org.apache.openjpa.jdbc.meta.JavaSQLTypes Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.openjpa.jdbc.meta;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.sql.Time;
import java.sql.Timestamp;
import org.apache.openjpa.meta.JavaTypes;
/**
* Java SQL type constants.
*
* @author Abe White
*/
public class JavaSQLTypes
extends JavaTypes {
// constants for the sql types that aren't directly supported by
// OpenJPA; make sure these don't conflict with our standard metadata types
public static final int SQL_ARRAY = 1000;
public static final int ASCII_STREAM = 1001;
public static final int BINARY_STREAM = 1002;
public static final int BLOB = 1003;
public static final int BYTES = 1004;
public static final int CHAR_STREAM = 1005;
public static final int CLOB = 1006;
public static final int SQL_DATE = 1007;
public static final int SQL_OBJECT = 1008;
public static final int REF = 1009;
public static final int TIME = 1010;
public static final int TIMESTAMP = 1011;
public static final int JDBC_DEFAULT = 1012;
private static final Byte ZERO_BYTE = Byte.valueOf((byte) 0);
private static final Character ZERO_CHAR = Character.valueOf((char) 0);
private static final Double ZERO_DOUBLE = Double.valueOf(0d);
private static final Float ZERO_FLOAT = Float.valueOf(0f);
private static final Short ZERO_SHORT = Short.valueOf((short) 0);
private static final BigDecimal ZERO_BIGDECIMAL = new BigDecimal(0d);
private static final Byte NONZERO_BYTE = new Byte((byte) 1);
private static final Character NONZERO_CHAR = Character.valueOf((char) 'a');
private static final Double NONZERO_DOUBLE = Double.valueOf(1d);
private static final Float NONZERO_FLOAT = Float.valueOf(1f);
private static final Short NONZERO_SHORT = Short.valueOf((short) 1);
private static final BigInteger NONZERO_BIGINTEGER = new BigInteger("1");
private static final BigDecimal NONZERO_BIGDECIMAL = new BigDecimal(1d);
/**
* Return the proper date typecode.
*/
public static int getDateTypeCode(Class dtype) {
if (dtype == java.util.Date.class)
return DATE;
if (dtype == java.sql.Date.class)
return SQL_DATE;
if (dtype == Timestamp.class)
return TIMESTAMP;
if (dtype == Time.class)
return TIME;
return OBJECT;
}
/**
* Return an empty value object for the given type code.
*/
public static Object getEmptyValue(int type) {
switch (type) {
case JavaTypes.STRING:
return "";
case JavaTypes.BOOLEAN:
case JavaTypes.BOOLEAN_OBJ:
return Boolean.FALSE;
case JavaTypes.BYTE:
case JavaTypes.BYTE_OBJ:
return ZERO_BYTE;
case JavaTypes.CHAR:
case JavaTypes.CHAR_OBJ:
return ZERO_CHAR;
case JavaTypes.DOUBLE:
case JavaTypes.DOUBLE_OBJ:
return ZERO_DOUBLE;
case JavaTypes.FLOAT:
case JavaTypes.FLOAT_OBJ:
return ZERO_FLOAT;
case JavaTypes.INT:
case JavaTypes.INT_OBJ:
return 0;
case JavaTypes.LONG:
case JavaTypes.LONG_OBJ:
return 0L;
case JavaTypes.SHORT:
case JavaTypes.SHORT_OBJ:
return ZERO_SHORT;
case JavaTypes.BIGINTEGER:
return BigInteger.ZERO;
case JavaTypes.BIGDECIMAL:
case JavaTypes.NUMBER:
return ZERO_BIGDECIMAL;
default:
return null;
}
}
/**
* Return a non-empty value object for the given type code.
*/
public static Object getNonEmptyValue(int type) {
switch (type) {
case JavaTypes.STRING:
return "x";
case JavaTypes.BOOLEAN:
case JavaTypes.BOOLEAN_OBJ:
return Boolean.TRUE;
case JavaTypes.BYTE:
case JavaTypes.BYTE_OBJ:
return NONZERO_BYTE;
case JavaTypes.CHAR:
case JavaTypes.CHAR_OBJ:
return NONZERO_CHAR;
case JavaTypes.DOUBLE:
case JavaTypes.DOUBLE_OBJ:
return NONZERO_DOUBLE;
case JavaTypes.FLOAT:
case JavaTypes.FLOAT_OBJ:
return NONZERO_FLOAT;
case JavaTypes.INT:
case JavaTypes.INT_OBJ:
return 1;
case JavaTypes.LONG:
case JavaTypes.LONG_OBJ:
return 1L;
case JavaTypes.SHORT:
case JavaTypes.SHORT_OBJ:
return NONZERO_SHORT;
case JavaTypes.BIGINTEGER:
return NONZERO_BIGINTEGER;
case JavaTypes.BIGDECIMAL:
case JavaTypes.NUMBER:
return NONZERO_BIGDECIMAL;
default:
return null;
}
}
}