package org.eclipse.collections.impl.bag.immutable.primitive;
import java.io.IOException;
import java.io.Serializable;
import java.util.NoSuchElementException;
import org.eclipse.collections.api.IntIterable;
import org.eclipse.collections.api.LazyIntIterable;
import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.bag.ImmutableBag;
import org.eclipse.collections.api.bag.primitive.ImmutableIntBag;
import org.eclipse.collections.api.bag.primitive.IntBag;
import org.eclipse.collections.api.bag.primitive.MutableIntBag;
import org.eclipse.collections.api.block.function.primitive.IntToObjectFunction;
import org.eclipse.collections.api.block.function.primitive.ObjectIntToObjectFunction;
import org.eclipse.collections.api.block.predicate.primitive.IntPredicate;
import org.eclipse.collections.api.block.procedure.primitive.IntIntProcedure;
import org.eclipse.collections.api.block.procedure.primitive.IntProcedure;
import org.eclipse.collections.api.iterator.IntIterator;
import org.eclipse.collections.api.list.primitive.MutableIntList;
import org.eclipse.collections.api.set.primitive.MutableIntSet;
import org.eclipse.collections.impl.bag.mutable.primitive.IntHashBag;
import org.eclipse.collections.impl.factory.Bags;
import org.eclipse.collections.impl.factory.primitive.IntBags;
import org.eclipse.collections.impl.iterator.ImmutableEmptyIntIterator;
import org.eclipse.collections.impl.lazy.primitive.LazyIntIterableAdapter;
import org.eclipse.collections.impl.list.mutable.primitive.IntArrayList;
import org.eclipse.collections.impl.set.mutable.primitive.IntHashSet;
import org.eclipse.collections.api.list.ImmutableList;
import org.eclipse.collections.api.tuple.primitive.IntIntPair;
import org.eclipse.collections.impl.factory.Lists;
import org.eclipse.collections.api.set.primitive.ImmutableIntSet;
import org.eclipse.collections.impl.factory.primitive.IntSets;
final class ImmutableIntEmptyBag implements ImmutableIntBag, Serializable
{
static final ImmutableIntBag INSTANCE = new ImmutableIntEmptyBag();
private static final long serialVersionUID = 1L;
private Object readResolve()
{
return INSTANCE;
}
@Override
public ImmutableIntBag newWith(int element)
{
return new ImmutableIntSingletonBag(element);
}
@Override
public ImmutableIntBag newWithout(int element)
{
return this;
}
@Override
public ImmutableIntBag newWithAll(IntIterable elements)
{
return IntBags.immutable.withAll(elements);
}
@Override
public ImmutableIntBag newWithoutAll(IntIterable elements)
{
return this;
}
@Override
public int size()
{
return 0;
}
@Override
public boolean isEmpty()
{
return true;
}
@Override
public boolean notEmpty()
{
return false;
}
@Override
public boolean contains(int value)
{
return false;
}
@Override
public boolean containsAll(IntIterable source)
{
return source.isEmpty();
}
@Override
public boolean containsAll(int... elements)
{
return elements.length == 0;
}
@Override
public void forEach(IntProcedure procedure)
{
}
@Override
public void each(IntProcedure procedure)
{
}
@Override
public ImmutableIntBag select(IntPredicate predicate)
{
return this;
}
@Override
public ImmutableIntSet selectUnique()
{
return IntSets.immutable.empty();
}
@Override
public ImmutableIntBag reject(IntPredicate predicate)
{
return this;
}
@Override
public <V> ImmutableBag<V> collect(IntToObjectFunction<? extends V> function)
{
return Bags.immutable.of();
}
@Override
public MutableIntList toList()
{
return new IntArrayList();
}
@Override
public int sizeDistinct()
{
return 0;
}
@Override
public int occurrencesOf(int item)
{
return 0;
}
@Override
public void forEachWithOccurrences(IntIntProcedure intIntProcedure)
{
}
@Override
public ImmutableIntBag selectByOccurrences(IntPredicate predicate)
{
return this;
}
@Override
public ImmutableList<IntIntPair> topOccurrences(int count)
{
if (count < 0)
{
throw new IllegalArgumentException("Cannot use a value of count < 0");
}
return Lists.immutable.empty();
}
@Override
public ImmutableList<IntIntPair> bottomOccurrences(int count)
{
if (count < 0)
{
throw new IllegalArgumentException("Cannot use a value of count < 0");
}
return Lists.immutable.empty();
}
@Override
public int detectIfNone(IntPredicate predicate, int ifNone)
{
return ifNone;
}
@Override
public int count(IntPredicate predicate)
{
return 0;
}
@Override
public boolean anySatisfy(IntPredicate predicate)
{
return false;
}
@Override
public long sum()
{
return 0L;
}
@Override
public int min()
{
throw new NoSuchElementException();
}
@Override
public int max()
{
throw new NoSuchElementException();
}
@Override
public int maxIfEmpty(int defaultValue)
{
return defaultValue;
}
@Override
public int minIfEmpty(int defaultValue)
{
return defaultValue;
}
@Override
public double average()
{
throw new ArithmeticException();
}
@Override
public double median()
{
throw new ArithmeticException();
}
@Override
public int[] toSortedArray()
{
return new int[0];
}
@Override
public MutableIntList toSortedList()
{
return new IntArrayList();
}
@Override
public boolean noneSatisfy(IntPredicate predicate)
{
return true;
}
@Override
public boolean allSatisfy(IntPredicate predicate)
{
return true;
}
@Override
public <T> T injectInto(T injectedValue, ObjectIntToObjectFunction<? super T, ? extends T> function)
{
return injectedValue;
}
@Override
public RichIterable<IntIterable> chunk(int size)
{
return Lists.immutable.empty();
}
@Override
public boolean equals(Object obj)
{
if (obj == this)
{
return true;
}
if (!(obj instanceof IntBag))
{
return false;
}
IntBag bag = (IntBag) obj;
return bag.isEmpty();
}
@Override
public int hashCode()
{
return 0;
}
@Override
public MutableIntSet toSet()
{
return new IntHashSet();
}
@Override
public MutableIntBag toBag()
{
return new IntHashBag();
}
@Override
public ImmutableIntBag toImmutable()
{
return this;
}
@Override
public LazyIntIterable asLazy()
{
return new LazyIntIterableAdapter(this);
}
@Override
public int[] toArray()
{
return new int[0];
}
@Override
public int[] toArray(int[] target)
{
return target;
}
@Override
public String toString()
{
return "[]";
}
@Override
public String makeString()
{
return "";
}
@Override
public String makeString(String separator)
{
return "";
}
@Override
public String makeString(String start, String separator, String end)
{
return start + end;
}
@Override
public void appendString(Appendable appendable)
{
}
@Override
public void appendString(Appendable appendable, String separator)
{
}
@Override
public void appendString(Appendable appendable, String start, String separator, String end)
{
try
{
appendable.append(start);
appendable.append(end);
}
catch (IOException e)
{
throw new RuntimeException(e);
}
}
@Override
public IntIterator intIterator()
{
return ImmutableEmptyIntIterator.INSTANCE;
}
}