/*
* Copyright 2012 Goldman Sachs.
*
* Licensed 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.gs.collections.impl.set.strategy.immutable;
import com.gs.collections.api.block.HashingStrategy;
import com.gs.collections.api.factory.set.strategy.ImmutableHashingStrategySetFactory;
import com.gs.collections.api.set.ImmutableSet;
import com.gs.collections.impl.utility.Iterate;
import net.jcip.annotations.Immutable;
@Immutable
public final class ImmutableHashingStrategySetFactoryImpl implements ImmutableHashingStrategySetFactory
{
public <T> ImmutableSet<T> of(HashingStrategy<? super T> hashingStrategy)
{
return this.with(hashingStrategy);
}
public <T> ImmutableSet<T> with(HashingStrategy<? super T> hashingStrategy)
{
return new ImmutableEmptySetWithHashingStrategy<T>(hashingStrategy);
}
public <T> ImmutableSet<T> of(HashingStrategy<? super T> hashingStrategy, T... items)
{
return this.with(hashingStrategy, items);
}
public <T> ImmutableSet<T> with(HashingStrategy<? super T> hashingStrategy, T... items)
{
if (items == null || items.length == 0)
{
return this.of(hashingStrategy);
}
return ImmutableUnifiedSetWithHashingStrategy.newSetWith(hashingStrategy, items);
}
public <T> ImmutableSet<T> ofAll(HashingStrategy<? super T> hashingStrategy, Iterable<? extends T> items)
{
return this.withAll(hashingStrategy, items);
}
public <T> ImmutableSet<T> withAll(HashingStrategy<? super T> hashingStrategy, Iterable<? extends T> items)
{
return this.with(hashingStrategy, (T[]) Iterate.toArray(items));
}
}