org.hibernate.tool.schema.JdbcMetadaAccessStrategy Maven / Gradle / Ivy
/*
* 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.tool.schema;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.internal.util.StringHelper;
/**
* @author Andrea Boriero
*/
public enum JdbcMetadaAccessStrategy {
/**
* The {@link org.hibernate.tool.schema.spi.SchemaMigrator} and {@link org.hibernate.tool.schema.spi.SchemaValidator}
* execute one {@link java.sql.DatabaseMetaData#getTables(String, String, String, String[])} call for each
* {@link javax.persistence.Entity} in order to determine if a corresponding database table exists.
*/
INDIVIDUALLY( "individually" ),
/**
* The {@link org.hibernate.tool.schema.spi.SchemaMigrator} and {@link org.hibernate.tool.schema.spi.SchemaValidator}
* execute a single {@link java.sql.DatabaseMetaData#getTables(String, String, String, String[])} call
* to retrieve all the database table in order to determine all the {@link javax.persistence.Entity} have a mapped database tables.
*/
GROUPED( "grouped" );
private final String strategy;
JdbcMetadaAccessStrategy(String strategy) {
this.strategy = strategy;
}
@Override
public String toString() {
return strategy;
}
public static JdbcMetadaAccessStrategy interpretHbm2ddlSetting(Object value) {
if(value == null){
return GROUPED;
}
String name = value.toString();
if ( StringHelper.isEmpty( name ) || GROUPED.strategy.equals( name ) ) {
return GROUPED;
}
else if ( INDIVIDUALLY.strategy.equals( name ) ) {
return INDIVIDUALLY;
}
else {
throw new IllegalArgumentException( "Unrecognized `" + AvailableSettings.HBM2DDL_JDBC_METADATA_EXTRACTOR_STRATEGY + "` value : " + name );
}
}
}