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Source Code for Connector/J 8.0.31 - User Impl
Where to get the Java source code for Connector/J 8.0 User Impl module?
✍: FYIcenter.com
Java source code files for Connector/J 8.0 User Impl module are:
⏎ com/mysql/cj/jdbc/result/ResultSetMetaData.java
/* * Copyright (c) 2002, 2022, Oracle and/or its affiliates. * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License, version 2.0, as published by the * Free Software Foundation. * * This program is also distributed with certain software (including but not * limited to OpenSSL) that is licensed under separate terms, as designated in a * particular file or component or in included license documentation. The * authors of MySQL hereby grant you an additional permission to link the * program and your derivative works with the separately licensed software that * they have included with MySQL. * * Without limiting anything contained in the foregoing, this file, which is * part of MySQL Connector/J, is also subject to the Universal FOSS Exception, * version 1.0, a copy of which can be found at * http://oss.oracle.com/licenses/universal-foss-exception. * * 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 General Public License, version 2.0, * for more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ package com.mysql.cj.jdbc.result; import java.sql.SQLException; import java.sql.Types; import com.mysql.cj.Messages; import com.mysql.cj.MysqlType; import com.mysql.cj.Session; import com.mysql.cj.conf.PropertyDefinitions.DatabaseTerm; import com.mysql.cj.conf.PropertyKey; import com.mysql.cj.exceptions.ExceptionInterceptor; import com.mysql.cj.exceptions.MysqlErrorNumbers; import com.mysql.cj.jdbc.exceptions.SQLError; import com.mysql.cj.result.Field; /** * A ResultSetMetaData object can be used to find out about the types and properties of the columns in a ResultSet */ public class ResultSetMetaData implements java.sql.ResultSetMetaData { private static int clampedGetLength(Field f) { long fieldLength = f.getLength(); if (fieldLength > Integer.MAX_VALUE) { fieldLength = Integer.MAX_VALUE; } return (int) fieldLength; } /* Session, used only for `getMaxBytesPerChar()' */ private Session session; private Field[] fields; boolean useOldAliasBehavior = false; boolean treatYearAsDate = true; private ExceptionInterceptor exceptionInterceptor; /** * Initialize for a result with a tuple set and a field descriptor set * * @param session * this {@link Session} * * @param fields * the array of field descriptors * @param useOldAliasBehavior * 'useOldAliasMetadataBehavior' property value * @param treatYearAsDate * 'yearIsDateType' property value * @param exceptionInterceptor * exception interceptor */ public ResultSetMetaData(Session session, Field[] fields, boolean useOldAliasBehavior, boolean treatYearAsDate, ExceptionInterceptor exceptionInterceptor) { this.session = session; this.fields = fields; this.useOldAliasBehavior = useOldAliasBehavior; this.treatYearAsDate = treatYearAsDate; this.exceptionInterceptor = exceptionInterceptor; } @Override public String getCatalogName(int column) throws SQLException { if (this.session.getPropertySet().<DatabaseTerm>getEnumProperty(PropertyKey.databaseTerm).getValue() == DatabaseTerm.SCHEMA) { return ""; } String database = getField(column).getDatabaseName(); return (database == null) ? "" : database; } /** * What's the Java character encoding name for the given column? * * @param column * the first column is 1, the second is 2, etc. * * @return the Java character encoding name for the given column, or null if * no Java character encoding maps to the MySQL character set for * the given column. * * @throws SQLException * if an invalid column index is given. */ public String getColumnCharacterEncoding(int column) throws SQLException { return getField(column).getEncoding(); } /** * What's the MySQL character set name for the given column? * * @param column * the first column is 1, the second is 2, etc. * * @return the MySQL character set name for the given column * * @throws SQLException * if an invalid column index is given. */ public String getColumnCharacterSet(int column) throws SQLException { return this.session.getServerSession().getCharsetSettings().getMysqlCharsetNameForCollationIndex(getField(column).getCollationIndex()); } @Override public String getColumnClassName(int column) throws SQLException { Field f = getField(column); switch (f.getMysqlType()) { case YEAR: if (!this.treatYearAsDate) { return Short.class.getName(); } return f.getMysqlType().getClassName(); default: return f.getMysqlType().getClassName(); } } @Override public int getColumnCount() throws SQLException { return this.fields.length; } @Override public int getColumnDisplaySize(int column) throws SQLException { Field f = getField(column); int lengthInBytes = clampedGetLength(f); return lengthInBytes / this.session.getServerSession().getCharsetSettings().getMaxBytesPerChar(f.getCollationIndex(), f.getEncoding()); } @Override public String getColumnLabel(int column) throws SQLException { if (this.useOldAliasBehavior) { return getColumnName(column); } return getField(column).getColumnLabel(); } @Override public String getColumnName(int column) throws SQLException { if (this.useOldAliasBehavior) { return getField(column).getName(); } String name = getField(column).getOriginalName(); if (name == null) { return getField(column).getName(); } return name; } @Override public int getColumnType(int column) throws SQLException { Field f = getField(column); if (f.getMysqlType() == MysqlType.YEAR && !this.treatYearAsDate) { return Types.SMALLINT; } return f.getJavaType(); } @Override public String getColumnTypeName(int column) throws java.sql.SQLException { Field field = getField(column); return field.getMysqlType().getName(); } /** * Returns the field instance for the given column index * * @param columnIndex * the column number to retrieve a field instance for * * @return the field instance for the given column index * * @throws SQLException * if an error occurs */ protected Field getField(int columnIndex) throws SQLException { if ((columnIndex < 1) || (columnIndex > this.fields.length)) { throw SQLError.createSQLException(Messages.getString("ResultSetMetaData.46"), MysqlErrorNumbers.SQL_STATE_INVALID_COLUMN_NUMBER, this.exceptionInterceptor); } return this.fields[columnIndex - 1]; } @Override public int getPrecision(int column) throws SQLException { Field f = getField(column); switch (f.getMysqlType()) { case TINYBLOB: case BLOB: case MEDIUMBLOB: case LONGBLOB: // for binary BLOBS returning the full length, *TEXT types are handled by default clause below return clampedGetLength(f); default: return f.getMysqlType().isDecimal() ? clampedGetLength(f) : clampedGetLength(f) / this.session.getServerSession().getCharsetSettings().getMaxBytesPerChar(f.getCollationIndex(), f.getEncoding()); } } @Override public int getScale(int column) throws SQLException { Field f = getField(column); if (f.getMysqlType().isDecimal()) { return f.getDecimals(); } return 0; } @Override public String getSchemaName(int column) throws SQLException { if (this.session.getPropertySet().<DatabaseTerm>getEnumProperty(PropertyKey.databaseTerm).getValue() == DatabaseTerm.CATALOG) { return ""; } String database = getField(column).getDatabaseName(); return (database == null) ? "" : database; } @Override public String getTableName(int column) throws SQLException { String res = this.useOldAliasBehavior ? getField(column).getTableName() : getField(column).getOriginalTableName(); return res == null ? "" : res; } @Override public boolean isAutoIncrement(int column) throws SQLException { Field f = getField(column); return f.isAutoIncrement(); } @Override public boolean isCaseSensitive(int column) throws java.sql.SQLException { Field field = getField(column); switch (field.getMysqlType()) { case BIT: case TINYINT: case TINYINT_UNSIGNED: case SMALLINT: case SMALLINT_UNSIGNED: case INT: case INT_UNSIGNED: case MEDIUMINT: case MEDIUMINT_UNSIGNED: case BIGINT: case BIGINT_UNSIGNED: case FLOAT: case FLOAT_UNSIGNED: case DOUBLE: case DOUBLE_UNSIGNED: case DATE: case YEAR: case TIME: case TIMESTAMP: case DATETIME: return false; case CHAR: case VARCHAR: case TINYTEXT: case TEXT: case MEDIUMTEXT: case LONGTEXT: case JSON: case ENUM: case SET: String collationName = this.session.getServerSession().getCharsetSettings().getCollationNameForCollationIndex(field.getCollationIndex()); return ((collationName != null) && !collationName.endsWith("_ci")); default: return true; } } @Override public boolean isCurrency(int column) throws SQLException { return false; } @Override public boolean isDefinitelyWritable(int column) throws SQLException { return isWritable(column); } @Override public int isNullable(int column) throws SQLException { if (!getField(column).isNotNull()) { return java.sql.ResultSetMetaData.columnNullable; } return java.sql.ResultSetMetaData.columnNoNulls; } @Override public boolean isReadOnly(int column) throws SQLException { return getField(column).isReadOnly(); } @Override public boolean isSearchable(int column) throws SQLException { return true; } @Override public boolean isSigned(int column) throws SQLException { return MysqlType.isSigned(getField(column).getMysqlType()); } @Override public boolean isWritable(int column) throws SQLException { return !isReadOnly(column); } @Override public String toString() { StringBuilder toStringBuf = new StringBuilder(); toStringBuf.append(super.toString()); toStringBuf.append(" - Field level information: "); for (int i = 0; i < this.fields.length; i++) { toStringBuf.append("\n\t"); toStringBuf.append(this.fields[i].toString()); } return toStringBuf.toString(); } @Override public boolean isWrapperFor(Class<?> iface) throws SQLException { // This works for classes that aren't actually wrapping anything return iface.isInstance(this); } @Override public <T> T unwrap(Class<T> iface) throws SQLException { try { // This works for classes that aren't actually wrapping anything return iface.cast(this); } catch (ClassCastException cce) { throw SQLError.createSQLException(Messages.getString("Common.UnableToUnwrap", new Object[] { iface.toString() }), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } } public Field[] getFields() { return this.fields; } }
⏎ com/mysql/cj/jdbc/result/ResultSetMetaData.java
Or download all of them as a single archive file:
File name: mysql-connector-java-user-impl-8.0.31.zip File size: 429580 bytes Release date: 2022-09-03 Download
⇒ Downloading mysql-connector-java-5.1.40.zip
⇐ Source Code for Connector/J 8.0.31 - User API
2023-05-09, 7593👍, 0💬
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