net.sf.mmm.util.query.base.expression

Class SqlOperator.SqlOperatorLike

java.lang.Object

net.sf.mmm.util.query.base.expression.SqlOperator<String,String>

net.sf.mmm.util.query.base.expression.SqlOperator.SqlOperatorString

net.sf.mmm.util.query.base.expression.SqlOperator.SqlOperatorLike

Enclosing class:

SqlOperator<T,S>

public static class SqlOperator.SqlOperatorLike
extends SqlOperator.SqlOperatorString

Abstract base implementation of SqlOperator for SQL like match operation on String.

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.mmm.util.query.base.expression.SqlOperator

SqlOperator.SqlOperatorBetween<N extends Number>, SqlOperator.SqlOperatorContainment, SqlOperator.SqlOperatorEmptyness, SqlOperator.SqlOperatorLike, SqlOperator.SqlOperatorNumber, SqlOperator.SqlOperatorString

Field Summary

Fields

Modifier and Type	Field and Description
private char	escape
private static char	NO_ESCAPE
static String	SQL_LIKE "LIKE"
static String	SQL_NOT_LIKE "NOT LIKE"
private static char	WILDCARD_ANY
private static char	WILDCARD_SINGLE

Fields inherited from class net.sf.mmm.util.query.base.expression.SqlOperator

BETWEEN, EMPTY, EQUAL, GREATER_OR_EQUAL, GREATER_THAN, IN, LESS_OR_EQUAL, LESS_THAN, LIKE, NOT_BETWEEN, NOT_EMPTY, NOT_EQUAL, NOT_IN, NOT_LIKE

Constructor Summary

Constructors

Constructor and Description
SqlOperatorLike(boolean positive) The constructor.
SqlOperatorLike(boolean positive, char escape) The constructor.

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(String arg1, String arg2) This method evaluates this SqlOperator for the given arguments.
char	getEscape()
private boolean	isPositive()
SqlOperator<String,String>	negate()

Methods inherited from class net.sf.mmm.util.query.base.expression.SqlOperator

getSql, getType, toString

Methods inherited from class java.lang.Object

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

Field Detail

WILDCARD_SINGLE

private static final char WILDCARD_SINGLE

See Also:

Constant Field Values

WILDCARD_ANY

private static final char WILDCARD_ANY

See Also:

Constant Field Values

SQL_LIKE

public static final String SQL_LIKE

"LIKE"

See Also:

Constant Field Values

SQL_NOT_LIKE

public static final String SQL_NOT_LIKE

"NOT LIKE"

See Also:

Constant Field Values

NO_ESCAPE

private static final char NO_ESCAPE

See Also:

Constant Field Values

escape

private final char escape

Constructor Detail

SqlOperatorLike

public SqlOperatorLike(boolean positive)

The constructor.

Parameters:

positive - - true for SQL_LIKE, false for SQL_NOT_LIKE.

SqlOperatorLike

public SqlOperatorLike(boolean positive,
                       char escape)

The constructor.

Parameters:

positive - - true for SQL_LIKE, false for SQL_NOT_LIKE.

escape - - see getEscape().

Method Detail

getEscape

public char getEscape()

Returns:

the escape character.

isPositive

private boolean isPositive()

evaluate

public boolean evaluate(String arg1,
                        String arg2)

Description copied from class: SqlOperator

This method evaluates this SqlOperator for the given arguments.

Specified by:

evaluate in class SqlOperator<String,String>

Parameters:

arg1 - is the first argument.

arg2 - is the second argument.

Returns:

the result of the SqlOperator applied to the given arguments.

negate

public SqlOperator<String,String> negate()

Specified by:

negate in class SqlOperator<String,String>

Returns:

the negation of this CompareOperator that evaluates to the negated result.