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Diffstat (limited to 'base/src/main/java/bjc/utils/data/Identity.java')
-rw-r--r--base/src/main/java/bjc/utils/data/Identity.java112
1 files changed, 0 insertions, 112 deletions
diff --git a/base/src/main/java/bjc/utils/data/Identity.java b/base/src/main/java/bjc/utils/data/Identity.java
deleted file mode 100644
index 44ddc31..0000000
--- a/base/src/main/java/bjc/utils/data/Identity.java
+++ /dev/null
@@ -1,112 +0,0 @@
-package bjc.utils.data;
-
-import java.util.function.Function;
-import java.util.function.UnaryOperator;
-
-/**
- * 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> {
- /* The held value. */
- 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(final ContainedType value) {
- heldValue = value;
- }
-
- @Override
- public <BoundType> IHolder<BoundType> bind(final Function<ContainedType, IHolder<BoundType>> binder) {
- return binder.apply(heldValue);
- }
-
- @Override
- public int hashCode() {
- final int prime = 31;
- int result = 1;
-
- result = prime * result + (heldValue == null ? 0 : heldValue.hashCode());
-
- return result;
- }
-
- @Override
- public boolean equals(final Object obj) {
- if(this == obj) return true;
- if(obj == null) return false;
- if(!(obj instanceof Identity)) return false;
-
- final Identity<?> other = (Identity<?>) obj;
-
- if(heldValue == null) {
- if(other.heldValue != null) return false;
- } else if(!heldValue.equals(other.heldValue)) return false;
-
- return true;
- }
-
- @Override
- public <NewType> Function<ContainedType, IHolder<NewType>> lift(final Function<ContainedType, NewType> func) {
- return (val) -> {
- return new Identity<>(func.apply(val));
- };
- }
-
- @Override
- public <MappedType> IHolder<MappedType> map(final Function<ContainedType, MappedType> mapper) {
- return new Identity<>(mapper.apply(heldValue));
- }
-
- @Override
- public String toString() {
- return String.format("Identity [heldValue=%s]", heldValue);
- }
-
- @Override
- public IHolder<ContainedType> transform(final UnaryOperator<ContainedType> transformer) {
- heldValue = transformer.apply(heldValue);
-
- return this;
- }
-
- @Override
- public <UnwrappedType> UnwrappedType unwrap(final Function<ContainedType, UnwrappedType> unwrapper) {
- return unwrapper.apply(heldValue);
- }
-
- /**
- * Create a new identity container.
- *
- * @param val
- * The contained value.
- *
- * @return A new identity container.
- */
- public static <ContainedType> Identity<ContainedType> id(final ContainedType val) {
- return new Identity<>(val);
- }
-
- /**
- * Create a new empty identity container.
- *
- * @return A new empty identity container.
- */
- public static <ContainedType> Identity<ContainedType> id() {
- return new Identity<>();
- }
-}