Class SqlDateLiteral

  extended by org.eigenbase.sql.SqlNode
      extended by org.eigenbase.sql.SqlLiteral
          extended by org.eigenbase.sql.SqlAbstractDateTimeLiteral
              extended by org.eigenbase.sql.SqlDateLiteral
All Implemented Interfaces:

public class SqlDateLiteral
extends SqlAbstractDateTimeLiteral

A SQL literal representing a DATE value, such as DATE '2004-10-22'.

Create values using SqlLiteral.createDate(java.util.Calendar, org.eigenbase.sql.parser.SqlParserPos).

$Id: //open/dev/farrago/src/org/eigenbase/sql/ $

Nested Class Summary
Nested classes/interfaces inherited from class org.eigenbase.sql.SqlLiteral
Field Summary
Fields inherited from class org.eigenbase.sql.SqlAbstractDateTimeLiteral
formatString, hasTimeZone, precision
Fields inherited from class org.eigenbase.sql.SqlLiteral
Fields inherited from class org.eigenbase.sql.SqlNode
Constructor Summary
SqlDateLiteral(Calendar d, SqlParserPos pos)
SqlDateLiteral(Calendar d, String format, SqlParserPos pos)
Method Summary
 SqlNode clone(SqlParserPos pos)
          Clones a SqlNode with a different position.
 RelDataType createSqlType(RelDataTypeFactory typeFactory)
 String toFormattedString()
          Returns e.g.
 String toString()
          Returns e.g.
 void unparse(SqlWriter writer, int leftPrec, int rightPrec)
          Writes a SQL representation of this node to a writer.
Methods inherited from class org.eigenbase.sql.SqlAbstractDateTimeLiteral
getCal, getDate, getPrec, getTime, getTimestamp, getTimeZone, toValue
Methods inherited from class org.eigenbase.sql.SqlLiteral
accept, bigDecimalValue, booleanValue, createApproxNumeric, createBinaryString, createBinaryString, createBoolean, createCharString, createCharString, createDate, createExactNumeric, createInterval, createNegative, createNull, createSample, createSymbol, createTime, createTimestamp, createUnknown, equals, equalsDeep, getKind, getMonotonicity, getStringValue, getTypeName, getValue, hashCode, intValue, longValue, sampleValue, stringValue, symbolValue, unescapeUnicode, validate, valueMatchesType
Methods inherited from class org.eigenbase.sql.SqlNode
clone, cloneArray, equalDeep, findValidOptions, getParserPosition, isA, toSqlString, toSqlString, validateExpr
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail


SqlDateLiteral(Calendar d,
               SqlParserPos pos)


SqlDateLiteral(Calendar d,
               String format,
               SqlParserPos pos)
Method Detail


public SqlNode clone(SqlParserPos pos)
Description copied from class: SqlNode
Clones a SqlNode with a different position.

clone in class SqlLiteral


public String toString()
Description copied from class: SqlAbstractDateTimeLiteral
Returns e.g. DATE '1969-07-21'.

Specified by:
toString in class SqlAbstractDateTimeLiteral


public String toFormattedString()
Returns e.g. '1969-07-21'.

Specified by:
toFormattedString in class SqlAbstractDateTimeLiteral


public RelDataType createSqlType(RelDataTypeFactory typeFactory)
createSqlType in class SqlAbstractDateTimeLiteral


public void unparse(SqlWriter writer,
                    int leftPrec,
                    int rightPrec)
Description copied from class: SqlNode
Writes a SQL representation of this node to a writer.

The leftPrec and rightPrec parameters give us enough context to decide whether we need to enclose the expression in parentheses. For example, we need parentheses around "2 + 3" if preceded by "5 *". This is because the precedence of the "*" operator is greater than the precedence of the "+" operator.

The algorithm handles left- and right-associative operators by giving them slightly different left- and right-precedence.

If SqlWriter.isAlwaysUseParentheses() is true, we use parentheses even when they are not required by the precedence rules.

For the details of this algorithm, see SqlCall.unparse(org.eigenbase.sql.SqlWriter, int, int).

unparse in class SqlAbstractDateTimeLiteral
writer - Target writer
leftPrec - The precedence of the SqlNode immediately preceding this node in a depth-first scan of the parse tree
rightPrec - The precedence of the SqlNode immediately