net.sf.saffron.sql
Class SqlLiteral

java.lang.Object
  |
  +--net.sf.saffron.sql.SqlNode
        |
        +--net.sf.saffron.sql.SqlLiteral

public class SqlLiteral

extends SqlNode

A SqlLiteral is a constant. It is, appropriately, immutable.

Nested Class Summary

Nested classes inherited from class net.sf.saffron.sql.SqlNode

SqlNode.DatabaseMetaDataInvocationHandler

Field Summary

static SqlLiteral	False Constant for Boolean.FALSE.
static SqlLiteral	Null Constant for the SQL NULL value.
static SqlLiteral	One Constant for the Integer value 1.
static SqlLiteral	True Constant for Boolean.TRUE.
Object	value
static SqlLiteral	Zero Constant for the Integer value 0.

Constructor Summary

private	SqlLiteral() Creates the SqlLiteral representing the NULL value.
	SqlLiteral(Object value) Creates a SqlLiteral.

Method Summary

static boolean	booleanValue(SqlNode node)
Object	clone()
static SqlLiteral	create(boolean b) Creates a boolean literal.
static SqlLiteral	create(Date date)
static SqlLiteral	create(int i)
static SqlLiteral	create(Object o)
static SqlLiteral	create(Time time)
static SqlLiteral	create(Timestamp timestamp)
boolean	equals(Object obj)
private static boolean	equals(Object o1, Object o2)
SqlKind	getKind() Returns the type of node this is, or SqlKind.Other if it's nothing special.
Object	getValue() Returns the value of this literal.
int	hashCode()
static int	intValue(SqlNode node)
void	unparse(SqlWriter writer, int leftPrec, int rightPrec) Writes a SQL representation of this node to a writer.

Methods inherited from class net.sf.saffron.sql.SqlNode

cloneArray, isA, toString, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

Null

public static final SqlLiteral Null

Constant for the SQL NULL value.

True

public static final SqlLiteral True

Constant for Boolean.TRUE.

False

public static final SqlLiteral False

Constant for Boolean.FALSE.

Zero

public static final SqlLiteral Zero

Constant for the Integer value 0.

One

public static final SqlLiteral One

Constant for the Integer value 1.

value

public final Object value

Constructor Detail

SqlLiteral

public SqlLiteral(Object value)

Creates a SqlLiteral.

SqlLiteral

private SqlLiteral()

Creates the SqlLiteral representing the NULL value.

Method Detail

getKind

public SqlKind getKind()

Description copied from class: SqlNode

Returns the type of node this is, or SqlKind.Other if it's nothing special.

Overrides:

getKind in class SqlNode

Returns:

a SqlKind value, never null

getValue

public Object getValue()

Returns the value of this literal.

booleanValue

public static boolean booleanValue(SqlNode node)

create

public static SqlLiteral create(boolean b)

Creates a boolean literal.

create

public static SqlLiteral create(int i)

create

public static SqlLiteral create(Date date)

create

public static SqlLiteral create(Time time)

create

public static SqlLiteral create(Timestamp timestamp)

create

public static SqlLiteral create(Object o)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

intValue

public static int intValue(SqlNode node)

clone

public Object clone()

Specified by:

clone in class SqlNode

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.

Specified by:

unparse in class SqlNode

equals

private static boolean equals(Object o1,
                              Object o2)