public class BlobTypeDescriptor extends AbstractTypeDescriptor<Blob>
Blob
handling.
Note, blobs
really are mutable (their internal state can in fact be mutated). We simply
treat them as immutable because we cannot properly check them for changes nor deep copy them.Modifier and Type | Class and Description |
---|---|
static class |
BlobTypeDescriptor.BlobMutabilityPlan |
Modifier and Type | Field and Description |
---|---|
static BlobTypeDescriptor |
INSTANCE |
Constructor and Description |
---|
BlobTypeDescriptor() |
Modifier and Type | Method and Description |
---|---|
boolean |
areEqual(Blob one,
Blob another)
Determine if two instances are equal
|
int |
extractHashCode(Blob value)
Extract a proper hash code for this value.
|
Blob |
fromString(String string) |
Comparator<Blob> |
getComparator()
Retrieve the natural comparator for this type.
|
String |
toString(Blob value) |
<X> X |
unwrap(Blob value,
Class<X> type,
WrapperOptions options)
Unwrap an instance of our handled Java type into the requested type.
|
<X> Blob |
wrap(X value,
WrapperOptions options)
Wrap a value as our handled Java type.
|
extractLoggableRepresentation, getJavaTypeClass, getMutabilityPlan, unknownUnwrap, unknownWrap
public static final BlobTypeDescriptor INSTANCE
public Comparator<Blob> getComparator()
JavaTypeDescriptor
getComparator
in interface JavaTypeDescriptor<Blob>
getComparator
in class AbstractTypeDescriptor<Blob>
public int extractHashCode(Blob value)
JavaTypeDescriptor
extractHashCode
in interface JavaTypeDescriptor<Blob>
extractHashCode
in class AbstractTypeDescriptor<Blob>
value
- The value for which to extract a hash code.public boolean areEqual(Blob one, Blob another)
JavaTypeDescriptor
areEqual
in interface JavaTypeDescriptor<Blob>
areEqual
in class AbstractTypeDescriptor<Blob>
one
- One instanceanother
- The other instancepublic <X> X unwrap(Blob value, Class<X> type, WrapperOptions options)
JavaTypeDescriptor
JavaTypeDescriptor<Integer>
and we are asked to unwrap
the Integer value
as a Long
we would return something like
Long.valueOf( value.longValue() )
.
Intended use is during PreparedStatement
binding.X
- The conversion type.value
- The value to unwraptype
- The type as which to unwrapoptions
- The optionspublic <X> Blob wrap(X value, WrapperOptions options)
JavaTypeDescriptor
ResultSet
extraction.X
- The conversion type.value
- The value to wrap.options
- The optionsCopyright © 2017 JBoss by Red Hat. All rights reserved.