public Class MapAdapter<K, V>

Implements java.util.Map.clear.

Doc from java.util.Map.clear.

Removes all of the mappings from this map (optional operation). The map will be empty after this call returns.

Annotations

@Override

Implements abstract org.eclipse.collections.impl.map.mutable.AbstractMutableMap.clone.

Implements org.eclipse.collections.api.map.MutableMap.clone.

Doc from java.lang.Object.clone.

Creates and returns a copy of this object. The precise meaning of "copy" may depend on the class of the object. The general intent is that, for any object x, the expression:

x.clone() != x

x.clone().getClass() == x.getClass()

x.clone().equals(x)

By convention, the returned object should be obtained by calling super.clone. If a class and all of its superclasses (except Object) obey this convention, it will be the case that x.clone().getClass() == x.getClass().

By convention, the object returned by this method should be independent of this object (which is being cloned). To achieve this independence, it may be necessary to modify one or more fields of the object returned by super.clone before returning it. Typically, this means copying any mutable objects that comprise the internal "deep structure" of the object being cloned and replacing the references to these objects with references to the copies. If a class contains only primitive fields or references to immutable objects, then it is usually the case that no fields in the object returned by super.clone need to be modified.

Annotations

@Override

Implements org.eclipse.collections.api.map.MutableMap.collectKeysAndValues.

Doc from org.eclipse.collections.api.map.MutableMap.collectKeysAndValues.

Adds all the entries derived from iterable to this. The key and value for each entry is determined by applying the keyFunction and valueFunction to each item in collection. Any entry in map that has the same key as an entry in this will have its value replaced by that in map.

Annotations

@Override

Implements org.eclipse.collections.api.map.MapIterable.containsKey, java.util.Map.containsKey.

Doc from java.util.Map.containsKey.

Returns true if this map contains a mapping for the specified key. More formally, returns true if and only if this map contains a mapping for a key k such that Objects.equals(key, k). (There can be at most one such mapping.)

Annotations

@Override

Implements org.eclipse.collections.api.map.MapIterable.containsValue, java.util.Map.containsValue.

Doc from java.util.Map.containsValue.

Returns true if this map maps one or more keys to the specified value. More formally, returns true if and only if this map contains at least one mapping to a value v such that Objects.equals(value, v). This operation will probably require time linear in the map size for most implementations of the Map interface.

Annotations

@Override

Implements java.util.Map.entrySet.

Doc from java.util.Map.entrySet.

Returns a Set view of the mappings contained in this map. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa. If the map is modified while an iteration over the set is in progress (except through the iterator's own remove operation, or through the setValue operation on a map entry returned by the iterator) the results of the iteration are undefined. The set supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Set.remove, removeAll, retainAll and clear operations. It does not support the add or addAll operations.

Annotations

@Override

Overrides java.lang.Object.equals.

Implements org.eclipse.collections.api.map.MapIterable.equals, java.util.Map.equals.

Doc from org.eclipse.collections.api.map.MapIterable.equals.

Follows the same general contract as Map#equals(Object).

Annotations

@Override

Implements org.eclipse.collections.api.map.MapIterable.forEachKeyValue.

Doc from org.eclipse.collections.api.map.MapIterable.forEachKeyValue.

Calls the procedure with each key-value pair of the map.

    final Collection<String> collection = new ArrayList<String>();
    MutableMap<Integer, String> map = this.newMapWithKeysValues(1, "One", 2, "Two", 3, "Three");
    map.forEachKeyValue((Integer key, String value) -> collection.add(String.valueOf(key) + value));
    Verify.assertContainsAll(collection, "1One", "2Two", "3Three");

Annotations

@Override

Implements org.eclipse.collections.api.map.MapIterable.get, java.util.Map.get.

Doc from java.util.Map.get.

Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.

More formally, if this map contains a mapping from a key k to a value v such that Objects.equals(key, k), then this method returns v; otherwise it returns null. (There can be at most one such mapping.)

If this map permits null values, then a return value of null does not necessarily indicate that the map contains no mapping for the key; it's also possible that the map explicitly maps the key to null. The containsKey operation may be used to distinguish these two cases.

Annotations

@Override

Overrides java.lang.Object.hashCode.

Implements org.eclipse.collections.api.map.MapIterable.hashCode, java.util.Map.hashCode.

Doc from org.eclipse.collections.api.map.MapIterable.hashCode.

Follows the same general contract as Map#hashCode().

Annotations

@Override

Overrides org.eclipse.collections.impl.AbstractRichIterable.isEmpty.

Implements org.eclipse.collections.api.RichIterable.isEmpty, java.util.Map.isEmpty.

Doc from java.util.Map.isEmpty.

Returns true if this map contains no key-value mappings.

Annotations

@Override

Overrides org.eclipse.collections.impl.map.mutable.AbstractMutableMapIterable.iterator.

Implements java.lang.Iterable.iterator.

Doc from java.lang.Iterable.iterator.

Returns an iterator over elements of type T.

Annotations

@Override

Implements java.util.Map.keySet.

Doc from java.util.Map.keySet.

Returns a Set view of the keys contained in this map. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa. If the map is modified while an iteration over the set is in progress (except through the iterator's own remove operation), the results of the iteration are undefined. The set supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Set.remove, removeAll, retainAll, and clear operations. It does not support the add or addAll operations.

Annotations

@Override

Overrides default java.util.Map.merge.

Doc from java.util.Map.merge.

If the specified key is not already associated with a value or is associated with null, associates it with the given non-null value (optional operation). Otherwise, replaces the associated value with the results of the given remapping function, or removes if the result is null. This method may be of use when combining multiple mapped values for a key. For example, to either create or append a String msg to a value mapping:

 map.merge(key, msg, String::concat)

If the remapping function returns null, the mapping is removed. If the remapping function itself throws an (unchecked) exception, the exception is rethrown, and the current mapping is left unchanged.

The remapping function should not modify this map during computation.

Annotations

@Override

Implements abstract org.eclipse.collections.impl.map.mutable.AbstractMutableMap.newEmpty.

Doc from org.eclipse.collections.impl.map.mutable.AbstractMutableMap.newEmpty.

Creates a new instance of the same type, using the given capacity and the default growth parameters.

Annotations

@Override

Implements org.eclipse.collections.api.map.MutableMap.newEmpty, org.eclipse.collections.api.map.MutableMapIterable.newEmpty.

Doc from org.eclipse.collections.api.map.MutableMapIterable.newEmpty.

Creates a new instance of the same type, using the default capacity and growth parameters.

Annotations

@Override

Implements java.util.Map.put.

Doc from java.util.Map.put.

Associates the specified value with the specified key in this map (optional operation). If the map previously contained a mapping for the key, the old value is replaced by the specified value. (A map m is said to contain a mapping for a key k if and only if m.containsKey(k) would return true.)

Annotations

@Override

Implements java.util.Map.putAll.

Doc from java.util.Map.putAll.

Copies all of the mappings from the specified map to this map (optional operation). The effect of this call is equivalent to that of calling put(k, v) on this map once for each mapping from key k to value v in the specified map. The behavior of this operation is undefined if the specified map is modified while the operation is in progress. If the specified map has a defined encounter order, processing of its mappings generally occurs in that order.

Annotations

@Override

Implements java.util.Map.remove.

Doc from java.util.Map.remove.

Removes the mapping for a key from this map if it is present (optional operation). More formally, if this map contains a mapping from key k to value v such that Objects.equals(key, k), that mapping is removed. (The map can contain at most one such mapping.)

Returns the value to which this map previously associated the key, or null if the map contained no mapping for the key.

If this map permits null values, then a return value of null does not necessarily indicate that the map contained no mapping for the key; it's also possible that the map explicitly mapped the key to null.

The map will not contain a mapping for the specified key once the call returns.

Annotations

@Override

Implements org.eclipse.collections.api.map.MutableMapIterable.removeKey.

Doc from org.eclipse.collections.api.map.MutableMapIterable.removeKey.

Remove an entry from the map at the specified key.

Annotations

@Override

Implements org.eclipse.collections.api.RichIterable.size, java.util.Map.size.

Doc from java.util.Map.size.

Returns the number of key-value mappings in this map. If the map contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.

Annotations

@Override

Overrides org.eclipse.collections.impl.map.mutable.AbstractMutableMap.toImmutable.

Implements org.eclipse.collections.api.map.MutableMapIterable.toImmutable, org.eclipse.collections.api.map.UnsortedMapIterable.toImmutable, org.eclipse.collections.api.map.MapIterable.toImmutable.

Doc from org.eclipse.collections.api.map.MutableMapIterable.toImmutable.

Returns an immutable copy of this map. If the map is immutable, it returns itself.

Annotations

@Override

Overrides org.eclipse.collections.impl.AbstractRichIterable.toString.

Implements org.eclipse.collections.api.map.MapIterable.toString, org.eclipse.collections.api.RichIterable.toString.

Doc from org.eclipse.collections.api.map.MapIterable.toString.

Returns a string with the keys and values of this map separated by commas with spaces and enclosed in curly braces. Each key and value is separated by an equals sign.

Assert.assertEquals("{1=1, 2=2, 3=3}", Maps.mutable.with(1, 1, 2, 2, 3, 3).toString());

Annotations

@Override

Implements java.util.Map.values.

Doc from java.util.Map.values.

Returns a Collection view of the values contained in this map. The collection is backed by the map, so changes to the map are reflected in the collection, and vice-versa. If the map is modified while an iteration over the collection is in progress (except through the iterator's own remove operation), the results of the iteration are undefined. The collection supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Collection.remove, removeAll, retainAll and clear operations. It does not support the add or addAll operations.

Annotations

@Override