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org.jooq.impl.BitCount Maven / Gradle / Ivy
/**
* Copyright (c) 2009-2014, Data Geekery GmbH (http://www.datageekery.com)
* All rights reserved.
*
* This work is dual-licensed
* - under the Apache Software License 2.0 (the "ASL")
* - under the jOOQ License and Maintenance Agreement (the "jOOQ License")
* =============================================================================
* You may choose which license applies to you:
*
* - If you're using this work with Open Source databases, you may choose
* either ASL or jOOQ License.
* - If you're using this work with at least one commercial database, you must
* choose jOOQ License
*
* For more information, please visit http://www.jooq.org/licenses
*
* Apache Software License 2.0:
* -----------------------------------------------------------------------------
* 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.
*
* jOOQ License and Maintenance Agreement:
* -----------------------------------------------------------------------------
* Data Geekery grants the Customer the non-exclusive, timely limited and
* non-transferable license to install and use the Software under the terms of
* the jOOQ License and Maintenance Agreement.
*
* This library is distributed with a LIMITED WARRANTY. See the jOOQ License
* and Maintenance Agreement for more details: http://www.jooq.org/licensing
*/
package org.jooq.impl;
import static org.jooq.impl.DSL.function;
import static org.jooq.impl.DSL.inline;
import org.jooq.Configuration;
import org.jooq.Field;
/**
* @author Lukas Eder
*/
class BitCount extends AbstractFunction {
/**
* Generated UID
*/
private static final long serialVersionUID = 7624782102883057433L;
BitCount(Field field) {
super("bit_count", SQLDataType.INTEGER, field);
}
@Override
final Field getFunction0(Configuration configuration) {
final Field field = getArguments()[0];
switch (configuration.dialect()) {
case MARIADB:
case MYSQL:
return function("bit_count", getDataType(), getArguments());
// Warning, some severe madness lies ahead. Better solutions very welcome!
// See also http://stackoverflow.com/questions/7946349/how-to-simulate-the-mysql-bit-count-function-in-sybase-sql-anywhere
default: {
if (field.getType() == Byte.class) {
@SuppressWarnings("unchecked")
Field f = (Field) field;
byte i = 0;
return DSL.bitAnd(f, inline((byte) 0x01)).add(
DSL.shr(DSL.bitAnd(f, inline((byte) 0x02)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((byte) 0x04)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((byte) 0x08)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((byte) 0x10)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((byte) 0x20)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((byte) 0x40)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((byte) 0x80)), inline(++i))).cast(Integer.class);
}
else if (field.getType() == Short.class) {
@SuppressWarnings("unchecked")
Field f = (Field) field;
short i = 0;
return DSL.bitAnd(f, inline((short) 0x0001)).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0002)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0004)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0008)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0010)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0020)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0040)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0080)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0100)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0200)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0400)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x0800)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x1000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x2000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x4000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline((short) 0x8000)), inline(++i))).cast(Integer.class);
}
else if (field.getType() == Integer.class) {
@SuppressWarnings("unchecked")
Field f = (Field) field;
int i = 0;
return DSL.bitAnd(f, inline(0x00000001)).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000002)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000004)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000008)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000010)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000020)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000040)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000080)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000100)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000200)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000400)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00000800)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00001000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00002000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00004000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00008000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00010000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00020000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00040000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00080000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00100000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00200000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00400000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x00800000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x01000000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x02000000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x04000000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x08000000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x10000000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x20000000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x40000000)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x80000000)), inline(++i)));
}
else if (field.getType() == Long.class) {
@SuppressWarnings("unchecked")
Field f = (Field) field;
long i = 0;
return DSL.bitAnd(f, inline(0x0000000000000001L)).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000002L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000004L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000008L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000010L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000020L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000040L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000080L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000100L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000200L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000400L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000000800L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000001000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000002000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000004000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000008000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000010000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000020000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000040000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000080000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000100000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000200000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000400000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000000800000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000001000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000002000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000004000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000008000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000010000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000020000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000040000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000080000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000100000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000200000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000400000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000000800000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000001000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000002000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000004000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000008000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000010000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000020000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000040000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000080000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000100000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000200000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000400000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0000800000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0001000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0002000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0004000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0008000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0010000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0020000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0040000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0080000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0100000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0200000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0400000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x0800000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x1000000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x2000000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x4000000000000000L)), inline(++i))).add(
DSL.shr(DSL.bitAnd(f, inline(0x8000000000000000L)), inline(++i))).cast(Integer.class);
}
else {
// Currently not supported
return function("bit_count", getDataType(), getArguments());
}
}
}
}
}
