org.hibernate.dialect.function.SQLFunctionRegistry Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC 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 Middleware LLC.
*
* 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.
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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 = (SQLFunction) userFunctions.get( name );
return userFunction!=null?userFunction:(SQLFunction) dialect.getFunctions().get(name); // TODO: lowercasing done here. Was done "at random" before; maybe not needed at all ?
}
public boolean hasFunction(String functionName) {
String name = functionName.toLowerCase();
boolean hasUserFunction = userFunctions.containsKey ( name );
return hasUserFunction || dialect.getFunctions().containsKey ( name ); // TODO: toLowerCase was not done before. Only used in Template.
}
}