Class SqlDateLiteral
- java.lang.Object
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- org.apache.calcite.sql.SqlNode
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- org.apache.calcite.sql.SqlLiteral
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- org.apache.calcite.sql.SqlAbstractDateTimeLiteral
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- org.apache.calcite.sql.SqlDateLiteral
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- All Implemented Interfaces:
java.lang.Cloneable
public class SqlDateLiteral extends SqlAbstractDateTimeLiteral
A SQL literal representing a DATE value, such asDATE '2004-10-22'
.Create values using
SqlLiteral.createDate(java.util.Calendar, org.apache.calcite.sql.parser.SqlParserPos)
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.calcite.sql.SqlLiteral
SqlLiteral.SqlSymbol
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Field Summary
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Fields inherited from class org.apache.calcite.sql.SqlAbstractDateTimeLiteral
hasTimeZone, precision
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Fields inherited from class org.apache.calcite.sql.SqlLiteral
value
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Fields inherited from class org.apache.calcite.sql.SqlNode
EMPTY_ARRAY, pos
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Constructor Summary
Constructors Constructor Description SqlDateLiteral(DateString d, SqlParserPos pos)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description SqlDateLiteral
clone(SqlParserPos pos)
Clones a SqlNode with a different position.RelDataType
createSqlType(RelDataTypeFactory typeFactory)
protected DateString
getDate()
Converts this literal to aDateString
.java.lang.String
toFormattedString()
Returns e.g.java.lang.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.apache.calcite.sql.SqlAbstractDateTimeLiteral
getPrec, getTimestamp
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Methods inherited from class org.apache.calcite.sql.SqlLiteral
accept, bigDecimalValue, booleanValue, createApproxNumeric, createBinaryString, createBinaryString, createBoolean, createCharString, createCharString, createDate, createDate, createExactNumeric, createInterval, createNegative, createNull, createSample, createSymbol, createTime, createTime, createTimestamp, createTimestamp, createUnknown, equals, equalsDeep, getKind, getMonotonicity, getStringValue, getTypeName, getValue, getValueAs, hashCode, intValue, longValue, sampleValue, signum, stringValue, symbolValue, symbolValue_, toValue, unchain, unescapeUnicode, validate, value, valueMatchesType
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Methods inherited from class org.apache.calcite.sql.SqlNode
clone, clone, cloneArray, equalDeep, equalDeep, equalsDeep, findValidOptions, getParserPosition, isA, toSqlString, toSqlString, validateExpr
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Constructor Detail
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SqlDateLiteral
SqlDateLiteral(DateString d, SqlParserPos pos)
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Method Detail
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getDate
protected DateString getDate()
Converts this literal to aDateString
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clone
public SqlDateLiteral clone(SqlParserPos pos)
Description copied from class:SqlNode
Clones a SqlNode with a different position.- Overrides:
clone
in classSqlLiteral
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toString
public java.lang.String toString()
Description copied from class:SqlAbstractDateTimeLiteral
Returns e.g.DATE '1969-07-21'
.- Specified by:
toString
in classSqlAbstractDateTimeLiteral
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toFormattedString
public java.lang.String toFormattedString()
Returns e.g. '1969-07-21'.- Specified by:
toFormattedString
in classSqlAbstractDateTimeLiteral
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createSqlType
public RelDataType createSqlType(RelDataTypeFactory typeFactory)
- Overrides:
createSqlType
in classSqlAbstractDateTimeLiteral
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unparse
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
andrightPrec
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.apache.calcite.sql.SqlWriter, int, int)
.- Overrides:
unparse
in classSqlAbstractDateTimeLiteral
- Parameters:
writer
- Target writerleftPrec
- The precedence of theSqlNode
immediately preceding this node in a depth-first scan of the parse treerightPrec
- The precedence of theSqlNode
immediately
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