/*
 * 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 <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.type.descriptor.sql;

import java.io.Serializable;

import org.hibernate.type.descriptor.ValueBinder;
import org.hibernate.type.descriptor.ValueExtractor;
import org.hibernate.type.descriptor.java.BasicJavaDescriptor;
import org.hibernate.type.descriptor.java.JavaTypeDescriptor;
import org.hibernate.type.spi.TypeConfiguration;

Descriptor for the SQL/JDBC side of a value mapping.

NOTE : Implementations should be registered with the SqlTypeDescriptor. The built-in Hibernate implementations register themselves on construction.
Author:Steve Ebersole
/** * Descriptor for the <tt>SQL</tt>/<tt>JDBC</tt> side of a value mapping. * <p/> * NOTE : Implementations should be registered with the {@link SqlTypeDescriptor}. The built-in Hibernate * implementations register themselves on construction. * * @author Steve Ebersole */
public interface SqlTypeDescriptor extends Serializable {
Return the JDBC type-code for the column mapped by this type.
Returns:typeCode The JDBC type-code
/** * Return the {@linkplain java.sql.Types JDBC type-code} for the column mapped by this type. * * @return typeCode The JDBC type-code */
int getSqlType();
Is this descriptor available for remapping?
See Also:
Returns:true indicates this descriptor can be remapped; otherwise, false
/** * Is this descriptor available for remapping? * * @return {@code true} indicates this descriptor can be remapped; otherwise, {@code false} * * @see org.hibernate.type.descriptor.WrapperOptions#remapSqlTypeDescriptor * @see org.hibernate.dialect.Dialect#remapSqlTypeDescriptor */
boolean canBeRemapped(); @SuppressWarnings("unchecked") default <T> BasicJavaDescriptor<T> getJdbcRecommendedJavaTypeMapping(TypeConfiguration typeConfiguration) { // match legacy behavior return (BasicJavaDescriptor<T>) typeConfiguration.getJavaTypeDescriptorRegistry().getDescriptor( JdbcTypeJavaClassMappings.INSTANCE.determineJavaClassForJdbcTypeCode( getSqlType() ) ); }
Get the binder (setting JDBC in-going parameter values) capable of handling values of the type described by the passed descriptor.
Params:
  • javaTypeDescriptor – The descriptor describing the types of Java values to be bound
Returns:The appropriate binder.
/** * Get the binder (setting JDBC in-going parameter values) capable of handling values of the type described by the * passed descriptor. * * @param javaTypeDescriptor The descriptor describing the types of Java values to be bound * * @return The appropriate binder. */
<X> ValueBinder<X> getBinder(JavaTypeDescriptor<X> javaTypeDescriptor);
Get the extractor (pulling out-going values from JDBC objects) capable of handling values of the type described by the passed descriptor.
Params:
  • javaTypeDescriptor – The descriptor describing the types of Java values to be extracted
Returns:The appropriate extractor
/** * Get the extractor (pulling out-going values from JDBC objects) capable of handling values of the type described * by the passed descriptor. * * @param javaTypeDescriptor The descriptor describing the types of Java values to be extracted * * @return The appropriate extractor */
<X> ValueExtractor<X> getExtractor(JavaTypeDescriptor<X> javaTypeDescriptor); }