org.opencms.db

类 CmsSqlBooleanClause

java.lang.Object

org.opencms.db.CmsSqlBooleanClause

所有已实现的接口:

I_CmsQueryFragment

public class CmsSqlBooleanClause
extends java.lang.Object
implements I_CmsQueryFragment

Class for generating an SQL boolean expression.

从以下版本开始:

8.0.0

构造器概要

构造器

构造器和说明
CmsSqlBooleanClause(java.lang.String operator) Creates a new boolean clause.

方法概要

方法

限定符和类型	方法和说明
CmsSqlBooleanClause	addCondition(I_CmsQueryFragment fragment) Adds an operand to the boolean expression.
static CmsSqlBooleanClause	makeAnd(I_CmsQueryFragment... fragments) Creates a boolean "AND" expression.
static CmsSqlBooleanClause	makeOr(I_CmsQueryFragment... fragments) Creates a boolean "OR" expression.
void	visit(CmsStatementBuilder builder) Generates the SQL and parameters and sends them to the statement builder .

从类继承的方法 java.lang.Object

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

构造器详细资料

CmsSqlBooleanClause

public CmsSqlBooleanClause(java.lang.String operator)

Creates a new boolean clause.

参数:

operator - the boolean operator

方法详细资料

makeAnd

public static CmsSqlBooleanClause makeAnd(I_CmsQueryFragment... fragments)

Creates a boolean "AND" expression.

参数:

fragments - the operands of the "AND"

返回:

the combined expression

makeOr

public static CmsSqlBooleanClause makeOr(I_CmsQueryFragment... fragments)

Creates a boolean "OR" expression.

参数:

fragments - the operands of the "OR"

返回:

the combined expressiong

addCondition

public CmsSqlBooleanClause addCondition(I_CmsQueryFragment fragment)

Adds an operand to the boolean expression.

参数:

fragment - the operand

返回:

this object instance

visit

public void visit(CmsStatementBuilder builder)

从接口复制的说明: I_CmsQueryFragment

Generates the SQL and parameters and sends them to the statement builder .

指定者:

visit 在接口中 I_CmsQueryFragment

参数:

builder - the statement builder

另请参阅:

I_CmsQueryFragment.visit(org.opencms.db.CmsStatementBuilder)