org.josql.expressions

类 InExpression

java.lang.Object

org.josql.expressions.Expression

org.josql.expressions.BinaryExpression

org.josql.expressions.InExpression

public class InExpression
extends BinaryExpression

字段概要

从类继承的字段 org.josql.expressions.BinaryExpression

left, right

构造器概要

构造器

构造器和说明
InExpression()

方法概要

限定符和类型	方法和说明
void	addItem(Expression e)
List	getItems()
void	init(Query q) Initialise the IN expression.
boolean	isAll()
boolean	isDoLike()
boolean	isIgnoreCase()
boolean	isNot()
boolean	isTrue(Object o, Query q) Return whether this expression evaulates to true.
void	setAll(boolean v)
void	setDoLike(boolean d)
void	setIgnoreCase(boolean v)
void	setItems(List items)
void	setNot(boolean v)
String	toString() Return a string representation of this expression.

从类继承的方法 org.josql.expressions.BinaryExpression

getExpectedReturnType, getLeft, getRight, getValue, hasFixedResult, setLeft, setRight

从类继承的方法 org.josql.expressions.Expression

isBracketed, setBracketed

从类继承的方法 java.lang.Object

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

构造器详细资料

InExpression

public InExpression()

方法详细资料

init

public void init(Query q)
          throws QueryParseException

Initialise the IN expression. Init the LHS and then all of the values in the brackets.

覆盖:

init 在类中 BinaryExpression

参数:

q - The Query object.

抛出:

QueryParseException - If something goes wrong with the init.

setIgnoreCase

public void setIgnoreCase(boolean v)

isIgnoreCase

public boolean isIgnoreCase()

isAll

public boolean isAll()

setAll

public void setAll(boolean v)

isDoLike

public boolean isDoLike()

setDoLike

public void setDoLike(boolean d)

setItems

public void setItems(List items)

getItems

public List getItems()

addItem

public void addItem(Expression e)

isNot

public boolean isNot()

setNot

public void setNot(boolean v)

isTrue

public boolean isTrue(Object o,
                      Query q)
               throws QueryExecutionException

Return whether this expression evaulates to true. If any of the values on RHS are Maps (keys only) or Collections then they are iterated over and checked against the LHS.

指定者:

isTrue 在类中 Expression

参数:

o - The current object to perform the expression on.

q - The Query object.

返回:

true if the LHS is "equal" (as determined by: Utilities.isEquals(Object,Object)) to any of the values in the brackets. If this is a NOT expression then the result is negated.

抛出:

QueryExecutionException - If the expression cannot be evaluated.

toString

public String toString()

Return a string representation of this expression. In the form: Expression [ NOT ] [$]IN [ LIKE ] [ ALL ] ( Expression [ , Expression* ] )

指定者:

toString 在类中 Expression

返回:

A string representation of this expression.