org.apache.calcite.sql

Enum SqlCollation.Coercibility

java.lang.Object

java.lang.Enum<SqlCollation.Coercibility>

org.apache.calcite.sql.SqlCollation.Coercibility

All Implemented Interfaces:

Serializable, Comparable<SqlCollation.Coercibility>

Enclosing class:

SqlCollation

public static enum SqlCollation.Coercibility
extends Enum<SqlCollation.Coercibility>

A <character value expression> consisting of a column reference has the coercibility characteristic Implicit, with collating sequence as defined when the column was created. A <character value expression> consisting of a value other than a column (e.g., a host variable or a literal) has the coercibility characteristic Coercible, with the default collation for its character repertoire. A <character value expression> simply containing a <collate clause> has the coercibility characteristic Explicit, with the collating sequence specified in the <collate clause>.

See Also:

SQL:1999 Part 2 Section 4.2.3

Enum Constant Summary

Enum Constants

Enum Constant and Description
COERCIBLE
EXPLICIT Strongest coercibility.
IMPLICIT
NONE Weakest coercibility.

Method Summary

Modifier and Type	Method and Description
static SqlCollation.Coercibility	valueOf(String name) Returns the enum constant of this type with the specified name.
static SqlCollation.Coercibility[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

EXPLICIT

public static final SqlCollation.Coercibility EXPLICIT

Strongest coercibility.

IMPLICIT

public static final SqlCollation.Coercibility IMPLICIT

COERCIBLE

public static final SqlCollation.Coercibility COERCIBLE

NONE

public static final SqlCollation.Coercibility NONE

Weakest coercibility.

Method Detail

values

public static SqlCollation.Coercibility[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (SqlCollation.Coercibility c : SqlCollation.Coercibility.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static SqlCollation.Coercibility valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null