/*
* Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.querydsl.sql;
import java.sql.Types;
import com.querydsl.core.types.Ops;
/**
* {@code HSQLDBTemplates} is an SQL dialect for HSQLDB
*
* @author tiwe
*
*/
public class HSQLDBTemplates extends SQLTemplates {
@SuppressWarnings("FieldNameHidesFieldInSuperclass") //Intentional
public static final HSQLDBTemplates DEFAULT = new HSQLDBTemplates();
public static Builder builder() {
return new Builder() {
@Override
protected SQLTemplates build(char escape, boolean quote) {
return new HSQLDBTemplates(escape, quote);
}
};
}
public HSQLDBTemplates() {
this('\\', false);
}
public HSQLDBTemplates(boolean quote) {
this('\\', quote);
}
public HSQLDBTemplates(char escape, boolean quote) {
super(Keywords.HSQLDB, "\"", escape, quote, false);
setLimitRequired(true);
setAutoIncrement(" identity");
setDefaultValues("\ndefault values");
setFunctionJoinsWrapped(true);
setUnionsWrapped(false);
setPrecedence(Precedence.ARITH_HIGH, Ops.CONCAT);
setPrecedence(Precedence.ARITH_LOW + 1, Ops.NOT);
setPrecedence(Precedence.COMPARISON, Ops.EQ, Ops.EQ_IGNORE_CASE, Ops.NE);
setPrecedence(Precedence.COMPARISON + 1, Ops.IS_NULL, Ops.IS_NOT_NULL, Ops.LIKE, Ops.LIKE_ESCAPE, Ops.BETWEEN,
Ops.IN, Ops.NOT_IN, Ops.EXISTS);
setPrecedence(Precedence.COMPARISON + 1, OTHER_LIKE_CASES);
add(Ops.TRIM, "trim(both from {0})");
add(Ops.NEGATE, "{0} * -1", Precedence.ARITH_HIGH);
add(SQLOps.NEXTVAL, "next value for {0s}");
add(Ops.MathOps.POWER, "power({0},{1s})");
add(Ops.MathOps.ROUND, "round({0},0)");
add(Ops.MathOps.LN, "log({0})");
add(Ops.MathOps.LOG, "(log({0}) / log({1}))");
add(Ops.MathOps.COSH, "(exp({0}) + exp({0*'-1'})) / 2");
add(Ops.MathOps.COTH, "(exp({0*'2'}) + 1) / (exp({0*'2'}) - 1)");
add(Ops.MathOps.SINH, "(exp({0}) - exp({0*'-1'})) / 2");
add(Ops.MathOps.TANH, "(exp({0*'2'}) - 1) / (exp({0*'2'}) + 1)");
add(Ops.DateTimeOps.WEEK, "extract(week_of_year from {0})");
add(Ops.DateTimeOps.YEAR_WEEK, "extract(year from {0}) * 100 + extract(week_of_year from {0})", Precedence.ARITH_LOW);
add(Ops.DateTimeOps.ADD_YEARS, "dateadd('yy', {1s}, {0})");
add(Ops.DateTimeOps.ADD_MONTHS, "dateadd('mm', {1s}, {0})");
add(Ops.DateTimeOps.ADD_WEEKS, "dateadd('week', {1s}, {0})");
add(Ops.DateTimeOps.ADD_DAYS, "dateadd('dd', {1s}, {0})");
add(Ops.DateTimeOps.ADD_HOURS, "dateadd('hh', {1s}, {0})");
add(Ops.DateTimeOps.ADD_MINUTES, "dateadd('mi', {1s}, {0})");
add(Ops.DateTimeOps.ADD_SECONDS, "dateadd('ss', {1s}, {0})");
add(Ops.DateTimeOps.DIFF_YEARS, "datediff('yy', {0}, {1})");
add(Ops.DateTimeOps.DIFF_MONTHS, "datediff('mm', {0}, {1})");
add(Ops.DateTimeOps.DIFF_WEEKS, "trunc(datediff('dd', {0}, {1}) / 7)");
add(Ops.DateTimeOps.DIFF_DAYS, "datediff('dd', {0}, {1})");
add(Ops.DateTimeOps.DIFF_HOURS, "datediff('hh', {0}, {1})");
add(Ops.DateTimeOps.DIFF_MINUTES, "datediff('mi', {0}, {1})");
add(Ops.DateTimeOps.DIFF_SECONDS, "datediff('ss', {0}, {1})");
add(Ops.DateTimeOps.TRUNC_YEAR, "trunc({0},'YY')");
add(Ops.DateTimeOps.TRUNC_MONTH, "trunc({0},'MM')");
add(Ops.DateTimeOps.TRUNC_WEEK, "trunc({0},'WW')");
add(Ops.DateTimeOps.TRUNC_DAY, "trunc({0},'DD')");
add(Ops.DateTimeOps.TRUNC_HOUR, "trunc({0},'HH')");
add(Ops.DateTimeOps.TRUNC_MINUTE, "trunc({0},'MI')");
add(Ops.DateTimeOps.TRUNC_SECOND, "trunc({0},'SS')");
add(Ops.DateTimeOps.DATE, "convert({0}, date)");
add(SQLOps.GROUP_CONCAT2, "group_concat({0} separator '{1s}')");
addTypeNameToCode("character", Types.CHAR, true);
addTypeNameToCode("float", Types.DOUBLE, true);
addTypeNameToCode("real", Types.DOUBLE);
addTypeNameToCode("nvarchar", Types.VARCHAR);
}
@Override
public String getCastTypeNameForCode(int code) {
if (code == Types.VARCHAR) {
return "varchar(10)";
} else {
return super.getCastTypeNameForCode(code);
}
}
}