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public interface ConversionService
A service interface for type conversion. This is the entry point into the convert system.
Call convert(Object, Class) to perform a thread-safe type conversion using this system.
| Method Summary | ||
|---|---|---|
boolean |
canConvert(java.lang.Class<?> sourceType,
java.lang.Class<?> targetType)
Return true if objects of sourceType can be converted to the targetType. |
|
boolean |
canConvert(TypeDescriptor sourceType,
TypeDescriptor targetType)
Return true if objects of sourceType can be converted to the targetType. |
|
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convert(java.lang.Object source,
java.lang.Class<T> targetType)
Convert the given source to the specified targetType. |
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java.lang.Object |
convert(java.lang.Object source,
TypeDescriptor sourceType,
TypeDescriptor targetType)
Convert the given source to the specified targetType. |
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| Method Detail |
|---|
boolean canConvert(java.lang.Class<?> sourceType,
java.lang.Class<?> targetType)
true if objects of sourceType can be converted to the targetType.
If this method returns true, it means convert(Object, Class) is capable
of converting an instance of sourceType to targetType.
Special note on collections, arrays, and maps types:
For conversion between collection, array, and map types, this method will return true
even though a convert invocation may still generate a ConversionException if the
underlying elements are not convertible. Callers are expected to handle this exceptional case
when working with collections and maps.
sourceType - the source type to convert from (may be null if source is null)targetType - the target type to convert to (required)
true if a conversion can be performed, false if not
java.lang.IllegalArgumentException - if targetType is null
boolean canConvert(TypeDescriptor sourceType,
TypeDescriptor targetType)
true if objects of sourceType can be converted to the targetType.
The TypeDescriptors provide additional context about the source and target locations
where conversion would occur, often object fields or property locations.
If this method returns true, it means convert(Object, TypeDescriptor, TypeDescriptor)
is capable of converting an instance of sourceType to targetType.
Special note on collections, arrays, and maps types:
For conversion between collection, array, and map types, this method will return true
even though a convert invocation may still generate a ConversionException if the
underlying elements are not convertible. Callers are expected to handle this exceptional case
when working with collections and maps.
sourceType - context about the source type to convert from
(may be null if source is null)targetType - context about the target type to convert to (required)
true if a conversion can be performed between the source and target types,
false if not
java.lang.IllegalArgumentException - if targetType is null
<T> T convert(java.lang.Object source,
java.lang.Class<T> targetType)
source to the specified targetType.
source - the source object to convert (may be null)targetType - the target type to convert to (required)
ConversionException - if a conversion exception occurred
java.lang.IllegalArgumentException - if targetType is null
java.lang.Object convert(java.lang.Object source,
TypeDescriptor sourceType,
TypeDescriptor targetType)
source to the specified targetType.
The TypeDescriptors provide additional context about the source and target locations
where conversion will occur, often object fields or property locations.
source - the source object to convert (may be null)sourceType - context about the source type to convert from
(may be null if source is null)targetType - context about the target type to convert to (required)
targetType
ConversionException - if a conversion exception occurred
java.lang.IllegalArgumentException - if targetType is null,
or sourceType is null but source is not null
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