com.klg.jclass.table.data
Class AbstractVectorDataSource

java.lang.Object
  |
  +--com.klg.jclass.table.data.AbstractDataSource
        |
        +--com.klg.jclass.table.data.AbstractVectorDataSource

All Implemented Interfaces:

JCTableDataModel, Serializable, TableDataModel

Direct Known Subclasses:

JCCachedDataSource, JCVectorDataSource

public abstract class AbstractVectorDataSource

extends AbstractDataSource

The AbstractVectorDataSource abstract class implements the TableDataModel interface and support for block moves, insertions and deletions to Vector.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.klg.jclass.table.data.AbstractDataSource

listeners

Constructor Summary

AbstractVectorDataSource()

Method Summary

protected static Vector	createVector() Default constructor, constructs a vector with initial capacity of 1 and a growth capacityIncrement of 10.
protected static Vector	createVector(int initialCapacity) Constructs a vector with the specified initial size and a capacityIncrement of 10
protected static Vector	createVector(int initialCapacity, int capacityIncrement) Constructs an empty vector with the specified initial capacity and capacity increment.
protected static Vector	createVector(Object[] array) Creates a JCVector using an array of objects.
protected static Vector	createVector(Vector vector) Creates a new Vector instance from a Vector.
protected static void	removeElementsAt(Vector vector, int index, int length) Deletes a block starting at the specified index.
protected static void	setElementAt(Vector vector, int index, Object value) Sets the element at the specified index to be the specified object.
protected static void	strip(Vector vector) Trims null values from the end.

Methods inherited from class com.klg.jclass.table.data.AbstractDataSource

addTableDataListener, dispose, fireColumnChanged, fireColumnLabelChanged, fireColumnsAdded, fireColumnsDeleted, fireColumnsMoved, fireDataReset, fireNumColumnsChanged, fireNumRowsChanged, fireRowChanged, fireRowDeleted, fireRowLabelChanged, fireRowsAdded, fireRowsMoved, fireTableDataEvent, fireValueChanged, hasListeners, removeTableDataListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.klg.jclass.util.JCTableDataModel

getNumColumns, getNumRows, getTableColumnLabel, getTableDataItem, getTableRowLabel

Constructor Detail

AbstractVectorDataSource

public AbstractVectorDataSource()

Method Detail

createVector

protected static Vector createVector()

Default constructor, constructs a vector with initial capacity of 1 and a growth capacityIncrement of 10.

createVector

protected static Vector createVector(int initialCapacity)

Constructs a vector with the specified initial size and a capacityIncrement of 10

Parameters:

initialCapacity - initial size of vector

createVector

protected static Vector createVector(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. If 0, the capacity of the vector is doubled each time it needs to grow.

createVector

protected static Vector createVector(Vector vector)

Creates a new Vector instance from a Vector. Note that any elements that are Vectors are recursively recreated.

Parameters:

vector - instance to be recreated.

createVector

protected static Vector createVector(Object[] array)

Creates a JCVector using an array of objects. If the array is null, the vector is cleared.

Parameters:

array - array to use as the source for this vector

removeElementsAt

protected static final void removeElementsAt(Vector vector,
                                             int index,
                                             int length)

Deletes a block starting at the specified index. Elements with an index greater than the end point of the block are moved up.

Parameters:

index - the element to remove

length - the number of elements to delete

setElementAt

protected static void setElementAt(Vector vector,
                                   int index,
                                   Object value)

Sets the element at the specified index to be the specified object. The previous element at this position is discarded. In contrast to Vector.setElementAt(), the size of the vector is increased if necessary.

Parameters:

index - the specified index

value - the value set to the element

strip

protected static final void strip(Vector vector)

Trims null values from the end.

See Also:

Vector.trimToSize()