org.das2.qds.util

Class ValuesTreeModel

java.lang.Object

javax.swing.tree.DefaultTreeModel

org.das2.qds.util.ValuesTreeModel

All Implemented Interfaces:

java.io.Serializable, javax.swing.tree.TreeModel

public class ValuesTreeModel
extends javax.swing.tree.DefaultTreeModel

provides a TreeModel representation of the dataset's properties.

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.tree.DefaultTreeModel

asksAllowsChildren, listenerList, root

Constructor Summary

Constructors

Constructor and Description
ValuesTreeModel(QDataSet ds)
ValuesTreeModel(java.lang.String prefix, QDataSet ds)

Method Summary

Modifier and Type	Method and Description
static javax.swing.tree.MutableTreeNode	valuesTreeNode(java.lang.String prefix, javax.swing.tree.MutableTreeNode aroot, QDataSet ds, int sizeLimit) return a tree node for the values of a dataset.
static javax.swing.tree.TreeNode	valuesTreeNode2(java.lang.String prefix, javax.swing.tree.TreeNode parent, QDataSet ds) The valuesTreeNode implementation that uses MutableTreeNodes cannot scale to very large datasets, since all nodes are created immediately.

Methods inherited from class javax.swing.tree.DefaultTreeModel

addTreeModelListener, asksAllowsChildren, fireTreeNodesChanged, fireTreeNodesInserted, fireTreeNodesRemoved, fireTreeStructureChanged, getChild, getChildCount, getIndexOfChild, getListeners, getPathToRoot, getPathToRoot, getRoot, getTreeModelListeners, insertNodeInto, isLeaf, nodeChanged, nodesChanged, nodeStructureChanged, nodesWereInserted, nodesWereRemoved, reload, reload, removeNodeFromParent, removeTreeModelListener, setAsksAllowsChildren, setRoot, valueForPathChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

ValuesTreeModel

public ValuesTreeModel(QDataSet ds)

ValuesTreeModel

public ValuesTreeModel(java.lang.String prefix,
                       QDataSet ds)

Parameters:

prefix - String to prefix the root label.

ds - the dataset source of the metadata.

Method Detail

valuesTreeNode2

public static javax.swing.tree.TreeNode valuesTreeNode2(java.lang.String prefix,
                                                        javax.swing.tree.TreeNode parent,
                                                        QDataSet ds)

The valuesTreeNode implementation that uses MutableTreeNodes cannot scale to very large datasets, since all nodes are created immediately. This implementation only queries the dataset as children are opened, and should eventually allow for exploration of any dataset. This is not used right now in the metadata tab of Autoplot because the root node of the tree is a MutableTreeNode and all children must therefore be MutableTreeNodes.

Parameters:

prefix - string prefix, a number of spaces to indent

parent - the parent node

ds - the dataset source of the values.

Returns:

the tree node

valuesTreeNode

public static javax.swing.tree.MutableTreeNode valuesTreeNode(java.lang.String prefix,
                                                              javax.swing.tree.MutableTreeNode aroot,
                                                              QDataSet ds,
                                                              int sizeLimit)

return a tree node for the values of a dataset.

Parameters:

prefix - prefix added to the each node, e.g. "value("

aroot - the parent to which the nodes are added.

ds - the dataset to represent.

sizeLimit - the number of nodes to represent, e.g. 20, and ellipses (...) will represent the values not shown.

Returns:

the node (aroot) is returned.