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authorbjculkin <bjculkin@WIT-136XG42.wvu-ad.wvu.edu>2017-04-07 10:51:31 -0400
committerbjculkin <bjculkin@WIT-136XG42.wvu-ad.wvu.edu>2017-04-07 10:51:31 -0400
commit63d88eb8db1f7a6d5924ec2a8b7f462373d5ac9a (patch)
tree4a7c67b23c8e1ecb1b2f992e5dbaf3ebb48dcf6b /BJC-Utils2/src/main/java/bjc/utils/data/Either.java
parent848dc739becfa41193aff9a07c918aed91e5ef79 (diff)
Cleanup
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/data/Either.java')
-rw-r--r--BJC-Utils2/src/main/java/bjc/utils/data/Either.java96
1 files changed, 50 insertions, 46 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/Either.java b/BJC-Utils2/src/main/java/bjc/utils/data/Either.java
index 3ccc859..d07fbbe 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/data/Either.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/data/Either.java
@@ -51,7 +51,7 @@ public class Either<LeftType, RightType> implements IPair<LeftType, RightType> {
private boolean isLeft;
private Either(LeftType left, RightType right) {
- if(left == null) {
+ if (left == null) {
rightVal = right;
} else {
leftVal = left;
@@ -63,7 +63,8 @@ public class Either<LeftType, RightType> implements IPair<LeftType, RightType> {
@Override
public <BoundLeft, BoundRight> IPair<BoundLeft, BoundRight> bind(
BiFunction<LeftType, RightType, IPair<BoundLeft, BoundRight>> binder) {
- if(binder == null) throw new NullPointerException("Binder must not be null");
+ if (binder == null)
+ throw new NullPointerException("Binder must not be null");
return binder.apply(leftVal, rightVal);
}
@@ -71,9 +72,11 @@ public class Either<LeftType, RightType> implements IPair<LeftType, RightType> {
@Override
public <BoundLeft> IPair<BoundLeft, RightType> bindLeft(
Function<LeftType, IPair<BoundLeft, RightType>> leftBinder) {
- if(leftBinder == null) throw new NullPointerException("Left binder must not be null");
+ if (leftBinder == null)
+ throw new NullPointerException("Left binder must not be null");
- if(isLeft) return leftBinder.apply(leftVal);
+ if (isLeft)
+ return leftBinder.apply(leftVal);
return new Either<>(null, rightVal);
}
@@ -81,9 +84,11 @@ public class Either<LeftType, RightType> implements IPair<LeftType, RightType> {
@Override
public <BoundRight> IPair<LeftType, BoundRight> bindRight(
Function<RightType, IPair<LeftType, BoundRight>> rightBinder) {
- if(rightBinder == null) throw new NullPointerException("Right binder must not be null");
+ if (rightBinder == null)
+ throw new NullPointerException("Right binder must not be null");
- if(isLeft) return new Either<>(leftVal, null);
+ if (isLeft)
+ return new Either<>(leftVal, null);
return rightBinder.apply(rightVal);
}
@@ -93,15 +98,17 @@ public class Either<LeftType, RightType> implements IPair<LeftType, RightType> {
IPair<OtherLeft, OtherRight> otherPair,
BiFunction<LeftType, OtherLeft, CombinedLeft> leftCombiner,
BiFunction<RightType, OtherRight, CombinedRight> rightCombiner) {
- if(otherPair == null)
+ if (otherPair == null)
throw new NullPointerException("Other pair must not be null");
- else if(leftCombiner == null)
+ else if (leftCombiner == null)
throw new NullPointerException("Left combiner must not be null");
- else if(rightCombiner == null) throw new NullPointerException("Right combiner must not be null");
+ else if (rightCombiner == null)
+ throw new NullPointerException("Right combiner must not be null");
- if(isLeft) return otherPair.bind((otherLeft, otherRight) -> {
- return new Either<>(leftCombiner.apply(leftVal, otherLeft), null);
- });
+ if (isLeft)
+ return otherPair.bind((otherLeft, otherRight) -> {
+ return new Either<>(leftCombiner.apply(leftVal, otherLeft), null);
+ });
return otherPair.bind((otherLeft, otherRight) -> {
return new Either<>(null, rightCombiner.apply(rightVal, otherRight));
@@ -110,25 +117,30 @@ public class Either<LeftType, RightType> implements IPair<LeftType, RightType> {
@Override
public <NewLeft> IPair<NewLeft, RightType> mapLeft(Function<LeftType, NewLeft> mapper) {
- if(mapper == null) throw new NullPointerException("Mapper must not be null");
+ if (mapper == null)
+ throw new NullPointerException("Mapper must not be null");
- if(isLeft) return new Either<>(mapper.apply(leftVal), null);
+ if (isLeft)
+ return new Either<>(mapper.apply(leftVal), null);
return new Either<>(null, rightVal);
}
@Override
public <NewRight> IPair<LeftType, NewRight> mapRight(Function<RightType, NewRight> mapper) {
- if(mapper == null) throw new NullPointerException("Mapper must not be null");
+ if (mapper == null)
+ throw new NullPointerException("Mapper must not be null");
- if(isLeft) return new Either<>(leftVal, null);
+ if (isLeft)
+ return new Either<>(leftVal, null);
return new Either<>(null, mapper.apply(rightVal));
}
@Override
public <MergedType> MergedType merge(BiFunction<LeftType, RightType, MergedType> merger) {
- if(merger == null) throw new NullPointerException("Merger must not be null");
+ if (merger == null)
+ throw new NullPointerException("Merger must not be null");
return merger.apply(leftVal, rightVal);
}
@@ -141,49 +153,41 @@ public class Either<LeftType, RightType> implements IPair<LeftType, RightType> {
result = prime * result + (isLeft ? 1231 : 1237);
result = prime * result + ((leftVal == null) ? 0 : leftVal.hashCode());
result = prime * result + ((rightVal == null) ? 0 : rightVal.hashCode());
-
+
return result;
}
@Override
public boolean equals(Object obj) {
- if(this == obj) return true;
- if(obj == null) return false;
- if(getClass() != obj.getClass()) return false;
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (!(obj instanceof Either<?, ?>))
+ return false;
Either<?, ?> other = (Either<?, ?>) obj;
- if(isLeft != other.isLeft) return false;
+ if (isLeft != other.isLeft)
+ return false;
- if(leftVal == null) {
- if(other.leftVal != null) return false;
- } else if(!leftVal.equals(other.leftVal)) return false;
+ if (leftVal == null) {
+ if (other.leftVal != null)
+ return false;
+ } else if (!leftVal.equals(other.leftVal))
+ return false;
- if(rightVal == null) {
- if(other.rightVal != null) return false;
- } else if(!rightVal.equals(other.rightVal)) return false;
+ if (rightVal == null) {
+ if (other.rightVal != null)
+ return false;
+ } else if (!rightVal.equals(other.rightVal))
+ return false;
return true;
}
@Override
public String toString() {
- StringBuilder builder = new StringBuilder();
-
- builder.append("Either [");
-
- if(leftVal != null) {
- builder.append("leftVal=");
- builder.append(leftVal);
- builder.append(", ");
- }
-
- if(rightVal != null) {
- builder.append("rightVal=");
- builder.append(rightVal);
- builder.append(", ");
- }
-
- return builder.toString();
+ return String.format("Either [leftVal='%s', rightVal='%s', isLeft=%s]", leftVal, rightVal, isLeft);
}
-}
+} \ No newline at end of file