org.opencms.db
Class CmsSqlBooleanClause

java.lang.Object
  org.opencms.db.CmsSqlBooleanClause

All Implemented Interfaces:

I_CmsQueryFragment

public class CmsSqlBooleanClause
extends Object
implements I_CmsQueryFragment

Class for generating an SQL boolean expression.

Since:

8.0.0

Constructor Summary

CmsSqlBooleanClause(String operator)
Creates a new boolean clause.

Method Summary

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 .

Methods inherited from class java.lang.Object

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

Constructor Detail

CmsSqlBooleanClause

public CmsSqlBooleanClause(String operator)

Creates a new boolean clause.

Parameters:

operator - the boolean operator

Method Detail

makeAnd

public static CmsSqlBooleanClause makeAnd(I_CmsQueryFragment... fragments)

Creates a boolean "AND" expression.

Parameters:

fragments - the operands of the "AND"

Returns:

the combined expression

makeOr

public static CmsSqlBooleanClause makeOr(I_CmsQueryFragment... fragments)

Creates a boolean "OR" expression.

Parameters:

fragments - the operands of the "OR"

Returns:

the combined expressiong

addCondition

public CmsSqlBooleanClause addCondition(I_CmsQueryFragment fragment)

Adds an operand to the boolean expression.

Parameters:

fragment - the operand

Returns:

this object instance

visit

public void visit(CmsStatementBuilder builder)

Description copied from interface: I_CmsQueryFragment

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

Specified by:

visit in interface I_CmsQueryFragment

Parameters:

builder - the statement builder

See Also:

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