int max(IntegerFunction1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public Integer max(NullableIntegerFunction1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public long max(LongFunction1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public Long max(NullableLongFunction1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public float max(FloatFunction1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public Float max(NullableFloatFunction1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public > TResult max(
      Function1 selector) {
    return EnumerableDefaults.max(getThis(), selector);
  }

  public T min() {
    return (T) EnumerableDefaults.min((Enumerable) getThis());
  }

  public BigDecimal min(BigDecimalFunction1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public BigDecimal min(NullableBigDecimalFunction1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public double min(DoubleFunction1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public Double min(NullableDoubleFunction1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public int min(IntegerFunction1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public Integer min(NullableIntegerFunction1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public long min(LongFunction1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public Long min(NullableLongFunction1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public float min(FloatFunction1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public Float min(NullableFloatFunction1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public > TResult min(
      Function1 selector) {
    return EnumerableDefaults.min(getThis(), selector);
  }

  public  Enumerable ofType(Class clazz) {
    return EnumerableDefaults.ofType(getThis(), clazz);
  }

  public  Enumerable orderBy(
      Function1 keySelector) {
    return EnumerableDefaults.orderBy(getThis(), keySelector);
  }

  public  Enumerable orderBy(Function1 keySelector,
      Comparator comparator) {
    return EnumerableDefaults.orderBy(getThis(), keySelector, comparator);
  }

  public  Enumerable orderByDescending(
      Function1 keySelector) {
    return EnumerableDefaults.orderByDescending(getThis(), keySelector);
  }

  public  Enumerable orderByDescending(Function1 keySelector,
      Comparator comparator) {
    return EnumerableDefaults.orderByDescending(getThis(), keySelector,
        comparator);
  }

  public Enumerable reverse() {
    return EnumerableDefaults.reverse(getThis());
  }

  public  Enumerable select(Function1 selector) {
    return EnumerableDefaults.select(getThis(), selector);
  }

  public  Enumerable select(
      Function2 selector) {
    return EnumerableDefaults.select(getThis(), selector);
  }

  public  Enumerable selectMany(
      Function1> selector) {
    return EnumerableDefaults.selectMany(getThis(), selector);
  }

  public  Enumerable selectMany(
      Function2> selector) {
    return EnumerableDefaults.selectMany(getThis(), selector);
  }

  public  Enumerable selectMany(
      Function2> collectionSelector,
      Function2 resultSelector) {
    return EnumerableDefaults.selectMany(getThis(), collectionSelector,
        resultSelector);
  }

  public  Enumerable selectMany(
      Function1> collectionSelector,
      Function2 resultSelector) {
    return EnumerableDefaults.selectMany(getThis(), collectionSelector,
        resultSelector);
  }

  public boolean sequenceEqual(Enumerable enumerable1) {
    return EnumerableDefaults.sequenceEqual(getThis(), enumerable1);
  }

  public boolean sequenceEqual(Enumerable enumerable1,
      EqualityComparer comparer) {
    return EnumerableDefaults.sequenceEqual(getThis(), enumerable1, comparer);
  }

  public T single() {
    return EnumerableDefaults.single(getThis());
  }

  public T single(Predicate1 predicate) {
    return EnumerableDefaults.single(getThis(), predicate);
  }

  public T singleOrDefault() {
    return EnumerableDefaults.singleOrDefault(getThis());
  }

  public T singleOrDefault(Predicate1 predicate) {
    return EnumerableDefaults.singleOrDefault(getThis(), predicate);
  }

  public Enumerable skip(int count) {
    return EnumerableDefaults.skip(getThis(), count);
  }

  public Enumerable skipWhile(Predicate1 predicate) {
    return EnumerableDefaults.skipWhile(getThis(), predicate);
  }

  public Enumerable skipWhile(Predicate2 predicate) {
    return EnumerableDefaults.skipWhile(getThis(), predicate);
  }

  public BigDecimal sum(BigDecimalFunction1 selector) {
    return EnumerableDefaults.sum(getThis(), selector);
  }

  public BigDecimal sum(NullableBigDecimalFunction1 selector) {
    return EnumerableDefaults.sum(getThis(), selector);
  }

  public double sum(DoubleFunction1 selector) {
    return EnumerableDefaults.sum(getThis(), selector);
  }

  public Double sum(NullableDoubleFunction1 selector) {
    return EnumerableDefaults.sum(getThis(), selector);
  }

  public int sum(IntegerFunction1 selector) {
    return EnumerableDefaults.sum(getThis(), selector);
  }

  public Integer sum(NullableIntegerFunction1 selector) {
    return EnumerableDefaults.sum(getThis(), selector);
  }

  public long sum(LongFunction1 selector) {
    return EnumerableDefaults.sum(getThis(), selector);
  }

  public Long sum(NullableLongFunction1 selector) {
    return EnumerableDefaults.sum(getThis(), selector);
  }

  public float sum(FloatFunction1 selector) {
    return EnumerableDefaults.sum(getThis(), selector);
  }

  public Float sum(NullableFloatFunction1 selector) {
    return EnumerableDefaults.sum(getThis(), selector);
  }

  public Enumerable take(int count) {
    return EnumerableDefaults.take(getThis(), count);
  }

  public Enumerable takeWhile(Predicate1 predicate) {
    return EnumerableDefaults.takeWhile(getThis(), predicate);
  }

  public Enumerable takeWhile(Predicate2 predicate) {
    return EnumerableDefaults.takeWhile(getThis(), predicate);
  }

  public > OrderedEnumerable thenBy(
      Function1 keySelector) {
    return EnumerableDefaults.thenBy(getThisOrdered(), keySelector);
  }

  public  OrderedEnumerable thenBy(Function1 keySelector,
      Comparator comparator) {
    return EnumerableDefaults.thenByDescending(getThisOrdered(), keySelector,
        comparator);
  }

  public > OrderedEnumerable thenByDescending(
      Function1 keySelector) {
    return EnumerableDefaults.thenByDescending(getThisOrdered(), keySelector);
  }

  public  OrderedEnumerable thenByDescending(
      Function1 keySelector, Comparator comparator) {
    return EnumerableDefaults.thenBy(getThisOrdered(), keySelector, comparator);
  }

  public  Map toMap(Function1 keySelector) {
    return EnumerableDefaults.toMap(getThis(), keySelector);
  }

  public  Map toMap(Function1 keySelector,
      EqualityComparer comparer) {
    return EnumerableDefaults.toMap(getThis(), keySelector, comparer);
  }

  public  Map toMap(
      Function1 keySelector, Function1 elementSelector) {
    return EnumerableDefaults.toMap(getThis(), keySelector, elementSelector);
  }

  public  Map toMap(
      Function1 keySelector, Function1 elementSelector,
      EqualityComparer comparer) {
    return EnumerableDefaults.toMap(getThis(), keySelector, elementSelector,
        comparer);
  }

  public List toList() {
    return EnumerableDefaults.toList(getThis());
  }

  public  Lookup toLookup(Function1 keySelector) {
    return EnumerableDefaults.toLookup(getThis(), keySelector);
  }

  public  Lookup toLookup(Function1 keySelector,
      EqualityComparer comparer) {
    return EnumerableDefaults.toLookup(getThis(), keySelector, comparer);
  }

  public  Lookup toLookup(
      Function1 keySelector, Function1 elementSelector) {
    return EnumerableDefaults.toLookup(getThis(), keySelector, elementSelector);
  }

  public  Lookup toLookup(
      Function1 keySelector, Function1 elementSelector,
      EqualityComparer comparer) {
    return EnumerableDefaults.toLookup(getThis(), keySelector, elementSelector,
        comparer);
  }

  public Enumerable union(Enumerable source1) {
    return EnumerableDefaults.union(getThis(), source1);
  }

  public Enumerable union(Enumerable source1,
      EqualityComparer comparer) {
    return EnumerableDefaults.union(getThis(), source1, comparer);
  }

  public Enumerable where(Predicate1 predicate) {
    return EnumerableDefaults.where(getThis(), predicate);
  }

  public Enumerable where(Predicate2 predicate) {
    return EnumerableDefaults.where(getThis(), predicate);
  }

  public  Enumerable zip(Enumerable source1,
      Function2 resultSelector) {
    return EnumerableDefaults.zip(getThis(), source1, resultSelector);
  }
}