com.jdc.rdb.sql.dml.clause
Class Comparison

java.lang.Object
  |
  +--com.jdc.lang.Object
        |
        +--com.jdc.rdb.sql.dml.clause.Comparison

public final class Comparison

extends Object

Comparison provides a list of enumerated types for a Where clause comparison operator. Valid Where clause comparison operators are:

• = - Equal.
• <> - Not equal.
• < - Less than.
• > - Greater than.
• <= - Less than or equal.
• >= - Greater than or equal.

Version:

2.0

Author:

Jay Damon

See Also:

Where

Field Summary

static Comparison	EQUAL The Where clause equal comparison operator (=).
static Comparison	GREATER_THAN The Where clause greater than comparison operator (>).
static Comparison	GREATER_THAN_OR_EQUAL The Where clause greater than or equal comparison operator (>=).
static Comparison	LESS_THAN The Where clause less than comparison operator (<).
static Comparison	LESS_THAN_OR_EQUAL The Where clause less than or equal comparison operator (<=).
static Comparison	NOT_EQUAL The Where clause not equal comparison operator (<>).

Fields inherited from class com.jdc.lang.Object

string

Method Summary

boolean	equals(Object object) Compares this Comparison operator object to the specified object.
String	toString() Returns a String representation of this Comparison object.
static Comparison	valueOf(String comparisonOperator) Returns a Comparison operator representation of this String value.

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

EQUAL

public static final Comparison EQUAL

The Where clause equal comparison operator (=).

NOT_EQUAL

public static final Comparison NOT_EQUAL

The Where clause not equal comparison operator (<>).

LESS_THAN

public static final Comparison LESS_THAN

The Where clause less than comparison operator (<).

GREATER_THAN

public static final Comparison GREATER_THAN

The Where clause greater than comparison operator (>).

LESS_THAN_OR_EQUAL

public static final Comparison LESS_THAN_OR_EQUAL

The Where clause less than or equal comparison operator (<=).

GREATER_THAN_OR_EQUAL

public static final Comparison GREATER_THAN_OR_EQUAL

The Where clause greater than or equal comparison operator (>=).

Method Detail

equals

public boolean equals(Object object)

Compares this Comparison operator object to the specified object.

Overrides:

equals in class Object

Returns:

True if a specified object is equal to this Comparison operator object.
False if the specified object is not equal to this Comparison operator object.

toString

public String toString()

Returns a String representation of this Comparison object.

Overrides:

toString in class Object

Returns:

A String representation of this Comparison object.

valueOf

public static Comparison valueOf(String comparisonOperator)

Returns a Comparison operator representation of this String value.

Returns:

A Comparison operator representation of this String value.