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panda.dao.query.DataQuery Maven / Gradle / Ivy
package panda.dao.query;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import panda.dao.entity.Entity;
import panda.dao.entity.EntityField;
import panda.dao.entity.EntityJoin;
import panda.dao.query.Filter.ComboFilter;
import panda.dao.query.Filter.ReferFilter;
import panda.dao.query.Filter.SimpleFilter;
import panda.dao.query.Filter.ValueFilter;
import panda.lang.Arrays;
import panda.lang.Asserts;
import panda.lang.Collections;
import panda.lang.Logical;
import panda.lang.Objects;
import panda.lang.Order;
import panda.lang.Strings;
/**
*
*
* @param table
*/
public class DataQuery implements Query, Cloneable {
protected Object target;
protected boolean distinct;
protected long start;
protected long limit;
protected Map columns;
protected Map joins;
protected ComboFilter filters;
/** filter stack */
protected List stack;
protected Map orders;
protected List groups;
protected static final int HAS_INCLUDES = 0x01;
protected static final int HAS_EXCLUDES = 0x02;
protected Integer flags;
/**
* constructor
* @param type query type
*/
public DataQuery(Class type) {
this.target = type;
}
/**
* constructor
* @param entity query entity
*/
public DataQuery(Entity entity) {
this.target = entity;
}
/**
* @param target query target
*/
public DataQuery(String target) {
this.target = target;
}
/**
* @param query query to clone
*/
public DataQuery(Query query) {
target = query.getTarget();
start = query.getStart();
limit = query.getLimit();
distinct = query.isDistinct();
if (query.hasColumns()) {
columns = new LinkedHashMap();
columns.putAll(query.getColumns());
}
if (query.hasJoins()) {
joins = new LinkedHashMap();
joins.putAll(query.getJoins());
}
if (query.hasFilters()) {
// shadow clone
filters = query.getFilters().clone();
}
if (query.hasOrders()) {
orders = new LinkedHashMap();
orders.putAll(query.getOrders());
}
if (query.hasGroups()) {
groups = new ArrayList();
groups.addAll(query.getGroups());
}
}
/**
* @return the target
*/
@Override
public Object getTarget() {
return target;
}
/**
* @return the entity
*/
@Override
@SuppressWarnings("unchecked")
public Entity getEntity() {
return target instanceof Entity ? (Entity)target : null;
}
/**
* @param entity the entity to set
*/
public void setEntity(Entity entity) {
this.target = entity;
}
/**
* @return the type
*/
@Override
@SuppressWarnings("unchecked")
public Class getType() {
if (target instanceof Entity) {
return ((Entity)target).getType();
}
if (target instanceof Class) {
return (Class)target;
}
return (Class)Map.class;
}
/**
* @return the table
*/
@Override
@SuppressWarnings("unchecked")
public String getTable() {
if (target instanceof Entity) {
return ((Entity)target).getView();
}
if (target instanceof String) {
return (String)target;
}
return null;
}
/**
* clear
* @return this
*/
public DataQuery clear() {
start = 0;
limit = 0;
if (columns != null) {
columns.clear();
};
if (joins != null) {
joins.clear();
}
if (filters != null) {
filters.setLogical(Logical.AND);
filters.clear();
}
if (orders != null) {
orders.clear();
};
if (groups != null) {
groups.clear();
};
return this;
}
//---------------------------------------------------------------
//
/**
* @return the distinct
*/
@Override
public boolean isDistinct() {
return distinct;
}
/**
* @param distinct the distinct to set
*/
public void setDistinct(boolean distinct) {
this.distinct = distinct;
}
//---------------------------------------------------------------
// columns
//
/**
* @return true if the columns is not empty
*/
@Override
public boolean hasColumns() {
return columns != null && !columns.isEmpty();
}
/**
* @return the columns
*/
@Override
public Map getColumns() {
return columns;
}
/**
* @param name column name
* @return column value
*/
@Override
public String getColumn(String name) {
if (columns == null) {
return null;
}
return columns.get(name);
}
protected int flags() {
if (flags == null) {
flags = 0;
if (columns != null && !columns.isEmpty()) {
Collection vs = columns.values();
for (String v : vs) {
if ("".equals(v)) {
flags |= HAS_INCLUDES;
}
if (v == null) {
flags |= HAS_EXCLUDES;
}
}
}
}
return flags;
}
/**
* @return true if has included columns
*/
protected boolean hasIncludes() {
return (flags() & HAS_INCLUDES) != 0;
}
/**
* @return true if has excluded columns
*/
protected boolean hasExcludes() {
return (flags() & HAS_EXCLUDES) != 0;
}
/**
* set column value, the value will be auto modified to ( value )
* @param name column name
* @param value column value
* @return this
*/
public DataQuery column(String name, String value) {
return rawColumn(name, '(' + value + ')');
}
/**
* @param name column name
* @param value column value
* @return this
*/
private DataQuery rawColumn(String name, String value) {
setColumn(name, value);
flags = null;
return this;
}
/**
* @param name the field name to include
* @param value the column value
* @return this
*/
private DataQuery setColumn(String name, String value) {
Asserts.notEmpty(name);
if (columns == null) {
columns = new LinkedHashMap();
}
columns.put(name, value);
return this;
}
/**
* include column
* @param name column name
*/
private void incColumn(String name) {
String c = getColumn(name);
setColumn(name, Strings.defaultString(c, ""));
}
/**
* exclude column
* @param name column name
*/
private void excColumn(String name) {
setColumn(name, null);
}
/**
* include primary keys
* @return this
*/
public DataQuery includePrimayKeys() {
Entity entity = getEntity();
for (EntityField ef : entity.getPrimaryKeys()) {
incColumn(ef.getName());
}
flags = null;
return this;
}
/**
* include not primary keys
* @return this
*/
public DataQuery includeNotPrimaryKeys() {
Entity entity = getEntity();
for (EntityField ef : entity.getFields()) {
if (!ef.isPrimaryKey()) {
incColumn(ef.getName());
}
}
flags = null;
return this;
}
/**
* @return this
*/
public DataQuery includeAll() {
Entity entity = getEntity();
for (EntityField ef : entity.getFields()) {
incColumn(ef.getName());
}
flags = null;
return this;
}
/**
* @param names include name
* @return this
*/
public DataQuery include(String... names) {
return include(Arrays.asList(names));
}
/**
* @param names include name
* @return this
*/
public DataQuery include(Collection names) {
if (Collections.isNotEmpty(names)) {
for (String name : names) {
incColumn(name);
}
flags = null;
}
return this;
}
/**
* @param names include name
* @return this
*/
public DataQuery includeOnly(String... names) {
return includeOnly(Arrays.asList(names));
}
/**
* @param names include name
* @return this
*/
public DataQuery includeOnly(Collection names) {
if (Collections.isEmpty(names)) {
clearColumns();
return this;
}
for (String name : names) {
incColumn(name);
}
Iterator> it = columns.entrySet().iterator();
while (it.hasNext()) {
Entry en = it.next();
if (!names.contains(en.getKey())) {
it.remove();
}
}
flags = null;
return this;
}
/**
* exclude primary keys
* @return this
*/
public DataQuery excludePrimaryKeys() {
Entity entity = getEntity();
for (EntityField ef : entity.getFields()) {
if (ef.isPrimaryKey()) {
excColumn(ef.getName());
}
}
flags = null;
return this;
}
/**
* exclude not primary keys
* @return this
*/
public DataQuery excludeNotPrimaryKeys() {
Entity entity = getEntity();
for (EntityField ef : entity.getFields()) {
if (!ef.isPrimaryKey()) {
excColumn(ef.getName());
}
}
flags = null;
return this;
}
/**
* @return this
*/
public DataQuery excludeAll() {
Entity entity = getEntity();
for (EntityField ef : entity.getFields()) {
excColumn(ef.getName());
}
flags = null;
return this;
}
/**
* @param names the field names to exclude
* @return this
*/
public DataQuery exclude(String... names) {
return exclude(Arrays.asList(names));
}
/**
* @param names the field names to exclude
* @return this
*/
public DataQuery exclude(Collection names) {
if (Collections.isNotEmpty(names)) {
for (String name : names) {
excColumn(name);
}
flags = null;
}
return this;
}
/**
* @param name field name
* @return true if the name should include
*/
@Override
public boolean shouldInclude(String name) {
return !hasIncludes() || columns.get(name) != null;
}
/**
* @param name field name
* @return true if the name should exclude
*/
@Override
public boolean shouldExclude(String name) {
if (hasIncludes()) {
return columns.get(name) == null;
}
if (hasExcludes()) {
return columns.containsKey(name) && columns.get(name) == null;
}
return false;
}
/**
* clearColumns
*
* @return this
*/
public DataQuery clearColumns() {
if (columns != null) {
columns.clear();
flags = null;
}
return this;
}
//---------------------------------------------------------------
// join
//
/**
* @return true if has orders
*/
@Override
public boolean hasJoins() {
return joins != null && !joins.isEmpty();
}
/**
* @return joins
*/
@Override
public Map getJoins() {
return joins;
}
/**
* @return join
*/
@Override
public Join getJoin(String join) {
if (Collections.isEmpty(joins)) {
return null;
}
return joins.get(join);
}
/**
* add left join
* @param query join query
* @param alias join alias
* @param conditions join conditions
* @return this
*/
public DataQuery leftJoin(Query query, String alias, String ... conditions) {
return join(Join.LEFT, query, alias, conditions);
}
/**
* add right join
* @param query join query
* @param alias join alias
* @param conditions join conditions
* @return this
*/
public DataQuery rightJoin(Query query, String alias, String ... conditions) {
return join(Join.RIGHT, query, alias, conditions);
}
/**
* add inner join
* @param query join query
* @param alias join alias
* @param conditions join conditions
* @return this
*/
public DataQuery innerJoin(Query query, String alias, String ... conditions) {
return join(Join.INNER, query, alias, conditions);
}
/**
* add join
* @param query join query
* @param alias join alias
* @param conditions join conditions
* @return this
*/
public DataQuery join(Query query, String alias, String ... conditions) {
return join(null, query, alias, conditions);
}
/**
* add join
* @param type join type
* @param query join query
* @param alias join alias
* @param conditions join conditions
* @return this
*/
public DataQuery join(String type, Query query, String alias, String ... conditions) {
Asserts.notEmpty(alias, "The parameter alias is empty");
if (joins == null) {
joins = new LinkedHashMap();
}
joins.put(alias, new Join(type, query, conditions));
return this;
}
//---------------------------------------------------------------
// auto joins
//
/**
* auto add left join from @Join
* @param join join name
* @return this
*/
public DataQuery autoLeftJoin(String join) {
return autoJoin(Join.LEFT, join);
}
/**
* auto add left join from @Join
* @param join join name
* @param query join table query
* @return this
*/
public DataQuery autoLeftJoin(String join, Query query) {
return autoJoin(Join.LEFT, join, query);
}
/**
* auto add right join from @Join
* @param join join name
* @return this
*/
public DataQuery autoRightJoin(String join) {
return autoJoin(Join.RIGHT, join);
}
/**
* auto add right join from @Join
* @param join join name
* @param query join table query
* @return this
*/
public DataQuery autoRightJoin(String join, Query query) {
return autoJoin(Join.RIGHT, join, query);
}
/**
* auto add inner join from @Join
* @param join join name
* @return this
*/
public DataQuery autoInnerJoin(String join) {
return autoJoin(Join.INNER, join);
}
/**
* auto add inner join from @Join
* @param join join name
* @param query join table query
* @return this
*/
public DataQuery autoInnerJoin(String join, Query query) {
return autoJoin(Join.INNER, join, query);
}
/**
* auto add join from @Join
* @param join join name
* @return this
*/
public DataQuery autoJoin(String join) {
return autoJoin(null, join);
}
/**
* auto add join from @Join
* @param join join name
* @param query join table query
* @return this
*/
public DataQuery autoJoin(String join, Query query) {
return autoJoin(null, join, query);
}
/**
* auto add join from @Join
* @param type join type
* @param join join name
* @return this
*/
public DataQuery autoJoin(String type, String join) {
return autoJoin(type, join, null);
}
/**
* auto add join from @Join
* @param type join type
* @param join join name
* @param query join table query
* @return this
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
public DataQuery autoJoin(String type, String join, Query query) {
Asserts.notEmpty(join, "The parameter join is empty");
Entity entity = getEntity();
Asserts.notNull(entity, "The entity is null");
Asserts.notEmpty(entity.getJoins(), "The entity joins is null");
EntityJoin ej = entity.getJoin(join);
if (ej == null) {
throw new IllegalArgumentException("The entity join [" + join + "] is not found");
}
if (query == null) {
query = new DataQuery(ej.getTarget());
}
else {
if (query.getEntity() != ej.getTarget()) {
throw new IllegalArgumentException("The join query [" + query.getEntity().getType() + "] is compatible to " + ej.getTarget().getType());
}
}
String[] cs = new String[ej.getKeys().size()];
for (int i = 0; i < cs.length; i++) {
cs[i] = ej.getKeys().get(i).getName() + '=' + ej.getRefs().get(i).getName();
}
join(type, query, join, cs);
for (EntityField ef : entity.getFields()) {
if (join.equals(ef.getJoinName())) {
rawColumn(ef.getName(), join + '.' + ef.getJoinField());
}
}
return this;
}
//---------------------------------------------------------------
// orders
//
/**
* @param name property/field/column name
* @return true if the property has some order
*/
@Override
public boolean hasOrder(String name) {
if (hasOrders()) {
return orders.containsKey(name);
}
return false;
}
/**
* @return true if has orders
*/
@Override
public boolean hasOrders() {
return orders != null && !orders.isEmpty();
}
/**
* @return orders
*/
@Override
public Map getOrders() {
return orders;
}
/**
* add ascend order
* @param column column
* @return this
*/
public DataQuery orderBy(String column) {
return orderBy(column, true);
}
/**
* add order
* @param name name
* @param order order direction
* @return this
*/
public DataQuery orderBy(String name, Order order) {
Asserts.notEmpty(name, "The parameter name is empty");
if (orders == null) {
orders = new LinkedHashMap();
}
orders.put(name, order);
return this;
}
/**
* add order
* @param name name
* @param order order direction
* @return this
*/
public DataQuery orderBy(String name, String order) {
return orderBy(name, Order.parse(order));
}
/**
* add order
* @param name name
* @param ascend direction
* @return this
*/
public DataQuery orderBy(String name, boolean ascend) {
return orderBy(name, ascend ? Order.ASC : Order.DESC);
}
/**
* add ascend order
* @param name name
* @return this
*/
public DataQuery orderByAsc(String name) {
return orderBy(name, true);
}
/**
* add descend order
* @param name name
* @return this
*/
public DataQuery orderByDesc(String name) {
return orderBy(name, false);
}
//---------------------------------------------------------------
// groups
//
/**
* @return true if has groups
*/
@Override
public boolean hasGroups() {
return groups != null && !groups.isEmpty();
}
/**
* @return groups
*/
@Override
public List getGroups() {
return groups;
}
/**
* add group
* @param column column
* @return this
*/
public DataQuery groupBy(String ... column) {
if (groups == null) {
groups = new ArrayList();
}
for (String s : column) {
groups.add(s);
}
return this;
}
//---------------------------------------------------------------
// start & limit
//
/**
* @return the start
*/
@Override
public long getStart() {
return start;
}
/**
* @param start the start to set
*/
public void setStart(long start) {
Asserts.isTrue(start >= 0, "The start must >= 0");
this.start = start;
}
/**
* @return the limit
*/
@Override
public long getLimit() {
return limit;
}
/**
* @param limit the limit to set
*/
public void setLimit(long limit) {
Asserts.isTrue(limit >= 0, "The limit must >= 0");
this.limit = limit;
}
/**
* @param start the start to set
* @return this
*/
public DataQuery start(long start) {
setStart(start);
return this;
}
/**
* @param limit the limit to set
* @return this
*/
public DataQuery limit(long limit) {
setLimit(limit);
return this;
}
/**
* is this query needs paginate
* @return true if start or limit > 0
*/
@Override
public boolean needsPaginate() {
return start > 0 || limit > 0;
}
//---------------------------------------------------------------
// conditions
//
/**
* @return filters
*/
@Override
public ComboFilter getFilters() {
return filters;
}
/**
* @return true if has conditions
*/
@Override
public boolean hasFilters() {
return filters != null && !filters.isEmpty();
}
/**
* @param name property/field/column name
* @return true if the property has some filter
*/
@Override
public boolean hasFilter(String name) {
if (hasFilters()) {
return filters.hasFilter(name);
}
return false;
}
private DataQuery addSimpleExpression(String field, Operator operator) {
getCurrent().add(new SimpleFilter(field, operator));
return this;
}
private DataQuery addCompareValueExpression(String field, Operator operator, Object compareValue) {
getCurrent().add(new ValueFilter(field, operator, compareValue));
return this;
}
private DataQuery addCompareFieldExpression(String field, Operator operator, String compareField) {
getCurrent().add(new ReferFilter(field, operator, compareField));
return this;
}
private DataQuery addCompareCollectionExpression(String field, Operator operator, Object[] values) {
getCurrent().add(new ValueFilter(field, operator, values));
return this;
}
private DataQuery addCompareCollectionExpression(String field, Operator operator, Collection values) {
getCurrent().add(new ValueFilter(field, operator, values));
return this;
}
private DataQuery addCompareRanageExpression(String field, Operator operator, Object minValue, Object maxValue) {
getCurrent().add(new ValueFilter(field, operator, new Object[] { minValue, maxValue }));
return this;
}
private ComboFilter getCurrent() {
if (Collections.isNotEmpty(stack)) {
return stack.get(stack.size() - 1);
}
if (filters != null) {
return filters;
}
filters = new ComboFilter(Logical.AND);
return filters;
}
private void setCurrent(ComboFilter cf) {
if (stack == null) {
stack = new ArrayList();
}
stack.add(cf);
}
/**
* starts with AND
* @return this
*/
public DataQuery and() {
ComboFilter cf = new ComboFilter(Logical.AND);
getCurrent().add(cf);
setCurrent(cf);
return this;
}
/**
* starts with OR
* @return this
*/
public DataQuery or() {
ComboFilter cf = new ComboFilter(Logical.OR);
getCurrent().add(cf);
setCurrent(cf);
return this;
}
/**
* end with AND/OR
* @return this
*/
public DataQuery end() {
ComboFilter cf = getCurrent();
// remove current from stack
if (Collections.isNotEmpty(stack)) {
stack.remove(stack.size() - 1);
}
if (cf.isEmpty()) {
// remove empty ComboFilter for and().end()
ComboFilter pf = getCurrent();
pf.getFilters().remove(cf);
}
return this;
}
/**
* add "field IS NULL" expression
* @param field field
* @return this
*/
public DataQuery isNull(String field) {
return addSimpleExpression(field, Operator.IS_NULL);
}
/**
* add "field IS NOT NULL" expression
* @param field field
* @return this
*/
public DataQuery isNotNull(String field) {
return addSimpleExpression(field, Operator.IS_NOT_NULL);
}
/**
* add "field = value" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery eq(String field, Object value) {
return addCompareValueExpression(field, Operator.EQUAL, value);
}
/**
* add "field <> value" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery ne(String field, Object value) {
return addCompareValueExpression(field, Operator.NOT_EQUAL, value);
}
/**
* add "field > value" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery gt(String field, Object value) {
return addCompareValueExpression(field, Operator.GREATER_THAN, value);
}
/**
* add "field %gt;= value" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery ge(String field, Object value) {
return addCompareValueExpression(field, Operator.GREATER_EQUAL, value);
}
/**
* add "field < value" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery lt(String field, Object value) {
return addCompareValueExpression(field, Operator.LESS_THAN, value);
}
/**
* add "field <= value" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery le(String field, Object value) {
return addCompareValueExpression(field, Operator.LESS_EQUAL, value);
}
/**
* add "field LIKE value" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery like(String field, String value) {
return addCompareValueExpression(field, Operator.LIKE, value);
}
/**
* add "field LIKE value" expression
* @param field field
* @param value value
* @param esc escape char
* @return this
*/
public DataQuery like(String field, String value, char esc) {
return addCompareValueExpression(field, Operator.LIKE, new Object[] { value, esc });
}
/**
* add "field NOT LIKE value" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery nlike(String field, String value) {
return addCompareValueExpression(field, Operator.NOT_LIKE, value);
}
/**
* add "field NOT LIKE value" expression
* @param field field
* @param value value
* @param esc escape char
* @return this
*/
public DataQuery nlike(String field, String value, char esc) {
return addCompareValueExpression(field, Operator.NOT_LIKE, new Object[] { value, esc });
}
/**
* contains the value, add "field LIKE %value%" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery contains(String field, String value) {
return addCompareValueExpression(field, Operator.CONTAINS, value);
}
/**
* not contains the value, add "field NOT LIKE %value%" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery ncontains(String field, String value) {
return addCompareValueExpression(field, Operator.NOT_CONTAINS, value);
}
/**
* startsWith the value, add "field LIKE value%" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery startsWith(String field, String value) {
return addCompareValueExpression(field, Operator.STARTS_WITH, value);
}
/**
* not startsWith the value, add "field NOT LIKE value%" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery nstartsWith(String field, String value) {
return addCompareValueExpression(field, Operator.NOT_STARTS_WITH, value);
}
/**
* endsWith the value, add "field LIKE %value" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery endsWith(String field, String value) {
return addCompareValueExpression(field, Operator.ENDS_WITH, value);
}
/**
* not endsWith the value, add "field NOT LIKE %value" expression
* @param field field
* @param value value
* @return this
*/
public DataQuery nendsWith(String field, String value) {
return addCompareValueExpression(field, Operator.NOT_ENDS_WITH, value);
}
/**
* equals to the compareField, add "field = compareField" expression
* @param field field
* @param compareField field to compare
* @return this
*/
public DataQuery eqf(String field, String compareField) {
return addCompareFieldExpression(field, Operator.EQUAL, compareField);
}
/**
* not equals to the compareField, add "field <> compareField" expression
* @param field field
* @param compareField field to compare
* @return this
*/
public DataQuery nef(String field, String compareField) {
return addCompareFieldExpression(field, Operator.NOT_EQUAL, compareField);
}
/**
* greater than to the compareField, add "field %gt; compareField" expression
* @param field field
* @param compareField field to compare
* @return this
*/
public DataQuery gtf(String field, String compareField) {
return addCompareFieldExpression(field, Operator.GREATER_THAN, compareField);
}
/**
* greater equals to the compareField, add "field >= compareField" expression
* @param field field
* @param compareField field to compare
* @return this
*/
public DataQuery gef(String field, String compareField) {
return addCompareFieldExpression(field, Operator.GREATER_EQUAL, compareField);
}
/**
* add "field < compareField" expression
* @param field field
* @param compareField field to compare
* @return this
*/
public DataQuery ltf(String field, String compareField) {
return addCompareFieldExpression(field, Operator.LESS_THAN, compareField);
}
/**
* add "field %lt;= compareField" expression
* @param field field
* @param compareField field to compare
* @return this
*/
public DataQuery lef(String field, String compareField) {
return addCompareFieldExpression(field, Operator.LESS_EQUAL, compareField);
}
/**
* add "field IN (value1, value2 ...)" expression
* @param field field
* @param values values
* @return this
*/
public DataQuery in(String field, Object... values) {
return addCompareCollectionExpression(field, Operator.IN, values);
}
/**
* add "field IN (value1, value2 ...)" expression
* @param field field
* @param values values
* @return this
*/
public DataQuery in(String field, Collection values) {
return addCompareCollectionExpression(field, Operator.IN, values);
}
/**
* add "field NOT IN (value1, value2 ...)" expression
* @param field field
* @param values values
* @return this
*/
public DataQuery nin(String field, Object[] values) {
return addCompareCollectionExpression(field, Operator.NOT_IN, values);
}
/**
* add "field NOT IN (value1, value2 ...)" expression
* @param field field
* @param values values
* @return this
*/
public DataQuery nin(String field, Collection values) {
return addCompareCollectionExpression(field, Operator.NOT_IN, values);
}
/**
* add "field BETWEEN (value1, value2)" expression
* @param field field
* @param value1 value from
* @param value2 value to
* @return this
*/
public DataQuery between(String field, Object value1, Object value2) {
return addCompareRanageExpression(field, Operator.BETWEEN, value1, value2);
}
/**
* add "field NOT BETWEEN (value1, value2)" expression
* @param field field
* @param value1 value from
* @param value2 value to
* @return this
*/
public DataQuery nbetween(String field, Object value1, Object value2) {
return addCompareRanageExpression(field, Operator.NOT_BETWEEN, value1, value2);
}
/**
* equal to primary keys, Entity must be set
* @param keys primary keys
* @return this
*/
public DataQuery equalToPrimaryKeys(Object ... keys) {
Entity entity = getEntity();
if (keys == null || keys.length == 0) {
throw new IllegalArgumentException("Illegal primary keys for Entity [" + entity.getType() + "]: " + Objects.toString(keys));
}
if (keys.length == 1 && entity.getType().isInstance(keys[0])) {
for (EntityField ef : entity.getPrimaryKeys()) {
Object k = ef.getValue(keys[0]);
if (k == null) {
throw new IllegalArgumentException("Null primary keys for Entity [" + entity.getType() + "]: " + Objects.toString(keys));
}
eq(ef.getName(), k);
}
}
else {
if (keys.length != entity.getPrimaryKeys().size()) {
throw new IllegalArgumentException("Illegal primary keys for Entity [" + entity.getType() + "]: " + Objects.toString(keys));
}
int i = 0;
for (EntityField ef : entity.getFields()) {
if (ef.isPrimaryKey()) {
eq(ef.getName(), keys[i++]);
}
}
}
return this;
}
/**
* @see java.lang.Object#clone()
*/
@Override
public DataQuery clone() {
return new DataQuery(this);
}
/**
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
return Objects.hash(target, distinct, start, limit, columns, joins, filters, orders, groups);
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
@SuppressWarnings("rawtypes")
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
DataQuery rhs = (DataQuery)obj;
return Objects.equalsBuilder()
.append(target, rhs.target)
.append(distinct, rhs.distinct)
.append(start, rhs.start)
.append(limit, rhs.limit)
.append(columns, rhs.columns)
.append(joins, rhs.joins)
.append(filters, rhs.filters)
.append(orders, rhs.orders)
.append(groups, rhs.groups)
.isEquals();
}
/**
* @return a string representation of the object.
*/
@Override
public String toString() {
return Objects.toStringBuilder()
.append("target", target)
.append("distinct", distinct)
.append("start", start)
.append("limit", limit)
.append("columns", columns)
.append("joins", joins)
.append("filters", filters)
.append("orders", orders)
.append("groups", groups)
.toString();
}
}
