Package com.github.vlachenal.sql

Class SQL

java.lang.Object

com.github.vlachenal.sql.SQL

public final class SQL
extends java.lang.Object

SQL request builder entry point and utility methods

Since:

0.1

Method Summary

Modifier and Type	Method	Description
static ClausesBuilder	clauses()	Initialize a new clauses builder
static <T> ClausesBuilder	clauses(java.lang.String column, ClauseMaker clause, T value)	Initialize a new clauses builder and add the first clause if vaue is valid
static <T> ClausesBuilder	clauses(java.lang.String column, ClauseMaker clause, T value, ValueChecker<T> checker)	Initialize a new clauses builder and add the first clause if vaue is valid
static <T> ClausesBuilder	clauses(java.lang.String column, ClauseMaker clause, T value1, T value2)	Initialize a new clauses builder and add the first clause if vaue is valid
static <T> ClausesBuilder	clauses(java.lang.String column, ClauseMaker clause, T value1, T value2, ValueChecker<T> checker)	Initialize a new clauses builder and add the first clause if vaue is valid
static DeleteBuilder	delete(java.lang.String table)	Initialize a new delete builder
static java.lang.String	formatText(java.lang.Object value)	Format value for text column adding quote before and after value. Object will be cast into String with toString() method.
static java.util.List<java.lang.String>	formatText(java.util.Collection<?> values)	Format values for text column adding quote before and after value. Object will be cast into String with toString() method.
static <T> boolean	isValidValue(T value)	Check if value is null or empty (for String and Collection). This is the value ValueChecker which is used ot check value validity.
static SelectBuilder	select()	Initialize a new select builder
static <T> java.lang.String	toSQLList(java.util.Collection<T> values)	Format value collection for SQL query (i.e for IN clause)
static UpdateBuilder	update(java.lang.String table)	Initialize a new update builder

Methods inherited from class java.lang.Object

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

Method Detail

select

public static SelectBuilder select()

Initialize a new select builder

Returns:

the new SelectBuilder

update

public static UpdateBuilder update(java.lang.String table)

Initialize a new update builder

Parameters:

table - the table to update

Returns:

the new UpdateBuilder

delete

public static DeleteBuilder delete(java.lang.String table)

Initialize a new delete builder

Parameters:

table - the table to delete

Returns:

the new DeleteBuilder

clauses

public static ClausesBuilder clauses()

Initialize a new clauses builder

Returns:

the new ClausesBuilder

clauses

public static <T> ClausesBuilder clauses(java.lang.String column,
                                         ClauseMaker clause,
                                         T value)

Initialize a new clauses builder and add the first clause if vaue is valid

Type Parameters:

T - the value type

Parameters:

column - the column

clause - the clause maker

value - the value

Returns:

the new ClausesBuilder

clauses

public static <T> ClausesBuilder clauses(java.lang.String column,
                                         ClauseMaker clause,
                                         T value,
                                         ValueChecker<T> checker)

Initialize a new clauses builder and add the first clause if vaue is valid

Type Parameters:

T - the value type

Parameters:

column - the column

clause - the clause maker

value - the value

checker - the value checker to use

Returns:

the new ClausesBuilder

clauses

public static <T> ClausesBuilder clauses(java.lang.String column,
                                         ClauseMaker clause,
                                         T value1,
                                         T value2)

Initialize a new clauses builder and add the first clause if vaue is valid

Type Parameters:

T - the value type

Parameters:

column - the column

clause - the clause maker

value1 - the first value

value2 - the second value

Returns:

the new ClausesBuilder

clauses

public static <T> ClausesBuilder clauses(java.lang.String column,
                                         ClauseMaker clause,
                                         T value1,
                                         T value2,
                                         ValueChecker<T> checker)

Initialize a new clauses builder and add the first clause if vaue is valid

Type Parameters:

T - the value type

Parameters:

column - the column

clause - the clause maker

value1 - the first value

value2 - the second value

checker - the value checker to use

Returns:

the new ClausesBuilder

formatText

public static java.lang.String formatText(java.lang.Object value)

Format value for text column adding quote before and after value.
Object will be cast into String with toString() method.

Parameters:

value - the value

Returns:

the formatter value

formatText

public static java.util.List<java.lang.String> formatText(java.util.Collection<?> values)

Format values for text column adding quote before and after value.
Object will be cast into String with toString() method.

Parameters:

values - the values

Returns:

the formatter values

toSQLList

public static <T> java.lang.String toSQLList(java.util.Collection<T> values)

Format value collection for SQL query (i.e for IN clause)

Type Parameters:

T - the collection type

Parameters:

values - the values

Returns:

the SQL list

isValidValue

public static <T> boolean isValidValue(T value)

Check if value is null or empty (for String and Collection).
This is the value ValueChecker which is used ot check value validity.

Type Parameters:

T - the value type

Parameters:

value - the value

Returns:

true is value is not null, false otherwise