org.loom.binding
Class Node

java.lang.Object
  org.loom.binding.Node

Direct Known Subclasses:

AbstractCollectionNode, MapNode, SetNode, SimpleNode

public abstract class Node
extends java.lang.Object

A nesting level in a property path

Constructor Summary

Node()

Method Summary

void	applyValidation(java.lang.Object container, ValidationRequest request) Applies validation to this node.
protected abstract void	applyValidationImpl(java.lang.Object container, ValidationRequest request) Applies a validation.
Node	getChild()
protected java.lang.String	getIndex(java.lang.String nodeName) Gets the index part of a node.
protected int	getIndexAsInt(java.lang.String nodeName) Gets the index as Integer If there is no index, return -1
java.lang.Class<?>	getNextNodeClass()
java.lang.String	getPropertyName()
PropertyWrapper	getPropertyWrapper()
abstract java.lang.Object	getValue(java.lang.Object container, java.lang.String[] propertyPath, int index) Gets the value of the property at the end of this chain
boolean	isLeaf()
void	setChild(Node child)
void	setPropertyWrapper(PropertyWrapper wrapper)
abstract void	setValue(java.lang.Object container, java.lang.Object value, java.lang.String[] propertyPath, int index) Sets a value to the property at the end of this chain

Methods inherited from class java.lang.Object

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

Constructor Detail

Node

public Node()

Method Detail

setValue

public abstract void setValue(java.lang.Object container,
                              java.lang.Object value,
                              java.lang.String[] propertyPath,
                              int index)
                       throws MalformedPropertyPathException

Sets a value to the property at the end of this chain

Parameters:

container - The current property node (starts at the root of the chain)

value - the value to assign

index - the current index inside the property chain

Throws:

MalformedPropertyPathException

getValue

public abstract java.lang.Object getValue(java.lang.Object container,
                                          java.lang.String[] propertyPath,
                                          int index)
                                   throws MalformedPropertyPathException

Gets the value of the property at the end of this chain

Parameters:

container - The current property node (starts at the root of the chain)

propertyPath - the full path to the requested property

index - the current index inside the property chain

Returns:

the value at the end of this chain, may be null

Throws:

MalformedPropertyPathException

getNextNodeClass

public final java.lang.Class<?> getNextNodeClass()

Returns:

the container class for any child nodes. For simple nodes this would be the same as the property class, but collections will return the item class and Maps the value class.

getChild

public Node getChild()

setChild

public void setChild(Node child)

getPropertyName

public java.lang.String getPropertyName()

setPropertyWrapper

public void setPropertyWrapper(PropertyWrapper wrapper)

Parameters:

wrapper - the propertyWrapper of this field.

isLeaf

public boolean isLeaf()

Returns:

true if this node is a leaf node, the last node in the property chain

getIndex

protected java.lang.String getIndex(java.lang.String nodeName)

Gets the index part of a node. "foo[index]" returns the index as String. Can be used by Maps, arrays and Lists.

Returns:

the index of this node, null if none

getIndexAsInt

protected int getIndexAsInt(java.lang.String nodeName)

Gets the index as Integer If there is no index, return -1

applyValidation

public void applyValidation(java.lang.Object container,
                            ValidationRequest request)

Applies validation to this node. Handles the null container case (where an intermediate node is null) and propagates the call to applyValidationImpl().

applyValidationImpl

protected abstract void applyValidationImpl(java.lang.Object container,
                                            ValidationRequest request)

Applies a validation. If there is more than one value involved in this validation (i.e. lists, maps, or arrays), validates every node.

Parameters:

container - the container where to apply this validation. It cannot be null.

request - the validation to be performed

getPropertyWrapper

public PropertyWrapper getPropertyWrapper()