Package de.esoco.data.element

Klasse IntegerDataElement

java.lang.Object

de.esoco.lib.property.AbstractStringProperties

de.esoco.lib.property.StringProperties

de.esoco.data.element.DataElement<Integer>

de.esoco.data.element.IntegerDataElement

Alle implementierten Schnittstellen:

de.esoco.lib.property.HasProperties, de.esoco.lib.property.MutableProperties, Serializable

public class IntegerDataElement
extends DataElement<Integer>

A data element implementation for integer values.

Siehe auch:

• Serialisierte Form

Verschachtelte Klassen - Übersicht

Von Klasse geerbte verschachtelte Klassen/Schnittstellen de.esoco.data.element.DataElement

DataElement.CopyMode, DataElement.Flag

Feldübersicht

Von Klasse geerbte Felder de.esoco.data.element.DataElement

ALLOWED_VALUES_CHANGED, ANONYMOUS_ELEMENT_PREFIX, DISPLAY_FLAGS, HIDDEN_URL, INPUT_FLAGS, INTERACTION_URL, ITEM_ALL_RESOURCE, ITEM_NEW_RESOURCE, ITEM_RESOURCE_PREFIX, PATH_SEPARATOR_CHAR, SERVER_PROPERTIES

Konstruktorübersicht

Konstruktoren

Modifizierer	Konstruktor	Beschreibung
protected	IntegerDataElement()	Default constructor for serialization.
	IntegerDataElement(String name, int value)	Creates a new read-only instance with a certain name and value.
	IntegerDataElement(String name, int value, Validator<? super Integer> validator, Set<DataElement.Flag> flags)	Creates a new instance with a certain initial value and validator.
	IntegerDataElement(String name, Integer value, Validator<? super Integer> validator, Set<DataElement.Flag> flags)	Creates a new instance with a certain initial value and validator.

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
IntegerDataElement	copy(DataElement.CopyMode mode, de.esoco.lib.property.PropertyName<?>... copyProperties)	Returns a copy of this data element that contains all or a subset of it's current state.
final Integer	getValue()	---------------------------------------------------------------- /** Returns the value of this element.
protected IntegerDataElement	newInstance()	Returns a new instance of the respective data element sub-type on which it is invoked.
void	setStringValue(String value)	Sets a string value.
protected void	updateValue(Integer newValue)	Updates the element value.

Von Klasse geerbte Methoden de.esoco.data.element.DataElement

checkImmutable, checkValidValue, copyAttributes, copyValue, createItemName, createItemResource, createResourceId, equals, getAllowedValues, getElementValidator, getName, getParent, getPath, getResourceId, getRoot, getSimpleName, getValidator, getValueHashCode, hasEqualValueAs, hashCode, init, isImmutable, isModified, isOptional, isSelected, isValidValue, markAsChanged, readFrom, removeProperty, setModified, setProperty, setSelected, setValidator, setValue, toDebugString, toString, valuesEqual, writeTo

Von Klasse geerbte Methoden de.esoco.lib.property.StringProperties

clearFlag, clearProperties, setFlag, setProperties, setProperty, setProperty

Von Klasse geerbte Methoden de.esoco.lib.property.AbstractStringProperties

convertCollection, convertMap, convertValue, ensurePropertyMapExists, findValue, getIntProperty, getProperty, getPropertyCount, getPropertyMap, getPropertyNames, hasEqualProperties, hasFlag, hasProperty, parseCollection, parseMap, parseValue, setPropertyMap

Von Klasse geerbte Methoden java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Von Schnittstelle geerbte Methoden de.esoco.lib.property.HasProperties

getIntProperty, getProperty, getPropertyCount, getPropertyNames, hasFlag, hasProperty

Konstruktordetails

IntegerDataElement

public IntegerDataElement(String name,
 int value)

Creates a new read-only instance with a certain name and value.

Parameter:

name - The name of this element

value - The initial value

IntegerDataElement

public IntegerDataElement(String name,
 int value,
 Validator<? super Integer> validator,
 Set<DataElement.Flag> flags)

Creates a new instance with a certain initial value and validator.

Parameter:

name - The name of this element

value - The initial value

validator - The validator for the value or NULL for none

flags - The optional flags for this data element

IntegerDataElement

public IntegerDataElement(String name,
 Integer value,
 Validator<? super Integer> validator,
 Set<DataElement.Flag> flags)

Creates a new instance with a certain initial value and validator.

Parameter:

name - The name of this element

value - The initial value

validator - The validator for the value or NULL for none

flags - The optional flags for this data element

IntegerDataElement

protected IntegerDataElement()

Default constructor for serialization.

Methodendetails

copy

public IntegerDataElement copy(DataElement.CopyMode mode,
 de.esoco.lib.property.PropertyName<?>... copyProperties)

Returns a copy of this data element that contains all or a subset of it's current state. Always copied are the name and flags. Never copied is the parent reference because upon copying typically a reference to a copied parent needs to be set. The further data the copy contains depends on the copy mode:

• DataElement.CopyMode.FULL: The copy contains all data (except the parent reference).
• DataElement.CopyMode.FLAT: like DataElement.CopyMode.FULL but without sub-ordinate data elements.
• DataElement.CopyMode.PROPERTIES: The copy contains only the properties but not the element value and attributes.
• DataElement.CopyMode.PLACEHOLDER: The copy contains only the element name to serve as a placeholder.

The copy instance is created by invoking DataElement.newInstance() which has the recommendation to overwrite the return type to the concrete subtype to prevent the need for casting by the invoking code. For the same reason it is recommended that subclasses also override this method with the concrete return type and cast the result of super.copy() to that type.

Setzt außer Kraft:

copy in Klasse DataElement<Integer>

Parameter:

mode - The copy mode

copyProperties - An optional list of properties to copy. If not provided all properties will be copied (unless the mode is DataElement.CopyMode.PLACEHOLDER)

Gibt zurück:

The copied instance

getValue

public final Integer getValue()

---------------------------------------------------------------- /** Returns the value of this element. Each subclass must implement this method separately because some environments (like GWT) require serializable objects to use specific types for serializable fields. Therefore it is not possible to store a generic Object value in the base class.

Angegeben von:

getValue in Klasse DataElement<Integer>

Gibt zurück:

The element value

setStringValue

public void setStringValue(String value)

Sets a string value. This method must be overridden by subclasses that want to support the setting of string values in parallel to their native datatype. The default implementation always throws a runtime exception.

Setzt außer Kraft:

setStringValue in Klasse DataElement<Integer>

Parameter:

value - The new string value

newInstance

protected IntegerDataElement newInstance()

Returns a new instance of the respective data element sub-type on which it is invoked. This is needed for GWT which doesn't support reflection. Used by DataElement.copy(CopyMode, PropertyName...) for cloning an instance. Implementations should overwrite the return type with their concrete type to prevent the need for casting by the invoking code.

Angegeben von:

newInstance in Klasse DataElement<Integer>

Gibt zurück:

The new instance

updateValue

protected void updateValue(Integer newValue)

Updates the element value. Will be invoked by DataElement.setValue(Object) to store a new value after validation. If a subclass wants to reject certain values it should do so in the DataElement.isValidValue(Validator, Object) method. Subclasses that are always immutable should implement an assertion because if the element has been initialized correctly (validator = NULL) this method should then be reached.

Angegeben von:

updateValue in Klasse DataElement<Integer>

Parameter:

newValue - The new value for this element