Package rma.util

Class LongVector

java.lang.Object
rma.util.LongVector
All Implemented Interfaces:
AsciiSerializable, FieldAccessor, Serializable, Cloneable
public class LongVector extends Object implements Cloneable, Serializable, AsciiSerializable
The LongVector class implements a growable array of long primatives. Like an array, it contains components that can be accessed using an integer index. However, the size of a LongVector can grow or shrink as needed to accommodate adding and removing items after the LongVector has been created.

Each vector tries to optimize storage management by maintaining a capacity and a capacityIncrement. The capacity is always at least as large as the vector size; it is usually larger because as components are added to the vector, the vector's storage increases in chunks the size of capacityIncrement. An application can increase the capacity of a vector before inserting a large number of components; this reduces the amount of incremental reallocation.

See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected int
    capacityIncrement
    The amount by which the capacity of the vector is automatically incremented when its size becomes greater than its capacity.
    protected int
    elementCount
    The number of valid components in the vector.
    protected long[]
    elementData
    The array buffer into which the components of the vector are stored.

  • Constructor Summary

    Constructors
    Constructor
    Description
    LongVector()
    Constructs an empty vector.
    LongVector(int initialCapacity)
    Constructs an empty vector with the specified initial capacity.
    LongVector(int initialCapacity, int capacityIncrement)
    Constructs an empty vector with the specified initial capacity and capacity increment.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    add(long obj)
    Adds the specified component to the end of this vector, increasing its size by one.
    boolean
    addAll(long[] array)
     
    final void
    addElement(long obj)
    Adds the specified component to the end of this vector, increasing its size by one.
    final int
    capacity()
    Returns the current capacity of this vector.
    void
    clear()
    Removes all components from this vector and sets its size to zero.
    Object
    clone()
    Returns a clone of this vector.
    final boolean
    contains(long elem)
    Tests if the specified long is a component in this vector.
    final void
    copyInto(long[] anArray)
    Copies the components of this vector into the specified array.
    final long
    elementAt(int index)
    Returns the component at the specified index.
    final void
    ensureCapacity(int minCapacity)
    Increases the capacity of this vector, if necessary, to ensure that it can hold at least the number of components specified by the minimum capacity argument.
    final long
    firstElement()
    Returns the first component of this vector.
    long
    get(int index)
    Returns the component at the specified index.
    Object
    getFieldObject(Field fld)
    This method allows access to java.lang.reflect.Field objects within the implementing class.
    final int
    indexOf(long elem)
    Searches for the first occurence of the given argument, testing for equality using the equals method.
    final int
    indexOf(long elem, int index)
    Searches for the first occurence of the given argument, beginning the search at index, and testing for equality using the equals method.
    final void
    insertElementAt(long obj, int index)
    Inserts the specified long as a component in this vector at the specified index.
    final boolean
    isEmpty()
    Tests if this vector has no components.
    final long
    lastElement()
    Returns the last component of the vector.
    final int
    lastIndexOf(long elem)
    Returns the index of the last occurrence of the specified long in this vector.
    final int
    lastIndexOf(long elem, int index)
    Searches backwards for the specified long, starting from the specified index, and returns an index to it.
    boolean
    remove(long obj)
    Removes the first occurrence of the argument from this vector.
    final void
    removeAllElements()
    Removes all components from this vector and sets its size to zero.
    final boolean
    removeElement(long obj)
    Removes the first occurrence of the argument from this vector.
    final void
    removeElementAt(int index)
    Deletes the component at the specified index.
    final void
    setElementAt(long obj, int index)
    Sets the component at the specified index of this vector to be the specified long.
    boolean
    setFieldObject(Field fld, Object fobj)
    This allows access to fields withing the implementing object to set there data.
    final void
    setSize(int newSize)
    Sets the size of this vector.
    final int
    size()
    Returns the number of components in this vector.
    final String
    toString()
    Returns a string representation of this vector.
    final void
    trimToSize()
    Trims the capacity of this vector to be the vector's current size.

    Methods inherited from class java.lang.Object

    equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Field Details

    • elementData

      protected long[] elementData
      The array buffer into which the components of the vector are stored. The capacity of the vector is the length of this array buffer.
      Since:
      JDK1.0

    • elementCount

      protected int elementCount
      The number of valid components in the vector.
      Since:
      JDK1.0

    • capacityIncrement

      protected int capacityIncrement
      The amount by which the capacity of the vector is automatically incremented when its size becomes greater than its capacity. If the capacity increment is 0, the capacity of the vector is doubled each time it needs to grow.
      Since:
      JDK1.0

  • Constructor Details

    • LongVector

      public LongVector(int initialCapacity, int capacityIncrement)
      Constructs an empty vector with the specified initial capacity and capacity increment.
      Parameters:
      initialCapacity - the initial capacity of the vector.
      capacityIncrement - the amount by which the capacity is increased when the vector overflows.
      Since:
      JDK1.0

    • LongVector

      public LongVector(int initialCapacity)
      Constructs an empty vector with the specified initial capacity.
      Parameters:
      initialCapacity - the initial capacity of the vector.
      Since:
      JDK1.0

    • LongVector

      public LongVector()
      Constructs an empty vector.
      Since:
      JDK1.0

  • Method Details

    • copyInto

      public final void copyInto(long[] anArray)
      Copies the components of this vector into the specified array. The array must be big enough to hold all the longs in this vector.
      Parameters:
      anArray - the array into which the components get copied.
      Since:
      JDK1.0

    • trimToSize

      public final void trimToSize()
      Trims the capacity of this vector to be the vector's current size. An application can use this operation to minimize the storage of a vector.
      Since:
      JDK1.0

    • ensureCapacity

      public final void ensureCapacity(int minCapacity)
      Increases the capacity of this vector, if necessary, to ensure that it can hold at least the number of components specified by the minimum capacity argument.
      Parameters:
      minCapacity - the desired minimum capacity.
      Since:
      JDK1.0

    • setSize

      public final void setSize(int newSize)
      Sets the size of this vector. If the new size is greater than the current size, new RMAConst.UNDEF_LONG items are added to the end of the vector. If the new size is less than the current size, all components at index newSize and greater are discarded.
      Parameters:
      newSize - the new size of this vector.
      Since:
      JDK1.0

    • capacity

      public final int capacity()
      Returns the current capacity of this vector.
      Returns:
      the current capacity of this vector.
      Since:
      JDK1.0

    • size

      public final int size()
      Returns the number of components in this vector.
      Returns:
      the number of components in this vector.
      Since:
      JDK1.0

    • isEmpty

      public final boolean isEmpty()
      Tests if this vector has no components.
      Returns:
      true if this vector has no components; false otherwise.
      Since:
      JDK1.0

    • contains

      public final boolean contains(long elem)
      Tests if the specified long is a component in this vector.
      Parameters:
      elem - an long.
      Returns:
      true if the specified long is a component in this vector; false otherwise.
      Since:
      JDK1.0

    • indexOf

      public final int indexOf(long elem)
      Searches for the first occurence of the given argument, testing for equality using the equals method.
      Parameters:
      elem - an long.
      Returns:
      the index of the first occurrence of the argument in this vector; returns -1 if the long is not found.
      Since:
      JDK1.0
      See Also:

    • indexOf

      public final int indexOf(long elem, int index)
      Searches for the first occurence of the given argument, beginning the search at index, and testing for equality using the equals method.
      Parameters:
      elem - an long.
      index - the index to start searching from.
      Returns:
      the index of the first occurrence of the long argument in this vector at position index or later in the vector; returns -1 if the long is not found.
      Since:
      JDK1.0
      See Also:

    • lastIndexOf

      public final int lastIndexOf(long elem)
      Returns the index of the last occurrence of the specified long in this vector.
      Parameters:
      elem - the desired component.
      Returns:
      the index of the last occurrence of the specified long in this vector; returns -1 if the long is not found.
      Since:
      JDK1.0

    • lastIndexOf

      public final int lastIndexOf(long elem, int index)
      Searches backwards for the specified long, starting from the specified index, and returns an index to it.
      Parameters:
      elem - the desired component.
      index - the index to start searching from.
      Returns:
      the index of the last occurrence of the specified long in this vector at position less than index in the vector; -1 if the long is not found.
      Since:
      JDK1.0

    • get

      public long get(int index)
      Returns the component at the specified index. wrapper for elementAt(int);

    • elementAt

      public final long elementAt(int index)
      Returns the component at the specified index.
      Parameters:
      index - an index into this vector.
      Returns:
      the component at the specified index.
      Throws:
      ArrayIndexOutOfBoundsException - if an invalid index was given.
      Since:
      JDK1.0

    • firstElement

      public final long firstElement()
      Returns the first component of this vector.
      Returns:
      the first component of this vector.
      Throws:
      NoSuchElementException - if this vector has no components.
      Since:
      JDK1.0

    • lastElement

      public final long lastElement()
      Returns the last component of the vector.
      Returns:
      the last component of the vector, i.e., the component at index size() - 1.
      Throws:
      NoSuchElementException - if this vector is empty.
      Since:
      JDK1.0

    • setElementAt

      public final void setElementAt(long obj, int index)
      Sets the component at the specified index of this vector to be the specified long. The previous component at that position is discarded.

      The index must be a value greater than or equal to 0 and less than the current size of the vector.

      Parameters:
      obj - what the component is to be set to.
      index - the specified index.
      Throws:
      ArrayIndexOutOfBoundsException - if the index was invalid.
      Since:
      JDK1.0
      See Also:

    • removeElementAt

      public final void removeElementAt(int index)
      Deletes the component at the specified index. Each component in this vector with an index greater or equal to the specified index is shifted downward to have an index one smaller than the value it had previously.

      The index must be a value greater than or equal to 0 and less than the current size of the vector.

      Parameters:
      index - the index of the long to remove.
      Throws:
      ArrayIndexOutOfBoundsException - if the index was invalid.
      Since:
      JDK1.0
      See Also:

    • insertElementAt

      public final void insertElementAt(long obj, int index)
      Inserts the specified long as a component in this vector at the specified index. Each component in this vector with an index greater or equal to the specified index is shifted upward to have an index one greater than the value it had previously.

      The index must be a value greater than or equal to 0 and less than or equal to the current size of the vector.

      Parameters:
      obj - the component to insert.
      index - where to insert the new component.
      Throws:
      ArrayIndexOutOfBoundsException - if the index was invalid.
      Since:
      JDK1.0
      See Also:

    • add

      public void add(long obj)
      Adds the specified component to the end of this vector, increasing its size by one. The capacity of this vector is increased if its size becomes greater than its capacity. wrapper for addElement(long);

    • addElement

      public final void addElement(long obj)
      Adds the specified component to the end of this vector, increasing its size by one. The capacity of this vector is increased if its size becomes greater than its capacity.
      Parameters:
      obj - the component to be added.
      Since:
      JDK1.0

    • addAll

      public boolean addAll(long[] array)

    • remove

      public boolean remove(long obj)
      Removes the first occurrence of the argument from this vector. If the long is found in this vector, each component in the vector with an index greater or equal to the long's index is shifted downward to have an index one smaller than the value it had previously. wrapper for removeElement(long)

    • removeElement

      public final boolean removeElement(long obj)
      Removes the first occurrence of the argument from this vector. If the long is found in this vector, each component in the vector with an index greater or equal to the long's index is shifted downward to have an index one smaller than the value it had previously.
      Parameters:
      obj - the component to be removed.
      Returns:
      true if the argument was a component of this vector; false otherwise.
      Since:
      JDK1.0

    • clear

      public void clear()
      Removes all components from this vector and sets its size to zero. wrapper for removeAllElements();

    • removeAllElements

      public final void removeAllElements()
      Removes all components from this vector and sets its size to zero.
      Since:
      JDK1.0

    • clone

      public Object clone()
      Returns a clone of this vector.
      Overrides:
      clone in class Object
      Returns:
      a clone of this vector.
      Since:
      JDK1.0

    • toString

      public final String toString()
      Returns a string representation of this vector.
      Overrides:
      toString in class Object
      Returns:
      a string representation of this vector.
      Since:
      JDK1.0

    • getFieldObject

      public Object getFieldObject(Field fld)
      Description copied from interface: FieldAccessor
      This method allows access to java.lang.reflect.Field objects within the implementing class.
      Specified by:
      getFieldObject in interface FieldAccessor
      Parameters:
      fld - The field to get.
      Returns:
      The data object that is stored in the given field

    • setFieldObject

      public boolean setFieldObject(Field fld, Object fobj)
      Description copied from interface: FieldAccessor
      This allows access to fields withing the implementing object to set there data.
      Specified by:
      setFieldObject in interface FieldAccessor
      Parameters:
      fld - The java field object representing the member field to be set
      fobj - The data to set in that field
      Returns:
      returns true if successful