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Dandelion-DataTables utilities for Spring MVC based projects.
/*
* Copyright 2015 DiSiD Technologies S.L.L. All rights reserved.
*
* Project : DiSiD org.gvnix.web.datatables
* SVN Id : $Id$
*/
package org.gvnix.web.datatables.util;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.springframework.core.convert.TypeDescriptor;
import com.mysema.query.BooleanBuilder;
import com.mysema.query.types.Order;
import com.mysema.query.types.OrderSpecifier;
import com.mysema.query.types.Predicate;
import com.mysema.query.types.expr.BooleanExpression;
import com.mysema.query.types.path.PathBuilder;
public interface QuerydslUtilsBean {
public static final String OPERATOR_GOE = "goe";
public static final String OPERATOR_LOE = "loe";
public static final String OPERATOR_ISNULL = "isnull";
public static final String OPERATOR_NOTNULL = "notnull";
public static final String G_FIL_OPE_ISNULL = "global.filters.operations.all.isnull";
public static final String G_FIL_OPE_NOTNULL = "global.filters.operations.all.notnull";
public static final TypeDescriptor STRING_TYPE_DESCRIPTOR = TypeDescriptor
.valueOf(String.class);
public static final Set> NUMBER_PRIMITIVES = new HashSet>(
Arrays.asList(new Class[] { int.class, long.class, double.class,
float.class, short.class }));
public static final String OPERATOR_PREFIX = "_operator_";
public static final String SEPARATOR_FIELDS = ".";
public static final String[] FULL_DATE_PATTERNS = new String[] {
"dd-MM-yyyy HH:mm:ss", "dd/MM/yyyy HH:mm:ss",
"MM-dd-yyyy HH:mm:ss", "MM/dd/yyyy HH:mm:ss", "dd-MM-yyyy HH:mm",
"dd/MM/yyyy HH:mm", "MM-dd-yyyy HH:mm", "MM/dd/yyyy HH:mm",
"dd-MM-yyyy", "dd/MM/yyyy", "MM-dd-yyyy", "MM/dd/yyyy",
"dd-MMMM-yyyy HH:mm:ss", "dd/MMMM/yyyy HH:mm:ss",
"MMMM-dd-yyyy HH:mm:ss", "MMMM/dd/yyyy HH:mm:ss",
"dd-MMMM-yyyy HH:mm", "dd/MMMM/yyyy HH:mm", "MMMM-dd-yyyy HH:mm",
"MMMM/dd/yyyy HH:mm", "dd-MMMM-yyyy", "dd/MMMM/yyyy",
"MMMM-dd-yyyy", "MMMM/dd/yyyy" };
public static final String[] FULL_DATE_PATTERNS_WITH_TIME = new String[] {
"dd-MM-yyyy HH:mm:ss", "dd/MM/yyyy HH:mm:ss",
"MM-dd-yyyy HH:mm:ss", "MM/dd/yyyy HH:mm:ss", "dd-MM-yyyy HH:mm",
"dd/MM/yyyy HH:mm", "MM-dd-yyyy HH:mm", "MM/dd/yyyy HH:mm",
"dd-MMMM-yyyy HH:mm:ss", "dd/MMMM/yyyy HH:mm:ss",
"MMMM-dd-yyyy HH:mm:ss", "MMMM/dd/yyyy HH:mm:ss",
"dd-MMMM-yyyy HH:mm", "dd/MMMM/yyyy HH:mm", "MMMM-dd-yyyy HH:mm",
"MMMM/dd/yyyy HH:mm" };
public static final String[] FULL_DATE_PAT_WO_TIME = new String[] {
"dd-MM-yyyy", "dd/MM/yyyy", "MM-dd-yyyy", "MMMM/dd/yyyy",
"dd-MMMM-yyyy", "dd/MMMM/yyyy", "MMMM-dd-yyyy", "MMMM/dd/yyyy" };
public static final String[] DAY_AND_MONTH_DATE_PATTERNS = new String[] {
"dd-MM", "dd/MM", "MM-dd", "MM/dd", "dd-MMMM", "dd/MMMM",
"MMMM-dd", "MMMM/dd" };
public static final String[] MONTH_AND_YEAR_DATE_PATTERNS = new String[] {
"MM-yyyy", "MM/yyyy", "MMMM-yyyy", "MMMM/yyyy" };
/**
* Creates a WHERE clause by the intersection of the given search-arguments
*
* @param entity Entity {@link PathBuilder}. It represents the entity for
* class generation and alias-usage for path generation.
*
* Example: To retrieve a {@code Customer} with the first name 'Bob'
* entity must be a {@link PathBuilder} created for {@code Customer}
* class and searchArgs must contain the entry
* {@code 'firstName':'Bob'}
* @param searchArgs Search arguments to be used to create the WHERE clause.
* It can contain {@code _operator_} entries for each field that want
* to use its own operator. By default {@code EQUALS} operator is
* used.
*
* Operator entry example: {@code _operator_weight = LT} the
* expression for {@code weight} field will do a less-than value
* comparison
* @return the WHERE clause
*/
public BooleanBuilder createPredicateByAnd(PathBuilder entity,
Map searchArgs);
/**
* Creates a WHERE clause to specify given {@code fieldName} must be equal
* to one element of the provided Collection.
*
* @param entity Entity {@link PathBuilder}. It represents the entity for
* class generation and alias-usage for path generation.
*
* Example: To retrieve a {@code Customer} with the first name 'Bob'
* entity must be a {@link PathBuilder} created for {@code Customer}
* class and searchArgs must contain the entry
* {@code 'firstName':'Bob'}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param values the Set of values to find the given field name, may be null
* @return the WHERE clause
*/
public BooleanBuilder createPredicateByIn(PathBuilder entity,
String fieldName, Set values);
/**
* Utility for constructing where clause expressions on column filters.
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param fieldType Property value {@code Class}
* @param searchStr the value to find, may be null
* @return Predicate
*
*/
public Predicate createFilterExpression(PathBuilder entityPath,
String fieldName, Class fieldType, String filterStr);
/**
* Utility for constructing where clause expressions on column filters.
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param searchStr the value to find, may be null
* @return predicate
*/
public Predicate createFilterExpression(PathBuilder entityPath,
String fieldName, String filterStr);
/**
* Utility for constructing where clause expressions on generic search.
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param fieldType Property value {@code Class}
* @param searchStr the value to find, may be null
* @return Predicate
*
*/
public Predicate createSearchExpression(PathBuilder entityPath,
String fieldName, Class fieldType, String searchStr);
/**
* Utility for constructing where clause expressions on generic search.
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param searchStr the value to find, may be null
* @return predicate
*/
public Predicate createSearchExpression(PathBuilder entityPath,
String fieldName, String searchStr);
public Predicate createNumberExpressionGenerics(
PathBuilder entityPath, String fieldName, Class fieldType,
TypeDescriptor descriptor, String searchStr);
public Predicate createNumberExpressionGenericsWithOperators(
PathBuilder entityPath, String fieldName,
TypeDescriptor descriptor, String searchStr);
/**
* Return equal expression for {@code entityPath.fieldName}.
*
* Expr: {@code entityPath.fieldName eq searchObj}
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param searchObj the value to find, may be null
* @return BooleanExpression
*/
public BooleanExpression createObjectExpression(
PathBuilder entityPath, String fieldName, Object searchObj);
/**
* Return an expression for {@code entityPath.fieldName} with the
* {@code operator} or "equal" by default.
*
* Expr: {@code entityPath.fieldName eq searchObj}
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param searchObj the value to find, may be null
* @param operator the operator to use into the expression. Supported
* operators:
*
* - For all types: {@code eq}, {@code in}, {@code ne},
* {@code notIn}, {@code isNull} and {@code isNotNull}.
- For
* strings and numbers: {@code goe}, {@code gt}, {@code loe},
* {@code lt} and {@code like}.
- For booleans: {@code goe},
* {@code gt}, {@code loe} and {@code lt}.
- For dates:
* {@code goe}, {@code gt}, {@code before}, {@code loe}, {@code lt}
* and {@code after}.
*
* @return BooleanExpression
*/
public BooleanExpression createObjectExpression(
PathBuilder entityPath, String fieldName, Object searchObj,
String operator);
/**
* Return an expression for {@code entityPath.fieldName} (for Dates) with
* the {@code operator} or "equal" by default.
*
* Expr: {@code entityPath.fieldName eq searchObj}
*
* @param entityPath
* @param fieldName
* @param searchObj
* @param operator
* @param fieldType
* @return
*/
public BooleanExpression createDateExpression(
PathBuilder entityPath, String fieldName, Object searchObj,
String operator, Class fieldType);
/**
* Return an expression for {@code entityPath.fieldName} (for Numerics) with
* the {@code operator} or "equal" by default.
*
* Expr: {@code entityPath.fieldName eq searchObj}
*
* @param entityPath
* @param fieldName
* @param searchObj
* @param operator
* @param fieldType
* @return
*/
public BooleanExpression createNumericExpression(
PathBuilder entityPath, String fieldName, Object searchObj,
String operator, Class fieldType);
/**
* Return an expression for {@code entityPath.fieldName} (for Booleans) with
* the {@code operator} or "equal" by default.
*
* Expr: {@code entityPath.fieldName eq searchObj}
*
* @param entityPath
* @param fieldName
* @param searchObj
* @param operator
* @return
*/
public BooleanExpression createBooleanExpression(
PathBuilder entityPath, String fieldName, Object searchObj,
String operator);
/**
* Return an expression for {@code entityPath.fieldName} (for Strings) with
* the {@code operator} or "equal" by default.
*
* Expr: {@code entityPath.fieldName eq searchObj}
*
* @param entityPath
* @param fieldName
* @param searchObj
* @param operator
* @return
*/
public BooleanExpression createStringExpression(
PathBuilder entityPath, String fieldName, Object searchObj,
String operator);
/**
* Return equal expression for {@code entityPath.fieldName}.
*
* Expr: {@code entityPath.fieldName eq 'searchStr'}
*
* Equal operation is case insensitive.
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param searchStr the value to find, may be null
* @return BooleanExpression
*/
public BooleanExpression createStringExpression(
PathBuilder entityPath, String fieldName, String searchStr);
/**
* Return like expression for {@code entityPath.fieldName}.
*
* Expr: {@code entityPath.fieldName like ('%' + searchStr + '%')}
*
* Like operation is case insensitive.
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param searchStr the value to find, may be null
* @return BooleanExpression
*/
public BooleanExpression createStringLikeExpression(
PathBuilder entityPath, String fieldName, String searchStr);
/**
* Return like expression for {@code entityPath.fieldName}.
*
* Expr: {@code entityPath.fieldName like ('%' + searchStr + '%')}
*
* Like operation is case insensitive.
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param searchStr the value to find, may be null
* @return BooleanExpression
*/
public BooleanExpression createStringExpressionWithOperators(
PathBuilder entityPath, String fieldName, String searchStr);
/**
* Return where clause expression for number properties by casting it to
* string before check its value.
*
* Querydsl Expr:
* {@code entityPath.fieldName.stringValue() like ('%' + searchStr + '%')}
* Database operation:
* {@code str(entity.fieldName) like ('%' + searchStr + '%')}
*
* Like operation is case sensitive.
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code weight} in {@code Pet} entity, {@code age} in
* {@code Pet.owner} entity.
* @param fieldType Property value {@code Class}
* @param descriptor
* @param searchStr the value to find, may be null
* @return PredicateOperation
*/
public > BooleanExpression createNumberExpression(
PathBuilder entityPath, String fieldName, Class fieldType,
TypeDescriptor descriptor, String searchStr);
/**
* Return where clause expression for number properties by casting it to
* string before check its value.
*
* Querydsl Expr:
* {@code entityPath.fieldName.stringValue() eq searchStr
* Database operation:
* {@code str(entity.fieldName) = searchStr
*
* Like operation is case sensitive.
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code weight} in {@code Pet} entity, {@code age} in
* {@code Pet.owner} entity.
* @param fieldType Property value {@code Class}
* @ param descriptor
* @param searchStr the value to find, may be null
* @return PredicateOperation
*/
public > BooleanExpression createNumberExpressionEqual(
PathBuilder entityPath, String fieldName, Class fieldType,
TypeDescriptor descriptor, String searchStr);
/**
* Return where clause expression for date properties, trying to parse the
* value to find to date and comparing it to the value of the date; if the
* value to find cannot be parsed to date, then try to cast the value to
* string before check it.
*
*
* - If value to find {@code searchStr} can be parsed using the patterns
* dd-MM-yyyy HH:mm:ss or dd-MM-yyyy HH:mm or
* dd-MM-yyyy to {@code searchDate}, then search by specific date:
*
* - Querydsl Expr: {@code entityPath.fieldName = searchDate}
*
* - Database operation: {@code entity.fieldName = searchDate}
* - If value to find {@code searchStr} can be parsed using the pattern
* dd-MM to {@code searchDate}, then search by specific day and
* month:
*
* - Querydsl Expr:
* {@code entityPath.fieldName.dayOfMonth() = searchDate.day and entityPath.fieldName.month() = searchDate.month}
*
* - Database operation:
* {@code dayofmonth(entity.fieldName) = searchDate.day && month(entity.fieldName) = searchDate.month}
*
* - If value to find {@code searchStr} can be parsed using the pattern
* MM-aaaa to {@code searchDate}, then obtain the first day of the
* month for that year and the last day of the month for that year and check
* that value is into between theses values:
*
* - Querydsl Expr:
* {@code entityPath.fieldName.between(searchDate.firstDayOfMonth, searchDate.lastDayOfMonth)}
*
* - Database operation:
* {@code entity.fieldName between searchDate.firstDayOfMonth and searchDate.lastDayOfMonth}
*
* - If value to find cannot be parsed as date, then try to cast the value
* to string before check it:
*
* - Querydsl Expr:
* {@code entityPath.fieldName.stringValue() like ('%' + searchStr + '%')}
*
* - Database operation:
* {@code str(entity.fieldName) like ('%' + searchStr + '%')}
*
* Note that like operation is case sensitive.
*
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code weight} in {@code Pet} entity, {@code age} in
* {@code Pet.owner} entity.
* @param fieldType Property value {@code Class}
* @param searchStr the value to find, may be null
* @return PredicateOperation
*/
public > BooleanExpression createDateExpression(
PathBuilder entityPath, String fieldName, Class fieldType,
String searchStr);
/**
* Return where clause expression for date properties, trying to parse the
* value to find to date and comparing it to the value of the date; if the
* value to find cannot be parsed to date, then try to cast the value to
* string before check it.
*
*
* - If value to find {@code searchStr} can be parsed using the patterns
* dd-MM-yyyy HH:mm:ss or dd-MM-yyyy HH:mm or
* dd-MM-yyyy to {@code searchDate}, then search by specific date:
*
* - Querydsl Expr: {@code entityPath.fieldName = searchDate}
*
* - Database operation: {@code entity.fieldName = searchDate}
* - If value to find {@code searchStr} can be parsed using the pattern
* dd-MM to {@code searchDate}, then search by specific day and
* month:
*
* - Querydsl Expr:
* {@code entityPath.fieldName.dayOfMonth() = searchDate.day and entityPath.fieldName.month() = searchDate.month}
*
* - Database operation:
* {@code dayofmonth(entity.fieldName) = searchDate.day && month(entity.fieldName) = searchDate.month}
*
* - If value to find {@code searchStr} can be parsed using the pattern
* MM-aaaa to {@code searchDate}, then obtain the first day of the
* month for that year and the last day of the month for that year and check
* that value is into between theses values:
*
* - Querydsl Expr:
* {@code entityPath.fieldName.between(searchDate.firstDayOfMonth, searchDate.lastDayOfMonth)}
*
* - Database operation:
* {@code entity.fieldName between searchDate.firstDayOfMonth and searchDate.lastDayOfMonth}
*
* - If value to find cannot be parsed as date, then try to cast the value
* to string before check it:
*
* - Querydsl Expr:
* {@code entityPath.fieldName.stringValue() like ('%' + searchStr + '%')}
*
* - Database operation:
* {@code str(entity.fieldName) like ('%' + searchStr + '%')}
*
* Note that like operation is case sensitive.
*
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code weight} in {@code Pet} entity, {@code age} in
* {@code Pet.owner} entity.
* @param fieldType Property value {@code Class}
* @param searchStr the value to find, may be null
* @param datePattern
* @return PredicateOperation
*/
public > BooleanExpression createDateExpressionWithOperators(
PathBuilder entityPath, String fieldName, Class fieldType,
String searchStr, String datePattern);
/**
* Return where clause expression for non-String
* {@code entityPath.fieldName} by transforming it to text before check its
* value.
*
* Expr:
* {@code entityPath.fieldName.as(String.class) like ('%' + searchStr + '%')}
*
* Like operation is case insensitive.
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code weight} in {@code Pet} entity, {@code age} in
* {@code Pet.owner} entity.
* @param searchStr the value to find, may be null
* @param enumClass Enumeration type. Needed to enumeration values
* @return BooleanExpression
*/
@SuppressWarnings({ "rawtypes" })
public BooleanExpression createEnumExpression(
PathBuilder entityPath, String fieldName, String searchStr,
Class enumClass);
/**
* Return where clause expression for {@code Boolean} fields by transforming
* the given {@code searchStr} to {@code Boolean} before check its value.
*
* Expr: {@code entityPath.fieldName eq (TRUE | FALSE)}
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code weight} in {@code Pet} entity, {@code age} in
* {@code Pet.owner} entity.
* @param searchStr the boolean value to find, may be null. Supported string
* are: si, yes, true, on, no, false, off
* @return BooleanExpression
*/
public BooleanExpression createBooleanExpression(
PathBuilder entityPath, String fieldName, String searchStr);
/**
* Return where clause expression for {@code Boolean} fields by transforming
* the given {@code searchStr} to {@code Boolean} before check its value.
*
* Expr: {@code entityPath.fieldName eq (TRUE | FALSE)}
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code weight} in {@code Pet} entity, {@code age} in
* {@code Pet.owner} entity.
* @param searchStr the boolean value to find, may be null. Supported string
* are: si, yes, true, on, no, false, off
* @return BooleanExpression
*/
public BooleanExpression createBooleanExpressionWithOperators(
PathBuilder entityPath, String fieldName, String searchStr);
/**
* Return IN expression for {@code entityPath.fieldName}.
*
* Expr:
* entityPath.fieldName IN ( values )
*
* If values.size() > 500 its generates:
* Expr:
* (entityPath.fieldName IN ( values[0-500] ) OR [entityPath.fieldName IN (
* values[501-100]... ]))
*
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code name} in {@code Pet} entity, {@code firstName} in
* {@code Pet.owner} entity.
* @param values the Set of values to find the given field name, may be null
* @return BooleanExpression
*/
public BooleanExpression createCollectionExpression(
PathBuilder entityPath, String fieldName, Collection values);
public BooleanExpression doCreateCollectionExpression(
PathBuilder entityPath, String fieldName, Collection values);
/**
* Create an order-by-element in a Query instance
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code weight} in {@code Pet} entity, {@code age} in
* {@code Pet.owner} entity.
* @param fieldType Property value {@code Class}. Must implements
* {@link Comparable}
* @param order ascending or descending order
* @return
*/
public > OrderSpecifier createOrderSpecifier(
PathBuilder entityPath, String fieldName, Class fieldType,
Order order);
/**
* This method returns the query expression based on String expression
* user-written. Expression can be "=", ">", "<", ">=", "<=", "<>", "!=",
* "ENTRENUMERO(n1;n2)"
*
* @param entityPath Full path to entity and associations. For example:
* {@code Pet} , {@code Pet.owner}
* @param fieldName Property name in the given entity path. For example:
* {@code weight} in {@code Pet} entity, {@code age} in
* {@code Pet.owner} entity.
* @param fieldType Property value {@code Class}. Must implements
* {@link Comparable}
* @param descriptor
* @param searchStr
* @return
*/
public > BooleanExpression getNumericFilterExpression(
PathBuilder entityPath, String fieldName, Class fieldType,
TypeDescriptor descriptor, String searchStr);
/**
* Obtains the class type of the property named as {@code fieldName} of the
* entity.
*
* @param fieldName the field name.
* @param entity the entity with a property named as {@code fieldName}
* @return the class type
*/
public Class getFieldType(String fieldName, PathBuilder entity);
/**
* Obtains the class type of the property named as {@code fieldName} of the
* entity.
*
* @param fieldName the field name.
* @param entity the entity with a property named as {@code fieldName}
* @return the class type
*/
public Class getFieldType1(String fieldName, PathBuilder entity);
/**
* Obtains the descriptor of the filtered field
*
* @param fieldName
* @param entity
* @return
*/
public TypeDescriptor getTypeDescriptor(String fieldName,
PathBuilder entity);
/**
* Obtains the descriptor of the filtered field
*
* @param fieldName
* @param entityType
* @return
*/
public TypeDescriptor getTypeDescriptor(String fieldName,
Class entityType);
/**
* This method checks if the search string can be converted to a number
* using conversionService with locale.
*
* @param searchStr
* @param conversionService
* @param descriptor
* @return
*/
public boolean isNumber(String searchStr, TypeDescriptor descriptor);
}
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