Package org.apache.jackrabbit.oak.spi.query.fulltext

Class FullTextExpression

java.lang.Object

org.apache.jackrabbit.oak.spi.query.fulltext.FullTextExpression

Direct Known Subclasses:

FullTextAnd, FullTextContains, FullTextOr, FullTextTerm

public abstract class FullTextExpression
extends Object

The base class for fulltext condition expression.

Field Summary

Fields

Modifier and Type	Field	Description
static int	PRECEDENCE_AND	The operator precedence for AND conditions.
static int	PRECEDENCE_OR	The operator precedence for OR conditions.
static int	PRECEDENCE_TERM	The operator precedence for terms.

Constructor Summary

Constructors

Constructor	Description
FullTextExpression()

Method Summary

Modifier and Type	Method	Description
abstract boolean	accept(FullTextVisitor v)	Let the expression call the applicable visit method of the visitor.
boolean	equals(Object other)
abstract boolean	evaluate(String value)	Evaluate whether the value matches the condition.
abstract int	getPrecedence()	Get the operator precedence.
int	hashCode()
boolean	isNot()	Whether the current FullTextExpression is a NOT condition or not.
abstract String	toString()	Get the string representation of the condition.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

PRECEDENCE_OR

public static final int PRECEDENCE_OR

The operator precedence for OR conditions.

See Also:

Constant Field Values

PRECEDENCE_AND

public static final int PRECEDENCE_AND

The operator precedence for AND conditions.

See Also:

Constant Field Values

PRECEDENCE_TERM

public static final int PRECEDENCE_TERM

The operator precedence for terms.

See Also:

Constant Field Values

Constructor Detail

FullTextExpression

public FullTextExpression()

Method Detail

getPrecedence

public abstract int getPrecedence()

Get the operator precedence.

Returns:

the precedence

evaluate

public abstract boolean evaluate(String value)

Evaluate whether the value matches the condition.

Parameters:

value - the value

Returns:

true if it matches

toString

public abstract String toString()

Get the string representation of the condition.

Overrides:

toString in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

accept

public abstract boolean accept(FullTextVisitor v)

Let the expression call the applicable visit method of the visitor.

Parameters:

v - the visitor

Returns:

true if the visit method returned true

isNot

public boolean isNot()

Whether the current FullTextExpression is a NOT condition or not. Default is false

Returns:

true if the current condition represent a NOT, false otherwise.