mirror of https://github.com/apache/openjpa.git
submitting patches for OPENJPA-92. I have not tested them aside from compiling and running the regression tests (against Derby).
git-svn-id: https://svn.apache.org/repos/asf/incubator/openjpa/trunk@491148 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Patrick Linskey
parent
4611bf9e43
commit
a255da6f65
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@ -201,6 +201,12 @@ public class DBDictionaryFactory {
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return CacheDictionary.class.getName();
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if (prod.indexOf("derby") != -1)
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return DerbyDictionary.class.getName();
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// test h2 in a special way, because there's a decent chance the string
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// h2 could appear in the URL of another database
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if (prod.indexOf("jdbc:h2:") != -1)
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return H2Dictionary.class.getName();
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if (prod.indexOf("h2 database") != -1)
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return H2Dictionary.class.getName();
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// test db2 last, because there's a decent chance this string could
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// appear in the URL of another database (like if the db is named
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// "testdb2" or something)
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@ -0,0 +1,230 @@
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package org.apache.openjpa.jdbc.sql;
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import java.math.BigDecimal;
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import java.sql.Connection;
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import java.sql.DatabaseMetaData;
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import java.sql.PreparedStatement;
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import java.sql.SQLException;
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import java.sql.Types;
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import java.util.Arrays;
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import java.util.Locale;
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import org.apache.commons.lang.StringUtils;
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import org.apache.openjpa.jdbc.kernel.exps.FilterValue;
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import org.apache.openjpa.jdbc.schema.Column;
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import org.apache.openjpa.jdbc.schema.PrimaryKey;
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import org.apache.openjpa.jdbc.schema.Table;
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import org.apache.openjpa.jdbc.schema.Unique;
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import org.apache.openjpa.meta.JavaTypes;
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/**
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* Support for the H2 database ({@link http://www.h2database.com}).
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*
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* @since 0.9.7
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*/
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public class H2Dictionary extends DBDictionary {
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public H2Dictionary() {
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platform = "H2";
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validationSQL = "CALL 1";
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closePoolSQL = "SHUTDOWN";
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supportsAutoAssign = true;
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lastGeneratedKeyQuery = "CALL IDENTITY()";
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autoAssignClause = "IDENTITY";
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autoAssignTypeName = "INTEGER";
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nextSequenceQuery = "CALL NEXT VALUE FOR {0}";
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// CROSS JOIN is currently not supported
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crossJoinClause = "JOIN";
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requiresConditionForCrossJoin = true;
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stringLengthFunction = "LENGTH({0})";
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trimLeadingFunction = "LTRIM({0})";
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trimTrailingFunction = "RTRIM({0})";
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trimBothFunction = "TRIM({0})";
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useSchemaName = true;
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supportsSelectForUpdate = true;
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supportsSelectStartIndex = true;
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supportsSelectEndIndex = true;
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rangePosition = RANGE_POST_LOCK;
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supportsDeferredConstraints = false;
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useGetObjectForBlobs = true;
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blobTypeName = "BLOB";
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doubleTypeName = "DOUBLE";
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supportsNullTableForGetPrimaryKeys = true;
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supportsNullTableForGetIndexInfo = true;
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requiresCastForMathFunctions = false;
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requiresCastForComparisons = false;
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reservedWordSet.addAll(Arrays.asList(new String[] {
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"CURRENT_TIMESTAMP", "CURRENT_TIME", "CURRENT_DATE", "CROSS",
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"DISTINCT", "EXCEPT", "EXISTS", "FROM", "FOR", "FALSE", "FULL",
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"GROUP", "HAVING", "INNER", "INTERSECT", "IS", "JOIN", "LIKE",
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"MINUS", "NATURAL", "NOT", "NULL", "ON", "ORDER", "PRIMARY",
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"ROWNUM", "SELECT", "SYSDATE", "SYSTIME", "SYSTIMESTAMP", "TODAY",
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"TRUE", "UNION", "WHERE"
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}));
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}
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public int getJDBCType(int metaTypeCode, boolean lob) {
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int type = super.getJDBCType(metaTypeCode, lob);
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switch (type) {
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case Types.BIGINT:
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if (metaTypeCode == JavaTypes.BIGINTEGER)
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return Types.NUMERIC;
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break;
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}
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return type;
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}
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public int getPreferredType(int type) {
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return super.getPreferredType(type);
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}
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public String[] getAddPrimaryKeySQL(PrimaryKey pk) {
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return new String[0];
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}
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public String[] getDropPrimaryKeySQL(PrimaryKey pk) {
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return new String[0];
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}
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public String[] getAddColumnSQL(Column column) {
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return new String[] {
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"ALTER TABLE " + getFullName(column.getTable(), false)
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+ " ADD COLUMN " + getDeclareColumnSQL(column, true)
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};
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}
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public String[] getCreateTableSQL(Table table) {
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StringBuffer buf = new StringBuffer();
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buf.append("CREATE TABLE ").append(getFullName(table, false))
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.append(" (");
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Column[] cols = table.getColumns();
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for (int i = 0; i < cols.length; i++) {
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if (i > 0)
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buf.append(", ");
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buf.append(getDeclareColumnSQL(cols[i], false));
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}
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PrimaryKey pk = table.getPrimaryKey();
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String pkStr;
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if (pk != null) {
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pkStr = getPrimaryKeyConstraintSQL(pk);
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if (!StringUtils.isEmpty(pkStr))
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buf.append(", ").append(pkStr);
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}
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Unique[] unqs = table.getUniques();
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String unqStr;
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for (int i = 0; i < unqs.length; i++) {
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unqStr = getUniqueConstraintSQL(unqs[i]);
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if (unqStr != null)
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buf.append(", ").append(unqStr);
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}
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buf.append(")");
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return new String[] { buf.toString() };
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}
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protected String getPrimaryKeyConstraintSQL(PrimaryKey pk) {
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Column[] cols = pk.getColumns();
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if (cols.length == 1 && cols[0].isAutoAssigned())
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return null;
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return super.getPrimaryKeyConstraintSQL(pk);
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}
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public boolean isSystemIndex(String name, Table table) {
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return name.toUpperCase(Locale.ENGLISH).startsWith("SYSTEM_");
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}
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protected String getSequencesSQL(String schemaName, String sequenceName) {
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StringBuffer buf = new StringBuffer();
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buf.append("SELECT SEQUENCE_SCHEMA, SEQUENCE_NAME FROM ")
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.append("INFORMATION_SCHEMA.SEQUENCES");
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if (schemaName != null || sequenceName != null)
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buf.append(" WHERE ");
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if (schemaName != null) {
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buf.append("SEQUENCE_SCHEMA = ?");
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if (sequenceName != null)
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buf.append(" AND ");
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}
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if (sequenceName != null)
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buf.append("SEQUENCE_NAME = ?");
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return buf.toString();
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}
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protected SQLBuffer toOperation(String op, SQLBuffer selects,
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SQLBuffer from, SQLBuffer where, SQLBuffer group, SQLBuffer having,
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SQLBuffer order, boolean distinct, boolean forUpdate, long start,
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long end) {
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return super.toOperation(op, selects, from, where, group, having,
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order, distinct, forUpdate, start, end);
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}
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public Column[] getColumns(DatabaseMetaData meta, String catalog,
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String schemaName, String tableName, String columnName, Connection conn)
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throws SQLException {
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Column[] cols = super.getColumns(meta, catalog, schemaName, tableName,
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columnName, conn);
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return cols;
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}
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public void setDouble(PreparedStatement stmnt, int idx, double val,
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Column col)
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throws SQLException {
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super.setDouble(stmnt, idx, val, col);
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}
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public void setBigDecimal(PreparedStatement stmnt, int idx, BigDecimal val,
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Column col)
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throws SQLException {
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super.setBigDecimal(stmnt, idx, val, col);
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}
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protected void appendSelectRange(SQLBuffer buf, long start, long end) {
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if (end != Long.MAX_VALUE)
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buf.append(" LIMIT ").appendValue(end - start);
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if (start != 0)
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buf.append(" OFFSET ").appendValue(start);
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}
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public void substring(SQLBuffer buf, FilterValue str, FilterValue start,
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FilterValue end) {
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buf.append("SUBSTR(");
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str.appendTo(buf);
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buf.append(", (");
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start.appendTo(buf);
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buf.append(" + 1)");
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if (end != null) {
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buf.append(", (");
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end.appendTo(buf);
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buf.append(" - ");
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start.appendTo(buf);
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buf.append(")");
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}
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buf.append(")");
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}
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public void indexOf(SQLBuffer buf, FilterValue str, FilterValue find,
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FilterValue start) {
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buf.append("(POSITION(");
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find.appendTo(buf);
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buf.append(" IN ");
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if (start != null)
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substring(buf, str, start, null);
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else
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str.appendTo(buf);
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buf.append(") - 1");
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if (start != null) {
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buf.append(" + ");
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start.appendTo(buf);
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}
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buf.append(")");
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}
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}
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@ -179,6 +179,7 @@ MappingDefaults-displayorder: 50
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MappingDefaults-interface: org.apache.openjpa.jdbc.meta.MappingDefaults
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ConnectionDriverName-values: org.hsqldb.jdbcDriver,org.hsql.jdbcDriver,\
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org.h2.Driver,\
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COM.cloudscape.core.JDBCDriver,in.co.daffodil.db.jdbc.DaffodilDBDriver,\
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com.ddtek.jdbc.db2.DB2Driver,interbase.interclient.Driver,\
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com.mysql.jdbc.Driver,com.ddtek.jdbc.oracle.OracleDriver,\
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@ -213,7 +214,7 @@ ConnectionURL-values: jdbc:JSQLConnect://<hostname>/database=<database>,\
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MaxPooledStatements=0,\
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jdbc:datadirect:sqlserver://<hostname>:1433;SelectMethod=cursor;\
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DatabaseName=<database>,jdbc:datadirect:sybase://<hostname>:5000,\
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jdbc:db2://<hostname>/<database>,jdbc:hsqldb:<database>,\
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jdbc:db2://<hostname>/<database>,jdbc:hsqldb:<database>,jdbc:h2:<database>,\
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jdbc:idb:<database>.properties,\
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jdbc:informix-sqli://<hostname>:1526/<database>:INFORMIXSERVER=<database>,\
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jdbc:interbase://<hostname>//<database>.gdb,\
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@ -132,6 +132,20 @@ by OpenJPA.
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1.0.1
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</entry>
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</row>
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<row>
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<entry colname="dbname">
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H2 Database Engine
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</entry>
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<entry colname="dbversion">
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1.0
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</entry>
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<entry colname="drivname">
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H2
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</entry>
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<entry colname="drivversion">
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1.0
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</entry>
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</row>
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<row>
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<entry colname="dbname">
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Hypersonic Database Engine
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@ -448,6 +462,32 @@ Only the category 2 non-local driver is supported.
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</itemizedlist>
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</section>
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</section>
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<section id="dbsupport_h2">
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<title>
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H2 Database Engine
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</title>
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<example id="example_props_h2">
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<title>
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Example properties for H2 Database Engine
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</title>
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<programlisting>
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openjpa.ConnectionDriverName: org.h2.Driver
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openjpa.ConnectionURL: jdbc:h2:DB_NAME
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</programlisting>
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</example>
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<section id="dbsupport_h2_issues">
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<title>
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Known issues with H2 Database Engine
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</title>
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<itemizedlist>
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<listitem>
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<para>
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H2 does not support cross joins
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</para>
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</listitem>
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</itemizedlist>
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</section>
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</section>
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<section id="dbsupport_hypersonic">
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<title>
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Hypersonic
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