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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.sql;
import java.io.InputStream;
import java.io.Reader;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.sql.Array;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Time;
import java.sql.Timestamp;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import org.apache.openjpa.jdbc.kernel.JDBCStore;
import org.apache.openjpa.jdbc.meta.ClassMapping;
import org.apache.openjpa.jdbc.meta.JavaSQLTypes;
import org.apache.openjpa.jdbc.meta.Joinable;
import org.apache.openjpa.jdbc.meta.RelationId;
import org.apache.openjpa.jdbc.schema.Column;
import org.apache.openjpa.jdbc.schema.ColumnIO;
import org.apache.openjpa.jdbc.schema.ForeignKey;
import org.apache.openjpa.jdbc.schema.Table;
import org.apache.openjpa.kernel.OpenJPAStateManager;
import org.apache.openjpa.meta.JavaTypes;
import org.apache.openjpa.util.InternalException;
/**
* Basic {@link Row} implementation.
*
* @author Abe White
* @nojavadoc
*/
public class RowImpl
implements Row, Cloneable {
public static final Object NULL = new Object();
protected static final int VALID = 2 << 0;
public static final int RAW = Integer.MIN_VALUE;
protected byte flags = 0;
private final Column[] _cols;
private final int _action;
private final Object[] _vals;
private final int[] _types;
private String _sql = null;
private boolean _isFlushed = false;
/**
* Constructor.
*
* @param table the table the row is a part of
* @param action the action on the row
*/
public RowImpl(Table table, int action) {
this(table.getColumns(), action);
}
protected RowImpl(Column[] cols, int action) {
_cols = cols;
_action = action;
// we need room for values and types for all columns; if an update or
// delete, then we need to double that for where column conditions
int len = _cols.length;
if (action != ACTION_INSERT)
len *= 2;
_vals = new Object[len];
_types = new int[len];
}
public Table getTable() {
return _cols[0].getTable();
}
public Column[] getColumns() {
return _cols;
}
public int getAction() {
return _action;
}
public boolean isValid() {
return (flags & VALID) != 0;
}
public void setValid(boolean valid) {
if (valid)
flags |= VALID;
else
flags &= ~VALID;
}
/**
* This implementation does not track primary keys.
*/
public OpenJPAStateManager getPrimaryKey() {
return null;
}
/**
* This implementation does not track failed objects.
*/
public Object getFailedObject() {
return null;
}
/**
* This implementation does not track failed objects.
*/
public void setFailedObject(Object failed) {
throw new InternalException();
}
/**
* Secondary rows cannot be dependent.
*/
public boolean isDependent() {
return false;
}
/**
* Return the value set for update on the given column.
*/
public Object getSet(Column col) {
return _vals[getSetIndex(col)];
}
/**
* Return the value set for where on the given column.
*/
public Object getWhere(Column col) {
return _vals[getWhereIndex(col)];
}
public void setPrimaryKey(OpenJPAStateManager sm)
throws SQLException {
setPrimaryKey(null, sm);
}
public void setPrimaryKey(ColumnIO io, OpenJPAStateManager sm)
throws SQLException {
flushPrimaryKey(sm, io, true);
}
public void wherePrimaryKey(OpenJPAStateManager sm)
throws SQLException {
flushPrimaryKey(sm, null, false);
}
/**
* Flush the primary key values.
*/
private void flushPrimaryKey(OpenJPAStateManager sm, ColumnIO io,
boolean set)
throws SQLException {
ClassMapping mapping = (ClassMapping) sm.getMetaData();
while (mapping.getTable() != getTable())
mapping = mapping.getPCSuperclassMapping();
Column[] cols = mapping.getPrimaryKeyColumns();
Object oid = mapping.useIdClassFromParent() ? sm.getObjectId() : null;
flushJoinValues(sm, oid, cols, cols, io, set);
}
public void setForeignKey(ForeignKey fk, OpenJPAStateManager sm)
throws SQLException {
setForeignKey(fk, null, sm);
}
public void setForeignKey(ForeignKey fk, ColumnIO io,
OpenJPAStateManager sm)
throws SQLException {
flushForeignKey(fk, io, sm, true);
}
public void whereForeignKey(ForeignKey fk, OpenJPAStateManager sm)
throws SQLException {
flushForeignKey(fk, null, sm, false);
}
/**
* Clear a circular foreign key.
*/
public void clearForeignKey(ForeignKey fk)
throws SQLException {
_sql = null;
Column[] cols = fk.getColumns();
for (int i = 0; i < cols.length; i++)
_vals[getSetIndex(cols[i])] = null;
}
/**
* Flush the foreign key values.
*/
private void flushForeignKey(ForeignKey fk, ColumnIO io,
OpenJPAStateManager sm, boolean set)
throws SQLException {
flushJoinValues(sm, null, fk.getPrimaryKeyColumns(), fk.getColumns(),
io, set);
if (sm != null) {
Column[] cols = fk.getConstantColumns();
int len = fk.getColumns().length;
Object obj;
int type;
for (int i = 0; i < cols.length; i++) {
obj = fk.getConstant(cols[i]);
type = cols[i].getJavaType();
if (set && canSet(io, i + len, obj == null))
setObject(cols[i], obj, type, false);
else if (!set)
whereObject(cols[i], obj, type);
}
}
}
/**
* Flush the given instance value to the given columns. Note that
* foreign keys may include columns also mapped by simple values. We
* use a priority mechanism to ensure that we do not let the nulling
* of a foreign key null columns also owned by simple values.
*
* @param to the instance being joined to
* @param toCols the columns being joined to
* @param fromCols the columns being joined from
* @param io information about I/O capabilities in this context
* @param set whether this should be flushed as an update or
* as a where condition
*/
private void flushJoinValues(OpenJPAStateManager to, Object oid, Column[] toCols,
Column[] fromCols, ColumnIO io, boolean set)
throws SQLException {
if (to == null) {
for (int i = 0; i < fromCols.length; i++) {
if (set && canSet(io, i, true))
setNull(fromCols[i]);
else if (!set)
whereNull(fromCols[i]);
}
return;
}
if (set && !canSetAny(io, fromCols.length, false))
return;
ClassMapping toMapping = (ClassMapping) to.getMetaData();
Joinable join;
Object val;
for (int i = 0; i < toCols.length; i++) {
// don't even translate join value if unsettable
if (set) {
if (_action == ACTION_INSERT && fromCols[i].isAutoAssigned())
continue;
if (!canSet(io, i, false))
continue;
}
join = toMapping.assertJoinable(toCols[i]);
if (oid != null)
val = join.getJoinValue(oid, toCols[i], (JDBCStore) to.
getContext().getStoreManager().getInnermostDelegate());
else
val = join.getJoinValue(to, toCols[i], (JDBCStore) to.
getContext().getStoreManager().getInnermostDelegate());
if (set && val == null) {
if (canSet(io, i, true))
setNull(fromCols[i]);
} else if (set && val instanceof Raw)
setRaw(fromCols[i], val.toString());
else if (set)
setObject(fromCols[i], val, toCols[i].getJavaType(), false);
else if (val == null)
whereNull(fromCols[i]);
else if (val instanceof Raw)
whereRaw(fromCols[i], val.toString());
else
whereObject(fromCols[i], val, toCols[i].getJavaType());
}
}
/**
* Return true if any of the given column indexes are settable.
*/
protected boolean canSetAny(ColumnIO io, int i, boolean nullValue) {
if (io == null)
return true;
if (_action == ACTION_INSERT)
return io.isAnyInsertable(i, nullValue);
if (_action == ACTION_UPDATE)
return io.isAnyUpdatable(i, nullValue);
return true;
}
/**
* Return true if the given column index is settable.
*/
protected boolean canSet(ColumnIO io, int i, boolean nullValue) {
if (io == null)
return true;
if (_action == ACTION_INSERT)
return io.isInsertable(i, nullValue);
if (_action == ACTION_UPDATE)
return io.isUpdatable(i, nullValue);
return true;
}
public void setRelationId(Column col, OpenJPAStateManager sm,
RelationId rel)
throws SQLException {
setObject(col, rel.toRelationDataStoreValue(sm, col),
col.getJavaType(), false);
}
/**
* Clear a circular relation id.
*/
public void clearRelationId(Column col)
throws SQLException {
_sql = null;
_vals[getSetIndex(col)] = null;
}
public void setArray(Column col, Array val)
throws SQLException {
setObject(col, val, JavaSQLTypes.ARRAY, false);
}
public void setAsciiStream(Column col, InputStream val, int length)
throws SQLException {
setObject(col, (val == null) ? null : new Sized(val, length),
JavaSQLTypes.ASCII_STREAM, false);
}
public void setBigDecimal(Column col, BigDecimal val)
throws SQLException {
setObject(col, val, JavaTypes.BIGDECIMAL, false);
}
public void setBigInteger(Column col, BigInteger val)
throws SQLException {
setObject(col, val, JavaTypes.BIGINTEGER, false);
}
public void setBinaryStream(Column col, InputStream val, int length)
throws SQLException {
setObject(col, (val == null) ? null : new Sized(val, length),
JavaSQLTypes.BINARY_STREAM, false);
}
public void setBlob(Column col, Blob val)
throws SQLException {
setObject(col, val, JavaSQLTypes.BLOB, false);
}
public void setBoolean(Column col, boolean val)
throws SQLException {
setObject(col, ((val) ? Boolean.TRUE : Boolean.FALSE),
JavaTypes.BOOLEAN, false);
}
public void setByte(Column col, byte val)
throws SQLException {
setObject(col, new Byte(val), JavaTypes.BYTE, false);
}
public void setBytes(Column col, byte[] val)
throws SQLException {
setObject(col, val, JavaSQLTypes.BYTES, false);
}
public void setCalendar(Column col, Calendar val)
throws SQLException {
setObject(col, val, JavaTypes.CALENDAR, false);
}
public void setChar(Column col, char val)
throws SQLException {
setObject(col, new Character(val), JavaTypes.CHAR, false);
}
public void setCharacterStream(Column col, Reader val, int length)
throws SQLException {
setObject(col, (val == null) ? null : new Sized(val, length),
JavaSQLTypes.CHAR_STREAM, false);
}
public void setClob(Column col, Clob val)
throws SQLException {
setObject(col, val, JavaSQLTypes.CLOB, false);
}
public void setDate(Column col, Date val)
throws SQLException {
setObject(col, val, JavaTypes.DATE, false);
}
public void setDate(Column col, java.sql.Date val, Calendar cal)
throws SQLException {
Object obj;
if (val == null || cal == null)
obj = val;
else
obj = new Calendard(val, cal);
setObject(col, obj, JavaSQLTypes.SQL_DATE, false);
}
public void setDouble(Column col, double val)
throws SQLException {
setObject(col, new Double(val), JavaTypes.DOUBLE, false);
}
public void setFloat(Column col, float val)
throws SQLException {
setObject(col, new Float(val), JavaTypes.FLOAT, false);
}
public void setInt(Column col, int val)
throws SQLException {
setObject(col, val, JavaTypes.INT, false);
}
public void setLong(Column col, long val)
throws SQLException {
setObject(col, val, JavaTypes.LONG, false);
}
public void setLocale(Column col, Locale val)
throws SQLException {
setObject(col, val, JavaTypes.LOCALE, false);
}
public void setNull(Column col)
throws SQLException {
setNull(col, false);
}
public void setNull(Column col, boolean overrideDefault)
throws SQLException {
setObject(col, null, col.getJavaType(), overrideDefault);
}
public void setNumber(Column col, Number val)
throws SQLException {
setObject(col, val, JavaTypes.NUMBER, false);
}
public void setRaw(Column col, String val)
throws SQLException {
setObject(col, val, RAW, false);
}
public void setShort(Column col, short val)
throws SQLException {
setObject(col, new Short(val), JavaTypes.SHORT, false);
}
public void setString(Column col, String val)
throws SQLException {
setObject(col, val, JavaTypes.STRING, false);
}
public void setTime(Column col, Time val, Calendar cal)
throws SQLException {
Object obj;
if (val == null || cal == null)
obj = val;
else
obj = new Calendard(val, cal);
setObject(col, obj, JavaSQLTypes.TIME, false);
}
public void setTimestamp(Column col, Timestamp val, Calendar cal)
throws SQLException {
Object obj;
if (val == null || cal == null)
obj = val;
else
obj = new Calendard(val, cal);
setObject(col, obj, JavaSQLTypes.TIMESTAMP, false);
}
public void setObject(Column col, Object val)
throws SQLException {
if (val instanceof Raw)
setObject(col, val, RAW, false);
else
setObject(col, val, col.getJavaType(), false);
}
public void whereArray(Column col, Array val)
throws SQLException {
whereObject(col, val, JavaSQLTypes.SQL_ARRAY);
}
public void whereAsciiStream(Column col, InputStream val, int length)
throws SQLException {
whereObject(col, (val == null) ? null : new Sized(val, length),
JavaSQLTypes.ASCII_STREAM);
}
public void whereBigDecimal(Column col, BigDecimal val)
throws SQLException {
whereObject(col, val, JavaTypes.BIGDECIMAL);
}
public void whereBigInteger(Column col, BigInteger val)
throws SQLException {
whereObject(col, val, JavaTypes.BIGINTEGER);
}
public void whereBinaryStream(Column col, InputStream val, int length)
throws SQLException {
whereObject(col, (val == null) ? null : new Sized(val, length),
JavaSQLTypes.BINARY_STREAM);
}
public void whereBlob(Column col, Blob val)
throws SQLException {
whereObject(col, val, JavaSQLTypes.BLOB);
}
public void whereBoolean(Column col, boolean val)
throws SQLException {
whereObject(col, ((val) ? Boolean.TRUE : Boolean.FALSE),
JavaTypes.BOOLEAN);
}
public void whereByte(Column col, byte val)
throws SQLException {
whereObject(col, new Byte(val), JavaTypes.BYTE);
}
public void whereBytes(Column col, byte[] val)
throws SQLException {
whereObject(col, val, JavaSQLTypes.BYTES);
}
public void whereCalendar(Column col, Calendar val)
throws SQLException {
whereObject(col, val, JavaTypes.CALENDAR);
}
public void whereChar(Column col, char val)
throws SQLException {
whereObject(col, new Character(val), JavaTypes.CHAR);
}
public void whereCharacterStream(Column col, Reader val, int length)
throws SQLException {
whereObject(col, (val == null) ? null : new Sized(val, length),
JavaSQLTypes.CHAR_STREAM);
}
public void whereClob(Column col, Clob val)
throws SQLException {
whereObject(col, val, JavaSQLTypes.CLOB);
}
public void whereDate(Column col, Date val)
throws SQLException {
whereObject(col, val, JavaTypes.DATE);
}
public void whereDate(Column col, java.sql.Date val, Calendar cal)
throws SQLException {
Object obj;
if (val == null || cal == null)
obj = val;
else
obj = new Calendard(val, cal);
whereObject(col, obj, JavaSQLTypes.SQL_DATE);
}
public void whereDouble(Column col, double val)
throws SQLException {
whereObject(col, new Double(val), JavaTypes.DOUBLE);
}
public void whereFloat(Column col, float val)
throws SQLException {
whereObject(col, new Float(val), JavaTypes.FLOAT);
}
public void whereInt(Column col, int val)
throws SQLException {
whereObject(col, val, JavaTypes.INT);
}
public void whereLong(Column col, long val)
throws SQLException {
whereObject(col, val, JavaTypes.LONG);
}
public void whereLocale(Column col, Locale val)
throws SQLException {
whereObject(col, val, JavaTypes.LOCALE);
}
public void whereNull(Column col)
throws SQLException {
whereObject(col, null, col.getJavaType());
}
public void whereNumber(Column col, Number val)
throws SQLException {
whereObject(col, val, JavaTypes.NUMBER);
}
public void whereRaw(Column col, String val)
throws SQLException {
whereObject(col, val, RAW);
}
public void whereShort(Column col, short val)
throws SQLException {
whereObject(col, new Short(val), JavaTypes.SHORT);
}
public void whereString(Column col, String val)
throws SQLException {
whereObject(col, val, JavaTypes.STRING);
}
public void whereTime(Column col, Time val, Calendar cal)
throws SQLException {
Object obj;
if (val == null || cal == null)
obj = val;
else
obj = new Calendard(val, cal);
whereObject(col, obj, JavaSQLTypes.TIME);
}
public void whereTimestamp(Column col, Timestamp val, Calendar cal)
throws SQLException {
Object obj;
if (val == null || cal == null)
obj = val;
else
obj = new Calendard(val, cal);
whereObject(col, obj, JavaSQLTypes.TIMESTAMP);
}
public void whereObject(Column col, Object val)
throws SQLException {
if (val instanceof Raw)
whereObject(col, val, RAW);
else
whereObject(col, val, col.getJavaType());
}
/**
* All set column methods delegate to this one. Set the given object
* unless this is an insert and the given column is auto-assigned.
*/
protected void setObject(Column col, Object val, int metaType,
boolean overrideDefault)
throws SQLException {
// never set auto increment columns and honor column defaults
if (_action == ACTION_INSERT) {
if (col.isAutoAssigned()) {
// OPENJPA-349: validate because this can be the only column
setValid(true);
return;
}
if (!overrideDefault && val == null
&& col.getDefaultString() != null)
return;
}
flush(col, val, metaType, true);
}
/**
* All where column methods delegate to this one.
*/
protected void whereObject(Column col, Object val, int metaType)
throws SQLException {
flush(col, val, metaType, false);
}
/**
* Flush the given value as a set or where condition.
*/
private void flush(Column col, Object val, int metaType, boolean set) {
int idx = (set) ? getSetIndex(col) : getWhereIndex(col);
_types[idx] = metaType;
if (val == null)
_vals[idx] = NULL;
else
_vals[idx] = val;
if (set || _action == ACTION_DELETE)
setValid(true);
}
/**
* Return the SQL for the operation on this row.
*/
public String getSQL(DBDictionary dict) {
if (!isValid())
return "";
if (_sql == null)
_sql = generateSQL(dict);
return _sql;
}
/**
* Generate the SQL for this row; the result of this method is cached.
*/
protected String generateSQL(DBDictionary dict) {
switch (getAction()) {
case ACTION_UPDATE:
return getUpdateSQL(dict);
case ACTION_INSERT:
return getInsertSQL(dict);
default:
return getDeleteSQL(dict);
}
}
/**
* Return the SQL for a prepared statement update on this row.
*/
private String getUpdateSQL(DBDictionary dict) {
StringBuilder buf = new StringBuilder();
buf.append("UPDATE ").append(dict.getFullName(getTable(), false)).
append(" SET ");
boolean hasVal = false;
for (int i = 0; i < _cols.length; i++) {
if (_vals[i] == null)
continue;
if (hasVal)
buf.append(", ");
buf.append(dict.getColumnDBName(_cols[i]));
if (_types[i] == RAW)
buf.append(" = ").append(_vals[i]);
else {
buf.append(" = ");
buf.append(dict.getMarkerForInsertUpdate(_cols[i], _vals[i]));
}
hasVal = true;
}
appendWhere(buf, dict);
return buf.toString();
}
/**
* Return the SQL for a prepared statement insert on this row.
*/
private String getInsertSQL(DBDictionary dict) {
StringBuilder buf = new StringBuilder();
StringBuilder vals = new StringBuilder();
buf.append("INSERT INTO ").
append(dict.getFullName(getTable(), false)).append(" (");
boolean hasVal = false;
for (int i = 0; i < _cols.length; i++) {
if (_vals[i] == null)
continue;
if (hasVal) {
buf.append(", ");
vals.append(", ");
}
buf.append(dict.getColumnDBName(_cols[i]));
if (_types[i] == RAW)
vals.append(_vals[i]);
else
vals.append(dict.getMarkerForInsertUpdate(_cols[i], _vals[i]));
hasVal = true;
}
buf.append(") VALUES (").append(vals.toString()).append(")");
return buf.toString();
}
/**
* Return the SQL for a prepared statement delete on this row.
*/
private String getDeleteSQL(DBDictionary dict) {
StringBuilder buf = new StringBuilder();
buf.append("DELETE FROM ").
append(dict.getFullName(getTable(), false));
appendWhere(buf, dict);
return buf.toString();
}
/**
* Appends the where clause onto the given sql buffer.
*/
private void appendWhere(StringBuilder buf, DBDictionary dict) {
boolean hasWhere = false;
for (int i = 0; i < _cols.length; i++) {
if (_vals[getWhereIndex(_cols[i])] == null)
continue;
if (!hasWhere)
buf.append(" WHERE ");
else
buf.append(" AND ");
// Get platform specific version column name
if (_cols[i].getVersionStrategy() != null)
buf.append(dict.toDBName(dict.getVersionColumn(_cols[i], _cols[i]
.getTableIdentifier()))).append(" = ?");
// sqlserver seems to have problems using null parameters in the
// where clause
else if (_vals[getWhereIndex(_cols[i])] == NULL)
buf.append(dict.getColumnDBName(_cols[i])).append(" IS NULL");
else if (_types[i] == RAW)
buf.append(dict.getColumnDBName(_cols[i])).append(" = ").append(_vals[i]);
else
buf.append(dict.getColumnDBName(_cols[i])).append(" = ?");
hasWhere = true;
}
}
/**
* The number of parameters that will be set for this row.
*/
public int getParameterCount() {
return _vals.length;
}
/**
* Flush the row's values to the given prepared statement.
*/
public void flush(PreparedStatement stmnt, DBDictionary dict,
JDBCStore store)
throws SQLException {
flush(stmnt, 1, dict, store);
}
/**
* Flush the row's values to the given prepared statement.
*/
public void flush(PreparedStatement stmnt, int idx, DBDictionary dict,
JDBCStore store)
throws SQLException {
// this simple method works because the SQL is always prepared
// based on the indexing of the columns in the table object -- the
// same ordering we use when storing values and meta types. skip
// updates when setting params for DELETEs; the updates are just there
// to let us eval fk constraints
int i = (getAction() == ACTION_DELETE) ? _cols.length: 0;
Column col;
Object val;
int half = _vals.length / 2;
for (; i < _vals.length; i++) {
if (_vals[i] == null)
continue;
// we don't set null params in the WHERE clause; we use the NULL
// keyword instead to satisfy sqlserver
if (_vals[i] == NULL && getAction() != ACTION_INSERT && i >= half)
continue;
// if this is an update the vals array will be 2 x the cols
// array length; it repeats for where values
if (i < _cols.length)
col = _cols[i];
else
col = _cols[i - _cols.length];
val = _vals[i];
if (val == NULL)
val = null;
if (val == null || _types[i] != RAW) {
dict.setTyped(stmnt, idx, val, col, _types[i], store);
idx++;
}
}
setFlushed(true);
}
/**
* The array value array index for the given column's value.
*/
private int getSetIndex(Column col) {
return col.getIndex();
}
/**
* The array value array index for the given column's value.
*/
private int getWhereIndex(Column col) {
return col.getIndex() + _cols.length;
}
/**
* Performs a proper deep clone.
*/
public Object clone() {
RowImpl clone = newInstance(getColumns(), getAction());
copyInto(clone, false);
return clone;
}
/**
* Return a new row.
*/
protected RowImpl newInstance(Column[] cols, int action) {
return new RowImpl(cols, action);
}
/**
* Copy all values from this row into the given one.
*
* @param whereOnly if true, only copy where conditions
*/
public void copyInto(RowImpl row, boolean whereOnly) {
int action = getAction();
int rowAction = row.getAction();
int start;
int len;
if (whereOnly) {
if (action == ACTION_INSERT || rowAction == ACTION_INSERT)
start = len = 0;
else
start = len = _vals.length / 2;
} else {
start = 0;
if (rowAction == ACTION_INSERT && action != ACTION_INSERT)
len = _vals.length / 2;
else
len = _vals.length;
}
System.arraycopy(_vals, start, row._vals, start, len);
System.arraycopy(_types, start, row._types, start, len);
if (isValid())
row.setValid(true);
}
public Object[] getVals() {
return _vals;
}
public int[] getTypes() {
return _types;
}
public boolean isFlushed() {
return _isFlushed;
}
public void setFlushed(boolean isFlushed) {
_isFlushed = isFlushed;
}
}
