/*
 * Copyright 2002-2018 the original author or authors.
 *
 * 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.
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package org.springframework.jdbc.support.rowset;

import java.sql.ResultSetMetaData;
import java.sql.SQLException;

import org.springframework.jdbc.InvalidResultSetAccessException;
import org.springframework.lang.Nullable;

The default implementation of Spring's SqlRowSetMetaData interface, wrapping a ResultSetMetaData instance, catching any SQLExceptions and translating them to a corresponding Spring InvalidResultSetAccessException.

Used by ResultSetWrappingSqlRowSet.

Author:Thomas Risberg, Juergen Hoeller
See Also:
Since:1.2
/** * The default implementation of Spring's {@link SqlRowSetMetaData} interface, wrapping a * {@link java.sql.ResultSetMetaData} instance, catching any {@link SQLException SQLExceptions} * and translating them to a corresponding Spring {@link InvalidResultSetAccessException}. * * <p>Used by {@link ResultSetWrappingSqlRowSet}. * * @author Thomas Risberg * @author Juergen Hoeller * @since 1.2 * @see ResultSetWrappingSqlRowSet#getMetaData() */
public class ResultSetWrappingSqlRowSetMetaData implements SqlRowSetMetaData { private final ResultSetMetaData resultSetMetaData; @Nullable private String[] columnNames;
Create a new ResultSetWrappingSqlRowSetMetaData object for the given ResultSetMetaData instance.
Params:
  • resultSetMetaData – a disconnected ResultSetMetaData instance to wrap (usually a javax.sql.RowSetMetaData instance)
See Also:
/** * Create a new ResultSetWrappingSqlRowSetMetaData object * for the given ResultSetMetaData instance. * @param resultSetMetaData a disconnected ResultSetMetaData instance * to wrap (usually a {@code javax.sql.RowSetMetaData} instance) * @see java.sql.ResultSet#getMetaData * @see javax.sql.RowSetMetaData * @see ResultSetWrappingSqlRowSet#getMetaData */
public ResultSetWrappingSqlRowSetMetaData(ResultSetMetaData resultSetMetaData) { this.resultSetMetaData = resultSetMetaData; } @Override public String getCatalogName(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getCatalogName(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public String getColumnClassName(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getColumnClassName(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public int getColumnCount() throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getColumnCount(); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public String[] getColumnNames() throws InvalidResultSetAccessException { if (this.columnNames == null) { this.columnNames = new String[getColumnCount()]; for (int i = 0; i < getColumnCount(); i++) { this.columnNames[i] = getColumnName(i + 1); } } return this.columnNames; } @Override public int getColumnDisplaySize(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getColumnDisplaySize(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public String getColumnLabel(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getColumnLabel(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public String getColumnName(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getColumnName(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public int getColumnType(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getColumnType(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public String getColumnTypeName(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getColumnTypeName(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public int getPrecision(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getPrecision(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public int getScale(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getScale(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public String getSchemaName(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getSchemaName(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public String getTableName(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.getTableName(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public boolean isCaseSensitive(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.isCaseSensitive(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public boolean isCurrency(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.isCurrency(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } @Override public boolean isSigned(int column) throws InvalidResultSetAccessException { try { return this.resultSetMetaData.isSigned(column); } catch (SQLException se) { throw new InvalidResultSetAccessException(se); } } }