Package com.github.collinalpert.lambda2sql

Class Lambda2Sql

java.lang.Object

com.github.collinalpert.lambda2sql.Lambda2Sql

public class Lambda2Sql
extends Object

A utility class for converting java lambdas to SQL.

Constructor Summary

Constructors

Constructor	Description
Lambda2Sql()

Method Summary

Modifier and Type	Method	Description
static String	toSql(SerializedFunctionalInterface functionalInterface)
static String	toSql(SerializedFunctionalInterface functionalInterface, String tableName)
static String	toSql(SerializedFunctionalInterface functionalInterface, String tableName, boolean withBackticks)	Converts a lambda expression to SQL.

Methods inherited from class java.lang.Object

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

Constructor Details

Lambda2Sql

public Lambda2Sql()

Method Details

toSql

public static String toSql(SerializedFunctionalInterface functionalInterface, String tableName, boolean withBackticks)

Converts a lambda expression to SQL.

person -> person.getAge() > 50 && person.isActive() 

Becomes a string:

"age > 50 AND active" 

Supported operators: >,>=,<,<=,=,!=,&&,||,!

Parameters:

functionalInterface - A FunctionalInterface lambda to convert.

tableName - The table name which the column belongs to. This will explicitly reference the column. It is optional to specify this.

withBackticks - Specifies if the table and the column name should be escaped with backticks. The default behavior is true.

Returns:

A String describing the SQL where condition.

toSql

public static String toSql(SerializedFunctionalInterface functionalInterface, String tableName)

toSql

public static String toSql(SerializedFunctionalInterface functionalInterface)