org.hibernate.type.descriptor.java.CharacterArrayTypeDescriptor Maven / Gradle / Ivy
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JPMS Module-Info's for a few of the Jakarta Libraries just until they add them in themselves
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.type.descriptor.java;
import java.io.Reader;
import java.io.StringReader;
import java.sql.Clob;
import java.util.Arrays;
import java.util.Comparator;
import org.hibernate.engine.jdbc.CharacterStream;
import org.hibernate.engine.jdbc.internal.CharacterStreamImpl;
import org.hibernate.type.descriptor.WrapperOptions;
/**
* Descriptor for {@code Character[]} handling.
*
* @author Steve Ebersole
*/
public class CharacterArrayTypeDescriptor extends AbstractTypeDescriptor {
public static final CharacterArrayTypeDescriptor INSTANCE = new CharacterArrayTypeDescriptor();
@SuppressWarnings({ "unchecked" })
public CharacterArrayTypeDescriptor() {
super( Character[].class, ArrayMutabilityPlan.INSTANCE );
}
@Override
public String toString(Character[] value) {
return new String( unwrapChars( value ) );
}
@Override
public Character[] fromString(String string) {
return wrapChars( string.toCharArray() );
}
@Override
public boolean areEqual(Character[] one, Character[] another) {
return one == another
|| ( one != null && another != null && Arrays.equals( one, another ) );
}
@Override
public int extractHashCode(Character[] chars) {
int hashCode = 1;
for ( Character aChar : chars ) {
hashCode = 31 * hashCode + aChar;
}
return hashCode;
}
@Override
@SuppressWarnings({ "unchecked" })
public Comparator getComparator() {
return IncomparableComparator.INSTANCE;
}
@SuppressWarnings({ "unchecked" })
@Override
public X unwrap(Character[] value, Class type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Character[].class.isAssignableFrom( type ) ) {
return (X) value;
}
if ( String.class.isAssignableFrom( type ) ) {
return (X) new String( unwrapChars( value ) );
}
if ( Clob.class.isAssignableFrom( type ) ) {
return (X) options.getLobCreator().createClob( new String( unwrapChars( value ) ) );
}
if ( Reader.class.isAssignableFrom( type ) ) {
return (X) new StringReader( new String( unwrapChars( value ) ) );
}
if ( CharacterStream.class.isAssignableFrom( type ) ) {
return (X) new CharacterStreamImpl( new String( unwrapChars( value ) ) );
}
throw unknownUnwrap( type );
}
@Override
public Character[] wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Character[].class.isInstance( value ) ) {
return (Character[]) value;
}
if ( String.class.isInstance( value ) ) {
return wrapChars( ( (String) value ).toCharArray() );
}
if ( Clob.class.isInstance( value ) ) {
return wrapChars( DataHelper.extractString( ( (Clob) value ) ).toCharArray() );
}
if ( Reader.class.isInstance( value ) ) {
return wrapChars( DataHelper.extractString( (Reader) value ).toCharArray() );
}
throw unknownWrap( value.getClass() );
}
private Character[] wrapChars(char[] chars) {
if ( chars == null ) {
return null;
}
final Character[] result = new Character[chars.length];
for ( int i = 0; i < chars.length; i++ ) {
result[i] = chars[i];
}
return result;
}
private char[] unwrapChars(Character[] chars) {
if ( chars == null ) {
return null;
}
final char[] result = new char[chars.length];
for ( int i = 0; i < chars.length; i++ ) {
result[i] = chars[i];
}
return result;
}
}