モジュール org.nkjmlab.sorm4j

パッケージ org.nkjmlab.sorm4j.util.sql

クラス SelectSql

java.lang.Object

org.nkjmlab.sorm4j.util.sql.SelectSql

public final class SelectSql
extends Object

API of creates a select SQL statement.

作成者:

nkjm

ネストされたクラスの概要

ネストされたクラス

修飾子とタイプ	クラス	説明
static class	SelectSql.Builder
static class	SelectSql.Condition	Value object represents conditions of where clause or having clause.

メソッドの概要

修飾子とタイプ	メソッド	説明
static SelectSql.Condition	and(Object... conds)	Creates AND condition with concatenating arguments.
static String	as(Object src, String alias)	Creates AS alias.
static String	avg(String column)
static SelectSql.Condition	between(Object colName, Object startInclusive, Object endInclusive)
static SelectSql.Builder	builder()	Creates SelectSql.Builder object.
static String	castAs(String src, String toType)	Creates cast as.
static String	column(String tableName, String colName)
static String	columnWithTableName(String tableName, String... colNames)
static SelectSql.Condition	cond(Object left, String operator, Object right)	Creates a condition with binary operator
static SelectSql.Condition	cond(String cond)	Creates SelectSql.Condition instance.
static String	count(String column)
static String	from(String tableName)
static String	func(String functionName, Object args)	functions
static String	func(String functionName, Object... args)
static String	groupBy(Object... groups)
static SelectSql.Condition	in(Object colName, List<?> values)
static String	joinCommaAndSpace(Object... elements)
static String	joinCommaAndSpace(String... elements)
static String	joinObjects(String delimiter, Object... elements)
static String	joinSpace(Object... elements)
static String	limit(Object limit)
static String	literal(Object element)	Converts the given arguments to SQL literal.
static String	op(Object left, String operator, Object right)	Creates a string of binary operator and operands which wrapped parentheses.
static SelectSql.Condition	or(Object... conds)	Creates OR condition with concatenating arguments.
static String	orderBy(Object column)
static String	orderBy(Object... order)	Creates orderBy clause.
static String	orderByAsc(Object column)
static String	orderByDesc(Object column)
static String	quote(String str)	Returns single quoted expression.
static String	select(Object... selectClauses)
static String	select(String selectClause)
static String	selectCountFrom(String tableName)
static String	selectDistinct(Object... selectClauses)
static String	selectStarFrom(String tableName)
static String	sum(String column)
static String	where()
static String	where(String searchCondition)
static String	where(SelectSql.Condition searchCondition)
static String	wrapParentheses(Object str)
static String	wrapSingleQuote(Object str)
static String	wrapSpace(Object str)	Wrap single space

クラスから継承されたメソッド java.lang.Object

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

メソッドの詳細

builder

public static SelectSql.Builder builder()

Creates SelectSql.Builder object.

戻り値:

select

public static String select(String selectClause)

select

public static String select(Object... selectClauses)

selectDistinct

public static String selectDistinct(Object... selectClauses)

selectStarFrom

public static String selectStarFrom(String tableName)

selectCountFrom

public static String selectCountFrom(String tableName)

as

public static String as(Object src,
                        String alias)

Creates AS alias.

For example,

 as("avg(score)", "avg_score")  returns "avg(score) as avg_score"
 

castAs

public static String castAs(String src,
                            String toType)

Creates cast as. Example

 castAs("A", "DOUBLE") generates "cast (A as DOUBLE)"

パラメータ:

src -

toType -

戻り値:

columnWithTableName

public static String columnWithTableName(String tableName,
                                         String... colNames)

column

public static String column(String tableName,
                            String colName)

from

public static String from(String tableName)

where

public static String where()

where

public static String where(String searchCondition)

where

public static String where(SelectSql.Condition searchCondition)

op

public static String op(Object left,
                        String operator,
                        Object right)

Creates a string of binary operator and operands which wrapped parentheses.

Examples

 op(op("A", "/", "B"), "+", op("C", "/", "D"))

 generates

 "((A / B) + (C / D))"

パラメータ:

left -

operator -

right -

戻り値:

cond

public static SelectSql.Condition cond(String cond)

Creates SelectSql.Condition instance.

For example,

 and(cond("id=?"), "name=?")  returns "id=? and name=?"
 

cond

public static SelectSql.Condition cond(Object left,
                                       String operator,
                                       Object right)

Creates a condition with binary operator

パラメータ:

left -

operator -

right -

and

public static SelectSql.Condition and(Object... conds)

Creates AND condition with concatenating arguments.

For example,

 and("id=?", "name=?") returns "id=? and name=?"
 

パラメータ:

conds - condition in String or Condition

戻り値:

or

public static SelectSql.Condition or(Object... conds)

Creates OR condition with concatenating arguments.

For example,

 or("id=?", "name=?") returns "id=? or name=?"
 

between

public static SelectSql.Condition between(Object colName,
                                          Object startInclusive,
                                          Object endInclusive)

in

public static SelectSql.Condition in(Object colName,
                                     List<?> values)

groupBy

public static String groupBy(Object... groups)

limit

public static String limit(Object limit)

orderBy

public static String orderBy(Object... order)

Creates orderBy clause.

パラメータ:

order -

戻り値:

orderBy

public static String orderBy(Object column)

orderByAsc

public static String orderByAsc(Object column)

orderByDesc

public static String orderByDesc(Object column)

func

public static String func(String functionName,
                          Object args)

functions

func

public static String func(String functionName,
                          Object... args)

count

public static String count(String column)

sum

public static String sum(String column)

avg

public static String avg(String column)

literal

public static String literal(Object element)

Converts the given arguments to SQL literal.

パラメータ:

element -

戻り値:

quote

public static String quote(String str)

Returns single quoted expression. If it includes single quotations, they will be escaped.

パラメータ:

str -

戻り値:

joinCommaAndSpace

public static String joinCommaAndSpace(String... elements)

joinCommaAndSpace

public static String joinCommaAndSpace(Object... elements)

joinSpace

public static String joinSpace(Object... elements)

joinObjects

public static String joinObjects(String delimiter,
                                 Object... elements)

wrapParentheses

public static String wrapParentheses(Object str)

wrapSingleQuote

public static String wrapSingleQuote(Object str)

wrapSpace

public static String wrapSpace(Object str)

Wrap single space

パラメータ:

str -

戻り値: