| java.lang.Object
 com.caucho.db.sql.Expr
All known Subclasses: com.caucho.db.sql.UnaryExpr, com.caucho.db.sql.UnboundIdentifierExpr, com.caucho.db.sql.StringEqExpr, com.caucho.db.sql.ConcatExpr, com.caucho.db.sql.AndExpr, com.caucho.db.sql.DoubleCmpExpr, com.caucho.db.sql.InExpr, com.caucho.db.sql.RowIterateExpr, com.caucho.db.sql.DefaultExpr, com.caucho.db.sql.SubSelectExpr, com.caucho.db.sql.OidExpr, com.caucho.db.sql.BooleanLiteralExpr, com.caucho.db.sql.OrExpr, com.caucho.db.sql.BinaryExpr, com.caucho.db.sql.UnboundStarExpr, com.caucho.db.sql.BinaryLongExpr, com.caucho.db.sql.AutoIncrementExpr, com.caucho.db.sql.ParamExpr, com.caucho.db.sql.DoubleExpr, com.caucho.db.sql.FunExpr, com.caucho.db.sql.NullExpr, com.caucho.db.sql.BetweenExpr, com.caucho.db.sql.IsNullExpr, com.caucho.db.sql.LongExpr, com.caucho.db.sql.EqExpr, com.caucho.db.sql.IdExpr, com.caucho.db.sql.LikeExpr, com.caucho.db.sql.StarExpr, com.caucho.db.sql.SubSelectEvalExpr, com.caucho.db.sql.GroupResultExpr, com.caucho.db.sql.StringExpr, com.caucho.db.sql.BinaryEqExpr, com.caucho.db.sql.ColumnExpr, com.caucho.db.sql.SubSelectParamExpr, com.caucho.db.sql.ExistsEvalExpr, com.caucho.db.sql.BinaryDoubleExpr, com.caucho.db.sql.CmpExpr, com.caucho.db.sql.NotExpr, com.caucho.db.sql.NumberExpr,
| Expr | | abstract public class Expr (Code) | | |
| COST_CONSTANT | | final static long COST_CONSTANT(Code) | | |
| COST_INDEX | | final static long COST_INDEX(Code) | | |
| COST_INVALID | | final static long COST_INVALID(Code) | | |
| COST_NO_TABLE | | final static long COST_NO_TABLE(Code) | | |
| COST_SCAN | | final static long COST_SCAN(Code) | | |
| COST_UNIQUE | | final static long COST_UNIQUE(Code) | | |
| FALSE | | final public static int FALSE(Code) | | |
| L | | final protected static L10N L(Code) | | |
| TRUE | | final public static int TRUE(Code) | | |
| UNKNOWN | | final public static int UNKNOWN(Code) | | |
| createOrder | | public Order createOrder(int index)(Code) | | Returns the order.
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| evalBoolean | | public int evalBoolean(QueryContext context) throws SQLException(Code) | | Evaluates the expression as a boolean.
Parameters:
rows - the current database tuple the boolean value |
| evalDate | | public long evalDate(QueryContext context) throws SQLException(Code) | | Evaluates the expression as a date.
Parameters:
rows - the current database tuple the double value |
| evalDouble | | public double evalDouble(QueryContext context) throws SQLException(Code) | | Evaluates the expression as a double.
Parameters:
rows - the current database tuple the double value |
| evalGroup | | public void evalGroup(QueryContext context) throws SQLException(Code) | | Evaluates aggregate functions during the group phase.
Parameters:
context - the current database tuple |
| evalLong | | public long evalLong(QueryContext context) throws SQLException(Code) | | Evaluates the expression as a long.
Parameters:
rows - the current database tuple the long value |
| evalString | | public String evalString(QueryContext context) throws SQLException(Code) | | Evaluates the expression as a string.
Parameters:
rows - the current database tuple the string value |
| evalToBuffer | | public int evalToBuffer(QueryContext context, byte[] buffer, int columnType) throws SQLException(Code) | | Evaluates the expression to a buffer
Parameters:
result - the result buffer the length of the result |
| getName | | public String getName()(Code) | | Returns any column name.
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| getSQLType | | public int getSQLType()(Code) | | Returns the column type.
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| getTable | | public Table getTable()(Code) | | Returns the table.
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| getType | | public Class getType()(Code) | | Returns the expected result type of the expression.
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| initGroup | | public void initGroup(QueryContext context) throws SQLException(Code) | | Initializes aggregate functions during the group phase.
Parameters:
context - the current database tuple |
| isBinaryStream | | public boolean isBinaryStream()(Code) | | Returns true if the expression returns a binary stream.
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| isBoolean | | public boolean isBoolean()(Code) | | Returns true if the expression returns a boolean.
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| isDouble | | public boolean isDouble()(Code) | | Returns true if the expression returns a double.
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| isLong | | public boolean isLong()(Code) | | Returns true if the expression returns a long.
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| isNull | | public boolean isNull(QueryContext context) throws SQLException(Code) | | Returns true if result is null
Parameters:
rows - the current database tuple true if null |
| isSelect | | public boolean isSelect(QueryContext context) throws SQLException(Code) | | Returns true if the expression selects the row.
Parameters:
rows - the current database tuple the boolean value |
| splitAnd | | public void splitAnd(ArrayList<Expr> andProduct)(Code) | | Splits the expr into and blocks.
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