com.haulmont.cuba.core.global

Class QueryTransformerRegex

java.lang.Object

com.haulmont.cuba.core.global.QueryParserRegex

com.haulmont.cuba.core.global.QueryTransformerRegex

All Implemented Interfaces:

QueryParser, QueryTransformer

public class QueryTransformerRegex
extends QueryParserRegex
implements QueryTransformer

Implementation of QueryTransformer based on regular expressions.

Nested Class Summary

Nested classes/interfaces inherited from interface com.haulmont.cuba.core.global.QueryParser

QueryParser.QueryPath

Field Summary

Fields inherited from class com.haulmont.cuba.core.global.QueryParserRegex

COND_PATTERN_REGEX, DISTINCT_PATTERN, DISTINCT_PATTERN_REGEX, ENTITY_PATH_ALIAS, ENTITY_PATH_PATTERN_REGEX, ENTITY_PATTERN, ENTITY_PATTERN_REGEX, EP_ALIAS, FEP_ALIAS, FEP_ENTITY, FROM_ENTITY_PATTERN, LAST_CLAUSE_PATTERN, LAST_CLAUSE_PATTERN_REGEX, OR_PATTERN, OR_PATTERN_REGEX, ORDER_BY_PATTERN, ORDER_BY_PATTERN_REGEX, PARAM_PATTERN, PARAM_PATTERN_REGEX, QS_ALIAS, QUERY_START_PATTERN, QUERY_START_PATTERN_REGEX, SELECT_DISTINCT_PATTERN, SELECT_DISTINCT_PATTERN_REGEX, source, WHERE_PATTERN, WHERE_PATTERN_REGEX

Fields inherited from interface com.haulmont.cuba.core.global.QueryTransformer

ALIAS_PLACEHOLDER, NAME

Fields inherited from interface com.haulmont.cuba.core.global.QueryParser

NAME

Constructor Summary

Constructors

Constructor and Description
QueryTransformerRegex(java.lang.String source)

Method Summary

Modifier and Type	Method and Description
void	addDistinct() Replaces 'select' with 'select distinct'.
void	addEntityInGroupBy(java.lang.String entityAlias) Adds @param entityAlias to 'group by' clause
void	addFirstSelectionSource(java.lang.String selection)
void	addJoinAndWhere(java.lang.String join, java.lang.String where) Adds 'join' and 'where' clauses.
void	addJoinAsIs(java.lang.String join) Adds 'join' clause
void	addOrderByIdIfNotExists(java.lang.String idProperty) Adds 'order by' clause if it doesn't exists
void	addWhere(java.lang.String where) Adds 'where' clause replacing entity alias
void	addWhereAsIs(java.lang.String where) Adds 'where' clause
java.util.Set<java.lang.String>	getAddedParams() Get parameter names found during transformation
java.lang.String	getResult() Get buffer
void	handleCaseInsensitiveParam(java.lang.String paramName)
void	mergeWhere(java.lang.String query) Adds 'where' clause from the query provided.
boolean	removeDistinct() Replaces 'select distinct' with 'select'.
void	removeOrderBy() Removes 'order by' clause
void	replaceEntityName(java.lang.String newName) Replace main entity name, e.g.
void	replaceInCondition(java.lang.String paramName)
void	replaceOrderBy(boolean desc, java.lang.String... properties) Adds or replaces 'order by' clause
void	replaceWithCount() Replaces select e.f1, e.f2, ... clause with select count(e) ...
void	replaceWithSelectEntityVariable(java.lang.String selectEntityVariable) Replaces select e from ... clause with select 'selectEntityVariable' from ...
void	replaceWithSelectId() Replaces select e from ... clause with select e.id from ...
void	replaceWithSelectId(java.lang.String pkName) Replaces select e from ... clause with select e.pkName from ...
void	reset() Reset internal buffer

Methods inherited from class com.haulmont.cuba.core.global.QueryParserRegex

getAllEntityNames, getEntityAlias, getEntityAlias, getEntityName, getOriginalEntityName, getOriginalEntityPath, getParamNames, getQueryPaths, hasIsNotNullCondition, hasIsNullCondition, isCollectionOriginalEntitySelect, isEntitySelect, isParameterInCondition, isQueryWithJoins

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.haulmont.cuba.core.global.QueryTransformer

replaceIsNullStatements

Methods inherited from interface com.haulmont.cuba.core.global.QueryParser

isParameterUsedInAnyCondition

Constructor Detail

QueryTransformerRegex

public QueryTransformerRegex(java.lang.String source)

Method Detail

addWhere

public void addWhere(java.lang.String where)

Description copied from interface: QueryTransformer

Adds 'where' clause replacing entity alias

Specified by:

addWhere in interface QueryTransformer

addWhereAsIs

public void addWhereAsIs(java.lang.String where)

Description copied from interface: QueryTransformer

Adds 'where' clause

Specified by:

addWhereAsIs in interface QueryTransformer

addJoinAsIs

public void addJoinAsIs(java.lang.String join)

Description copied from interface: QueryTransformer

Adds 'join' clause

Specified by:

addJoinAsIs in interface QueryTransformer

addJoinAndWhere

public void addJoinAndWhere(java.lang.String join,
                            java.lang.String where)

Description copied from interface: QueryTransformer

Adds 'join' and 'where' clauses. Replaces alias in 'join' but doesn't replace it in 'where'

Specified by:

addJoinAndWhere in interface QueryTransformer

addFirstSelectionSource

public void addFirstSelectionSource(java.lang.String selection)

Specified by:

addFirstSelectionSource in interface QueryTransformer

mergeWhere

public void mergeWhere(java.lang.String query)

Description copied from interface: QueryTransformer

Adds 'where' clause from the query provided. Replaces entity alias

Specified by:

mergeWhere in interface QueryTransformer

replaceWithCount

public void replaceWithCount()

Description copied from interface: QueryTransformer

Replaces select e.f1, e.f2, ... clause with select count(e) ...

Specified by:

replaceWithCount in interface QueryTransformer

replaceWithSelectId

public void replaceWithSelectId()

Description copied from interface: QueryTransformer

Replaces select e from ... clause with select e.id from ...

Specified by:

replaceWithSelectId in interface QueryTransformer

replaceWithSelectId

public void replaceWithSelectId(java.lang.String pkName)

Description copied from interface: QueryTransformer

Replaces select e from ... clause with select e.pkName from ...

Specified by:

replaceWithSelectId in interface QueryTransformer

replaceWithSelectEntityVariable

public void replaceWithSelectEntityVariable(java.lang.String selectEntityVariable)

Description copied from interface: QueryTransformer

Replaces select e from ... clause with select 'selectEntityVariable' from ...

Specified by:

replaceWithSelectEntityVariable in interface QueryTransformer

removeDistinct

public boolean removeDistinct()

Description copied from interface: QueryTransformer

Replaces 'select distinct' with 'select'.

Specified by:

removeDistinct in interface QueryTransformer

Returns:

true if 'distinct' was really removed, false if there was no 'distinct' in the query

addDistinct

public void addDistinct()

Description copied from interface: QueryTransformer

Replaces 'select' with 'select distinct'.

Specified by:

addDistinct in interface QueryTransformer

addOrderByIdIfNotExists

public void addOrderByIdIfNotExists(java.lang.String idProperty)

Description copied from interface: QueryTransformer

Adds 'order by' clause if it doesn't exists

Specified by:

addOrderByIdIfNotExists in interface QueryTransformer

replaceOrderBy

public void replaceOrderBy(boolean desc,
                           java.lang.String... properties)

Description copied from interface: QueryTransformer

Adds or replaces 'order by' clause

Specified by:

replaceOrderBy in interface QueryTransformer

addEntityInGroupBy

public void addEntityInGroupBy(java.lang.String entityAlias)

Description copied from interface: QueryTransformer

Adds @param entityAlias to 'group by' clause

Specified by:

addEntityInGroupBy in interface QueryTransformer

removeOrderBy

public void removeOrderBy()

Description copied from interface: QueryTransformer

Removes 'order by' clause

Specified by:

removeOrderBy in interface QueryTransformer

replaceEntityName

public void replaceEntityName(java.lang.String newName)

Description copied from interface: QueryTransformer

Replace main entity name, e.g. "select d ref$Driver d" with "select d ref$ExtDriver d"

Specified by:

replaceEntityName in interface QueryTransformer

reset

public void reset()

Description copied from interface: QueryTransformer

Reset internal buffer

Specified by:

reset in interface QueryTransformer

getResult

public java.lang.String getResult()

Description copied from interface: QueryTransformer

Get buffer

Specified by:

getResult in interface QueryTransformer

getAddedParams

public java.util.Set<java.lang.String> getAddedParams()

Description copied from interface: QueryTransformer

Get parameter names found during transformation

Specified by:

getAddedParams in interface QueryTransformer

handleCaseInsensitiveParam

public void handleCaseInsensitiveParam(java.lang.String paramName)

Specified by:

handleCaseInsensitiveParam in interface QueryTransformer

replaceInCondition

public void replaceInCondition(java.lang.String paramName)

Specified by:

replaceInCondition in interface QueryTransformer