org.hibernate.dialect.function.SQLFunctionRegistry Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
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*/
package org.hibernate.dialect.function;
import java.util.HashMap;
import java.util.Map;
import org.hibernate.dialect.Dialect;
public class SQLFunctionRegistry {
private final Dialect dialect;
private final Map userFunctions;
public SQLFunctionRegistry(Dialect dialect, Map userFunctions) {
this.dialect = dialect;
this.userFunctions = new HashMap();
this.userFunctions.putAll( userFunctions );
}
public SQLFunction findSQLFunction(String functionName) {
String name = functionName.toLowerCase();
SQLFunction userFunction = userFunctions.get( name );
return userFunction != null
? userFunction
: (SQLFunction) dialect.getFunctions().get( name );
}
public boolean hasFunction(String functionName) {
String name = functionName.toLowerCase();
return userFunctions.containsKey( name ) || dialect.getFunctions().containsKey( name );
}
}