diff options
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/esodata/TapeLibrary.java')
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/esodata/TapeLibrary.java | 89 |
1 files changed, 35 insertions, 54 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/esodata/TapeLibrary.java b/BJC-Utils2/src/main/java/bjc/utils/esodata/TapeLibrary.java index 85bea49..4a5add6 100644 --- a/BJC-Utils2/src/main/java/bjc/utils/esodata/TapeLibrary.java +++ b/BJC-Utils2/src/main/java/bjc/utils/esodata/TapeLibrary.java @@ -16,8 +16,8 @@ import java.util.Map; * The element type of the tapes. */ public class TapeLibrary<T> implements Tape<T> { - private Map<String, Tape<T>> tapes; - private Tape<T> currentTape; + private final Map<String, Tape<T>> tapes; + private Tape<T> currentTape; /** * Create a new empty tape library. @@ -33,8 +33,7 @@ public class TapeLibrary<T> implements Tape<T> { */ @Override public T item() { - if (currentTape == null) - return null; + if (currentTape == null) return null; return currentTape.item(); } @@ -46,9 +45,8 @@ public class TapeLibrary<T> implements Tape<T> { * The new value for the tape item. */ @Override - public void item(T itm) { - if (currentTape == null) - return; + public void item(final T itm) { + if (currentTape == null) return; currentTape.item(itm); } @@ -60,8 +58,7 @@ public class TapeLibrary<T> implements Tape<T> { */ @Override public int size() { - if (currentTape == null) - return 0; + if (currentTape == null) return 0; return currentTape.size(); } @@ -73,9 +70,8 @@ public class TapeLibrary<T> implements Tape<T> { * The item to add. */ @Override - public void insertBefore(T itm) { - if (currentTape == null) - return; + public void insertBefore(final T itm) { + if (currentTape == null) return; currentTape.insertBefore(itm); } @@ -84,9 +80,8 @@ public class TapeLibrary<T> implements Tape<T> { * Insert an element after the current item. */ @Override - public void insertAfter(T itm) { - if (currentTape == null) - return; + public void insertAfter(final T itm) { + if (currentTape == null) return; currentTape.insertAfter(itm); } @@ -101,8 +96,7 @@ public class TapeLibrary<T> implements Tape<T> { */ @Override public T remove() { - if (currentTape == null) - return null; + if (currentTape == null) return null; return currentTape.remove(); } @@ -112,8 +106,7 @@ public class TapeLibrary<T> implements Tape<T> { */ @Override public void first() { - if (currentTape == null) - return; + if (currentTape == null) return; currentTape.first(); } @@ -123,8 +116,7 @@ public class TapeLibrary<T> implements Tape<T> { */ @Override public void last() { - if (currentTape == null) - return; + if (currentTape == null) return; currentTape.last(); } @@ -153,9 +145,8 @@ public class TapeLibrary<T> implements Tape<T> { * @return True if the cursor was moved left. */ @Override - public boolean left(int amt) { - if (currentTape == null) - return false; + public boolean left(final int amt) { + if (currentTape == null) return false; return currentTape.left(amt); } @@ -183,9 +174,8 @@ public class TapeLibrary<T> implements Tape<T> { * @return Whether the cursor was moved right. */ @Override - public boolean right(int amt) { - if (currentTape == null) - return false; + public boolean right(final int amt) { + if (currentTape == null) return false; return currentTape.right(amt); } @@ -199,8 +189,7 @@ public class TapeLibrary<T> implements Tape<T> { * If the current tape is not double-sided, does nothing. */ public void flip() { - if (currentTape == null) - return; + if (currentTape == null) return; if (currentTape.isDoubleSided()) { ((DoubleTape<T>) currentTape).flip(); @@ -209,8 +198,7 @@ public class TapeLibrary<T> implements Tape<T> { @Override public boolean isDoubleSided() { - if (currentTape == null) - return false; + if (currentTape == null) return false; return currentTape.isDoubleSided(); } @@ -235,7 +223,7 @@ public class TapeLibrary<T> implements Tape<T> { * * @return Whether or not the next tape was loaded. */ - public boolean switchTape(String label) { + public boolean switchTape(final String label) { if (tapes.containsKey(label)) { currentTape = tapes.get(label); return true; @@ -252,14 +240,14 @@ public class TapeLibrary<T> implements Tape<T> { * The specified tape is loaded. * * Adding a duplicate tape will overwrite any existing types. - * + * * @param label * The label of the tape to add. * * @param tp * The tape to insert and load. */ - public void insertTape(String label, Tape<T> tp) { + public void insertTape(final String label, final Tape<T> tp) { tapes.put(label, tp); currentTape = tp; @@ -275,7 +263,7 @@ public class TapeLibrary<T> implements Tape<T> { * * @return The removed tape. */ - public Tape<T> removeTape(String label) { + public Tape<T> removeTape(final String label) { return tapes.remove(label); } @@ -305,7 +293,7 @@ public class TapeLibrary<T> implements Tape<T> { * * @return Whether or not a tape of that name exists */ - public boolean hasTape(String label) { + public boolean hasTape(final String label) { return tapes.containsKey(label); } @@ -314,34 +302,27 @@ public class TapeLibrary<T> implements Tape<T> { final int prime = 31; int result = 1; - result = prime * result + ((currentTape == null) ? 0 : currentTape.hashCode()); - result = prime * result + ((tapes == null) ? 0 : tapes.hashCode()); + result = prime * result + (currentTape == null ? 0 : currentTape.hashCode()); + result = prime * result + (tapes == null ? 0 : tapes.hashCode()); return result; } @Override - public boolean equals(Object obj) { - if (this == obj) - return true; - if (obj == null) - return false; - if (!(obj instanceof TapeLibrary<?>)) - return false; + public boolean equals(final Object obj) { + if (this == obj) return true; + if (obj == null) return false; + if (!(obj instanceof TapeLibrary<?>)) return false; - TapeLibrary<?> other = (TapeLibrary<?>) obj; + final TapeLibrary<?> other = (TapeLibrary<?>) obj; if (currentTape == null) { - if (other.currentTape != null) - return false; - } else if (!currentTape.equals(other.currentTape)) - return false; + if (other.currentTape != null) return false; + } else if (!currentTape.equals(other.currentTape)) return false; if (tapes == null) { - if (other.tapes != null) - return false; - } else if (!tapes.equals(other.tapes)) - return false; + if (other.tapes != null) return false; + } else if (!tapes.equals(other.tapes)) return false; return true; } |