Package com.webmethods.caf.faces.data.tree.object

Class TreeBuilder

java.lang.Object

com.webmethods.caf.faces.data.tree.object.TreeBuilder

public class TreeBuilder
extends Object

Helper class for building trees.

Constructor Summary

Constructors

Constructor	Description
TreeBuilder()

Method Summary

Modifier and Type	Method	Description
static List<INode>	buildFromChildIds(List<?> rows, String rowVariable, ValueExpression rowIdBinding, ValueExpression childIdsBinding)	Build a tree out a list of rows, where the tree structure is determined by child-ids bindings (ie each row contains a field with the ids of its children).
static List<INode>	buildFromChildIds(List<?> rows, String rowVariable, ValueBinding rowIdBinding, ValueBinding childIdsBinding)	Deprecated. use buildFromChildIds(List, String, ValueExpression, ValueExpression) instead
static List<INode>	buildFromParentIds(List<?> rows, String rowVariable, ValueExpression rowIdBinding, ValueExpression parentIdBinding)	Build a tree out a list of rows, where the tree structure is determined by parent-id bindings (ie each row contains a field with the id of its parent).
static List<INode>	buildFromParentIds(List<?> rows, String rowVariable, ValueBinding rowIdBinding, ValueBinding parentIdBinding)	Deprecated. use buildFromParentIds(List, String, ValueExpression, ValueExpression) instead

Methods inherited from class java.lang.Object

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

Constructor Details

TreeBuilder

public TreeBuilder()

Method Details

buildFromParentIds

@Deprecated
public static List<INode> buildFromParentIds(List<?> rows,
 String rowVariable,
 ValueBinding rowIdBinding,
 ValueBinding parentIdBinding)

Deprecated.

use buildFromParentIds(List, String, ValueExpression, ValueExpression) instead

Build a tree out a list of rows, where the tree structure is determined by parent-id bindings (ie each row contains a field with the id of its parent).

Type Parameters:

T -

Parameters:

rows - List of rows. This may be empty, but not null.

rowVariable - Row variable used in row-id and parent-id bindings. For example, if the row-id binding is #{row.id}, the row variable is "row".

rowIdBinding - Binding expression that calculates the row-id for the current row. This must return a unique string id for each row.

parentIdBinding - Binding expression that calculates the parent-id for the current row. This must return null for rows that represent roots, and a valid parent row-id for all other rows.

Returns:

List of INode roots of the tree. Never null; may be empty if original list of rows was empty.

buildFromParentIds

public static List<INode> buildFromParentIds(List<?> rows,
 String rowVariable,
 ValueExpression rowIdBinding,
 ValueExpression parentIdBinding)

Build a tree out a list of rows, where the tree structure is determined by parent-id bindings (ie each row contains a field with the id of its parent).

Type Parameters:

T -

Parameters:

rows - List of rows. This may be empty, but not null.

rowVariable - Row variable used in row-id and parent-id bindings. For example, if the row-id binding is #{row.id}, the row variable is "row".

rowIdBinding - Binding expression that calculates the row-id for the current row. This must return a unique string id for each row.

parentIdBinding - Binding expression that calculates the parent-id for the current row. This must return null for rows that represent roots, and a valid parent row-id for all other rows.

Returns:

List of INode roots of the tree. Never null; may be empty if original list of rows was empty.

buildFromChildIds

@Deprecated
public static List<INode> buildFromChildIds(List<?> rows,
 String rowVariable,
 ValueBinding rowIdBinding,
 ValueBinding childIdsBinding)

Deprecated.

use buildFromChildIds(List, String, ValueExpression, ValueExpression) instead

Build a tree out a list of rows, where the tree structure is determined by child-ids bindings (ie each row contains a field with the ids of its children).

Type Parameters:

T -

Parameters:

rows - List of rows. This may be empty, but not null.

rowVariable - Row variable used in row-id and child-ids bindings. For example, if the row-id binding is #{row.id}, the row variable is "row".

rowIdBinding - Binding expression that calculates the row-id for the current row. This must return a unique string id for each row.

childIdsBinding - Binding expression that calculates the child-ids for the current row. This must return a comma-separated String of row-ids, a Collection of row-ids, an array of String row-ids, or null. It may return an empty string, collection, or array.

Returns:

List of INode roots of the tree. Never null; may be empty if original list of rows was empty.

buildFromChildIds

public static List<INode> buildFromChildIds(List<?> rows,
 String rowVariable,
 ValueExpression rowIdBinding,
 ValueExpression childIdsBinding)

Build a tree out a list of rows, where the tree structure is determined by child-ids bindings (ie each row contains a field with the ids of its children).

Type Parameters:

T -

Parameters:

rows - List of rows. This may be empty, but not null.

rowVariable - Row variable used in row-id and child-ids bindings. For example, if the row-id binding is #{row.id}, the row variable is "row".

rowIdBinding - Binding expression that calculates the row-id for the current row. This must return a unique string id for each row.

childIdsBinding - Binding expression that calculates the child-ids for the current row. This must return a comma-separated String of row-ids, a Collection of row-ids, an array of String row-ids, or null. It may return an empty string, collection, or array.

Returns:

List of INode roots of the tree. Never null; may be empty if original list of rows was empty.