public class CustomMapEditor
extends java.beans.PropertyEditorSupport
Map
,
SortedMap
Constructor and Description |
---|
CustomMapEditor(java.lang.Class<? extends java.util.Map> mapType)
Create a new CustomMapEditor for the given target type,
keeping an incoming
null as-is. |
CustomMapEditor(java.lang.Class<? extends java.util.Map> mapType,
boolean nullAsEmptyMap)
Create a new CustomMapEditor for the given target type.
|
Modifier and Type | Method and Description |
---|---|
protected boolean |
alwaysCreateNewMap()
Return whether to always create a new Map,
even if the type of the passed-in Map already matches.
|
protected java.lang.Object |
convertKey(java.lang.Object key)
Hook to convert each encountered Map key.
|
protected java.lang.Object |
convertValue(java.lang.Object value)
Hook to convert each encountered Map value.
|
protected java.util.Map<java.lang.Object,java.lang.Object> |
createMap(java.lang.Class<? extends java.util.Map> mapType,
int initialCapacity)
Create a Map of the given type, with the given
initial capacity (if supported by the Map type).
|
java.lang.String |
getAsText()
This implementation returns
null to indicate that
there is no appropriate text representation. |
void |
setAsText(java.lang.String text)
Convert the given text value to a Map with a single element.
|
void |
setValue(java.lang.Object value)
Convert the given value to a Map of the target type.
|
public CustomMapEditor(java.lang.Class<? extends java.util.Map> mapType)
null
as-is.mapType
- the target type, which needs to be a
sub-interface of Map or a concrete Map classMap
,
HashMap
,
TreeMap
,
LinkedHashMap
public CustomMapEditor(java.lang.Class<? extends java.util.Map> mapType, boolean nullAsEmptyMap)
If the incoming value is of the given type, it will be used as-is. If it is a different Map type or an array, it will be converted to a default implementation of the given Map type. If the value is anything else, a target Map with that single value will be created.
The default Map implementations are: TreeMap for SortedMap, and LinkedHashMap for Map.
mapType
- the target type, which needs to be a
sub-interface of Map or a concrete Map classnullAsEmptyMap
- ap whether to convert an incoming null
value to an empty Map (of the appropriate type)Map
,
TreeMap
,
LinkedHashMap
public void setAsText(java.lang.String text) throws java.lang.IllegalArgumentException
setAsText
in interface java.beans.PropertyEditor
setAsText
in class java.beans.PropertyEditorSupport
java.lang.IllegalArgumentException
public void setValue(java.lang.Object value)
setValue
in interface java.beans.PropertyEditor
setValue
in class java.beans.PropertyEditorSupport
protected java.util.Map<java.lang.Object,java.lang.Object> createMap(java.lang.Class<? extends java.util.Map> mapType, int initialCapacity)
mapType
- a sub-interface of MapinitialCapacity
- the initial capacityprotected boolean alwaysCreateNewMap()
Default is "false"; can be overridden to enforce creation of a new Map, for example to convert elements in any case.
protected java.lang.Object convertKey(java.lang.Object key)
Can be overridden to perform conversion of certain keys, for example from String to Integer.
Only called if actually creating a new Map!
This is by default not the case if the type of the passed-in Map
already matches. Override alwaysCreateNewMap()
to
enforce creating a new Map in every case.
key
- the source keyalwaysCreateNewMap()
protected java.lang.Object convertValue(java.lang.Object value)
Can be overridden to perform conversion of certain values, for example from String to Integer.
Only called if actually creating a new Map!
This is by default not the case if the type of the passed-in Map
already matches. Override alwaysCreateNewMap()
to
enforce creating a new Map in every case.
value
- the source valuealwaysCreateNewMap()
public java.lang.String getAsText()
null
to indicate that
there is no appropriate text representation.getAsText
in interface java.beans.PropertyEditor
getAsText
in class java.beans.PropertyEditorSupport