public abstract Class AbstractMutableCollection<T>

Implements java.util.Collection.add.

Doc from java.util.Collection.add.

Ensures that this collection contains the specified element (optional operation). Returns true if this collection changed as a result of the call. (Returns false if this collection does not permit duplicates and already contains the specified element.)

Collections that support this operation may place limitations on what elements may be added to this collection. In particular, some collections will refuse to add null elements, and others will impose restrictions on the type of elements that may be added. Collection classes should clearly specify in their documentation any restrictions on what elements may be added.

If a collection refuses to add a particular element for any reason other than that it already contains the element, it must throw an exception (rather than returning false). This preserves the invariant that a collection always contains the specified element after this call returns.

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@Override

Implements java.util.Collection.addAll.

Doc from java.util.Collection.addAll.

Adds all of the elements in the specified collection to this collection (optional operation). The behavior of this operation is undefined if the specified collection is modified while the operation is in progress. (This implies that the behavior of this call is undefined if the specified collection is this collection, and this collection is nonempty.) If the specified collection has a defined encounter order, processing of its elements generally occurs in that order.

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@Override

Implements org.eclipse.collections.api.collection.MutableCollection.addAllIterable.

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@Override

Implements org.eclipse.collections.api.RichIterable.chunk.

Doc from org.eclipse.collections.api.RichIterable.chunk.

Partitions elements in fixed size chunks.

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@Override

Overrides default org.eclipse.collections.api.collection.MutableCollection.countBy, org.eclipse.collections.api.RichIterable.countBy.

Doc from org.eclipse.collections.api.RichIterable.countBy.

This method will count the number of occurrences of each value calculated by applying the function to each element of the collection.

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@Override

Since

9.0

Overrides org.eclipse.collections.impl.AbstractRichIterable.countByEach.

Overrides default org.eclipse.collections.api.collection.MutableCollection.countByEach, org.eclipse.collections.api.RichIterable.countByEach.

Doc from org.eclipse.collections.api.RichIterable.countByEach.

This method will count the number of occurrences of each value calculated by applying the function to each element of the collection.

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@Override

Since

10.0.0

Overrides default org.eclipse.collections.api.collection.MutableCollection.countByWith, org.eclipse.collections.api.RichIterable.countByWith.

Doc from org.eclipse.collections.api.RichIterable.countByWith.

This method will count the number of occurrences of each value calculated by applying the function to each element of the collection with the specified parameter as the second argument.

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@Override

Since

9.0

Overrides default org.eclipse.collections.api.collection.MutableCollection.groupByUniqueKey.

Implements org.eclipse.collections.api.RichIterable.groupByUniqueKey.

Doc from org.eclipse.collections.api.RichIterable.groupByUniqueKey.

For each element of the iterable, the function is evaluated, and the results of these evaluations are collected into a new map, where the transformed value is the key. The generated keys must each be unique, or else an exception is thrown.

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@Override

Implements org.eclipse.collections.api.collection.MutableCollection.injectIntoWith.

Doc from org.eclipse.collections.api.collection.MutableCollection.injectIntoWith.

Returns the final result of evaluating function using each element of the iterable, the previous evaluation result and the parameters. The injected value is used for the first parameter of the first evaluation, and the current item in the iterable is used as the second parameter. The parameter value is always used as the third parameter to the function call.

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@Override

Overrides default org.eclipse.collections.api.RichIterable.reduce.

Doc from org.eclipse.collections.api.RichIterable.reduce.

This method produces the equivalent result as Stream#reduce(BinaryOperator).

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@Override

Implements java.util.Collection.remove.

Doc from java.util.Collection.remove.

Removes a single instance of the specified element from this collection, if it is present (optional operation). More formally, removes an element e such that Objects.equals(o, e), if this collection contains one or more such elements. Returns true if this collection contained the specified element (or equivalently, if this collection changed as a result of the call).

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@Override

Implements java.util.Collection.removeAll.

Doc from java.util.Collection.removeAll.

Removes all of this collection's elements that are also contained in the specified collection (optional operation). After this call returns, this collection will contain no elements in common with the specified collection.

Annotations

@Override

Implements org.eclipse.collections.api.collection.MutableCollection.removeAllIterable.

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@Override

Implements org.eclipse.collections.api.collection.MutableCollection.removeIf.

Doc from org.eclipse.collections.api.collection.MutableCollection.removeIf.

Removes all elements in the collection that evaluate to true for the specified predicate.

e.g.
return lastNames.removeIf(Predicates.isNull());

Annotations

@Override

Implements org.eclipse.collections.api.collection.MutableCollection.removeIfWith.

Doc from org.eclipse.collections.api.collection.MutableCollection.removeIfWith.

Removes all elements in the collection that evaluate to true for the specified predicate2 and parameter.

return lastNames.removeIfWith(Predicates2.isNull(), null);

Annotations

@Override

Implements java.util.Collection.retainAll.

Doc from java.util.Collection.retainAll.

Retains only the elements in this collection that are contained in the specified collection (optional operation). In other words, removes from this collection all of its elements that are not contained in the specified collection.

Annotations

@Override

Implements org.eclipse.collections.api.collection.MutableCollection.retainAllIterable.

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@Override

Implements org.eclipse.collections.api.collection.MutableCollection.selectAndRejectWith.

Doc from org.eclipse.collections.api.collection.MutableCollection.selectAndRejectWith.

Filters a collection into two separate collections based on a predicate returned via a Pair.

e.g.
return lastNames.selectAndRejectWith(Predicates2.lessThan(), "Mason");

Annotations

@Override

Implements org.eclipse.collections.api.collection.MutableCollection.sumByDouble, org.eclipse.collections.api.RichIterable.sumByDouble.

Doc from org.eclipse.collections.api.RichIterable.sumByDouble.

Groups and sums the values using the two specified functions.

Annotations

@Override

Implements org.eclipse.collections.api.collection.MutableCollection.sumByFloat, org.eclipse.collections.api.RichIterable.sumByFloat.

Doc from org.eclipse.collections.api.RichIterable.sumByFloat.

Groups and sums the values using the two specified functions.

Annotations

@Override

Implements org.eclipse.collections.api.collection.MutableCollection.sumByInt, org.eclipse.collections.api.RichIterable.sumByInt.

Doc from org.eclipse.collections.api.RichIterable.sumByInt.

Groups and sums the values using the two specified functions.

Annotations

@Override

Implements org.eclipse.collections.api.collection.MutableCollection.sumByLong, org.eclipse.collections.api.RichIterable.sumByLong.

Doc from org.eclipse.collections.api.RichIterable.sumByLong.

Groups and sums the values using the two specified functions.

Annotations

@Override