jodd.db.orm.sqlgen
Class DbEntitySearcher

java.lang.Object
  jodd.db.orm.sqlgen.DbEntitySearcher

All Implemented Interfaces:

DbSqlGenerator

public class DbEntitySearcher
extends java.lang.Object
implements DbSqlGenerator

Simple entity searcher. It may be applied directly on entity objects, but developers may create so-called search objects - that extends entity objects and adds more fields

Field Summary

protected DbOrmManager	dbOrmManager
protected DbEntityDescriptor	ded
protected java.lang.Object	entity
protected jodd.introspector.ClassDescriptor	entityClassDescriptor
protected java.util.Map<java.lang.String,ParameterValue>	queryParameters

Constructor Summary

DbEntitySearcher(java.lang.Object entity)

Method Summary

protected boolean	forEachField(java.lang.StringBuilder query, java.lang.reflect.Field field, java.lang.Object value) Builds condition for single non-null field.
java.lang.String	generateQuery() Generates SQL query.
java.util.Map<java.lang.String,ColumnData>	getColumnData() Returns an optional map of table and column names, used by ResultSetMapper.
java.lang.String[]	getJoinHints() Returns join hints.
java.util.Map<java.lang.String,ParameterValue>	getQueryParameters() Returns a map of SQL parameters used by generated query.

Methods inherited from class java.lang.Object

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

Field Detail

entity

protected final java.lang.Object entity

entityClassDescriptor

protected final jodd.introspector.ClassDescriptor entityClassDescriptor

dbOrmManager

protected final DbOrmManager dbOrmManager

ded

protected final DbEntityDescriptor ded

queryParameters

protected java.util.Map<java.lang.String,ParameterValue> queryParameters

Constructor Detail

DbEntitySearcher

public DbEntitySearcher(java.lang.Object entity)

Method Detail

generateQuery

public java.lang.String generateQuery()

Generates SQL query.

Specified by:

generateQuery in interface DbSqlGenerator

forEachField

protected boolean forEachField(java.lang.StringBuilder query,
                               java.lang.reflect.Field field,
                               java.lang.Object value)

Builds condition for single non-null field. By default, all String values are using like operator. All collections are using in operator. All other type are using equals.

Returns:

true if condition query is generated, false otherwise.

getQueryParameters

public java.util.Map<java.lang.String,ParameterValue> getQueryParameters()

Returns a map of SQL parameters used by generated query. Must be invoked only after the DbSqlGenerator.generateQuery(). May be null

Specified by:

getQueryParameters in interface DbSqlGenerator

getColumnData

public java.util.Map<java.lang.String,ColumnData> getColumnData()

Returns an optional map of table and column names, used by ResultSetMapper. May be null.

Specified by:

getColumnData in interface DbSqlGenerator

getJoinHints

public java.lang.String[] getJoinHints()

Returns join hints. May be null.

Specified by:

getJoinHints in interface DbSqlGenerator