diff options
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/data/experimental/Identity.java')
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/data/experimental/Identity.java | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/experimental/Identity.java b/BJC-Utils2/src/main/java/bjc/utils/data/experimental/Identity.java deleted file mode 100644 index 1780f2d..0000000 --- a/BJC-Utils2/src/main/java/bjc/utils/data/experimental/Identity.java +++ /dev/null @@ -1,115 +0,0 @@ -package bjc.utils.data.experimental; - -import java.util.function.Function; -import java.util.function.UnaryOperator; - -/** - * @author ben - * - * @param <ContainedType> - */ -/** - * Simple implementation of IHolder that has no hidden behavior - * - * @author ben - * - * @param <ContainedType> - * The type contained in the holder - */ -public class Identity<ContainedType> implements IHolder<ContainedType> { - private ContainedType heldValue; - - /** - * Create a holder holding null - */ - public Identity() { - heldValue = null; - } - - /** - * Create a holder holding the specified value - * - * @param value - * The value to hold - */ - public Identity(ContainedType value) { - heldValue = value; - } - - @Override - public <BoundType> IHolder<BoundType> bind( - Function<ContainedType, IHolder<BoundType>> binder) { - return binder.apply(heldValue); - } - - /* - * (non-Javadoc) - * - * @see java.lang.Object#equals(java.lang.Object) - */ - @Override - public boolean equals(Object obj) { - if (this == obj) { - return true; - } else if (obj == null) { - return false; - } else if (getClass() != obj.getClass()) { - return false; - } - - Identity<?> other = (Identity<?>) obj; - - if (heldValue == null) { - if (other.heldValue != null) { - return false; - } - } else if (!heldValue.equals(other.heldValue)) { - return false; - } - - return true; - } - - /* - * (non-Javadoc) - * - * @see java.lang.Object#hashCode() - */ - @Override - public int hashCode() { - final int prime = 31; - - int result = 1; - - int fieldHash = (heldValue == null) ? 0 : heldValue.hashCode(); - - result = prime * result + fieldHash; - - return result; - } - - @Override - public <MappedType> IHolder<MappedType> map( - Function<ContainedType, MappedType> mapper) { - return new Identity<>(mapper.apply(heldValue)); - } - - @Override - public String toString() { - return "holding[v=" + heldValue + "]"; - } - - @Override - public IHolder<ContainedType> transform( - UnaryOperator<ContainedType> transformer) { - heldValue = transformer.apply(heldValue); - - return this; - } - - @Override - public <UnwrappedType> UnwrappedType unwrap( - Function<ContainedType, UnwrappedType> unwrapper) { - return unwrapper.apply(heldValue); - } -}
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