io.ebeaninternal.server.deploy.id.IdBinderEmbedded Maven / Gradle / Ivy
package io.ebeaninternal.server.deploy.id;
import io.ebean.bean.EntityBean;
import io.ebean.util.SplitName;
import io.ebeaninternal.api.SpiExpressionBind;
import io.ebeaninternal.api.SpiExpressionRequest;
import io.ebeaninternal.server.core.DefaultSqlUpdate;
import io.ebeaninternal.server.deploy.BeanDescriptor;
import io.ebeaninternal.server.deploy.BeanProperty;
import io.ebeaninternal.server.deploy.BeanPropertyAssocOne;
import io.ebeaninternal.server.deploy.DbReadContext;
import io.ebeaninternal.server.deploy.DbSqlContext;
import io.ebeaninternal.server.bind.DataBind;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.sql.SQLException;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
/**
* Bind an Id that is an Embedded bean.
*/
public final class IdBinderEmbedded implements IdBinder {
private final BeanPropertyAssocOne embIdProperty;
private final boolean idInExpandedForm;
private final boolean idClass;
private BeanProperty[] props;
private BeanDescriptor idDesc;
private String idInValueSql;
public IdBinderEmbedded(boolean idInExpandedForm, BeanPropertyAssocOne embIdProperty) {
this.idInExpandedForm = idInExpandedForm;
this.embIdProperty = embIdProperty;
this.idClass = "_$IdClass$".equals(embIdProperty.name());
}
@Override
public void initialise() {
this.idDesc = embIdProperty.targetDescriptor();
this.props = embIdProperty.properties();
this.idInValueSql = idInExpandedForm ? idInExpanded() : idInCompressed();
}
@Override
public String idNullOr(String prefix, String filterManyExpression) {
StringBuilder sb = new StringBuilder(100);
sb.append("((");
for (int i = 0; i < props.length; i++) {
if (i > 0) {
sb.append(" and ");
}
sb.append("${").append(prefix).append('}').append(props[i].dbColumn()).append(" is null");
}
sb.append(") or (").append(filterManyExpression).append("))");
return sb.toString();
}
@Override
public String idSelect() {
return embIdProperty.name();
}
@Override
public boolean isIdInExpandedForm() {
return idInExpandedForm;
}
private String idInExpanded() {
final StringBuilder sb = new StringBuilder(30);
sb.append('(');
for (int i = 0; i < props.length; i++) {
if (i > 0) {
sb.append(" and ");
}
sb.append(idDesc.baseTableAlias()).append('.').append(props[i].dbColumn()).append("=?");
}
sb.append(')');
return sb.toString();
}
private String idInCompressed() {
final StringBuilder sb = new StringBuilder(props.length * 2 + 2).append('(');
for (int i = 0; i < props.length; i++) {
if (i > 0) {
sb.append(',');
}
sb.append('?');
}
sb.append(')');
return sb.toString();
}
@Override
public BeanProperty beanProperty() {
return embIdProperty;
}
public BeanDescriptor descriptor() {
return idDesc;
}
@Override
public void buildRawSqlSelectChain(String prefix, List selectChain) {
if (!idClass) {
prefix = SplitName.add(prefix, embIdProperty.name());
}
for (BeanProperty prop : props) {
prop.buildRawSqlSelectChain(prefix, selectChain);
}
}
@Override
public BeanProperty findBeanProperty(String dbColumnName) {
for (BeanProperty prop : props) {
if (dbColumnName.equalsIgnoreCase(prop.dbColumn())) {
return prop;
}
}
return null;
}
@Override
public boolean isComplexId() {
return true;
}
@Override
public int size() {
return props.length;
}
@Override
public String orderBy() {
return orderBy(null, true);
}
@Override
public String orderBy(String pathPrefix, boolean ascending) {
final StringBuilder sb = new StringBuilder(100);
for (int i = 0; i < props.length; i++) {
if (i > 0) {
sb.append(", ");
}
if (pathPrefix != null) {
sb.append(pathPrefix).append('.');
}
if (!idClass) {
sb.append(embIdProperty.name()).append('.');
}
sb.append(props[i].name());
if (!ascending) {
sb.append(" desc");
}
}
return sb.toString();
}
public BeanProperty[] properties() {
return props;
}
@Override
public String idInValueExprDelete(int size) {
if (size <= 0) {
throw new IndexOutOfBoundsException("The size must be at least 1");
}
if (!idInExpandedForm) {
return idInValueExpr(false, size);
}
final StringBuilder sb = new StringBuilder(80);
sb.append('(');
for (int j = 0; j < size; j++) {
if (j > 0) {
sb.append(" or ");
}
sb.append('(');
for (int i = 0; i < props.length; i++) {
if (i > 0) {
sb.append(" and ");
}
sb.append(props[i].dbColumn()).append("=?");
}
sb.append(')');
}
sb.append(") ");
return sb.toString();
}
@Override
public String idInValueExpr(boolean not, int size) {
if (size <= 0) {
throw new IndexOutOfBoundsException("The size must be at least 1");
}
final StringBuilder sb = new StringBuilder(80);
if (not) {
sb.append(" not");
}
if (!idInExpandedForm) {
sb.append(" in");
}
sb.append(" (");
for (int i = 0; i < size; i++) {
if (i > 0) {
if (idInExpandedForm) {
sb.append(" or ");
} else {
sb.append(", ");
}
}
sb.append(idInValueSql);
}
sb.append(") ");
return sb.toString();
}
@Override
public Object[] values(EntityBean bean) {
return bindValues(embIdProperty.getValue(bean));
}
@Override
public Object[] bindValues(Object value) {
final EntityBean bean = (EntityBean) value;
final Object[] bindValues = new Object[props.length];
for (int i = 0; i < props.length; i++) {
bindValues[i] = props[i].getValue(bean);
}
return bindValues;
}
/**
* Convert from embedded bean to Map.
*/
@Override
public Object convertForJson(EntityBean bean) {
final EntityBean ebValue = (EntityBean) embIdProperty.getValue(bean);
final Map map = new LinkedHashMap<>();
for (BeanProperty prop : props) {
map.put(prop.name(), prop.getValue(ebValue));
}
return map;
}
/**
* Convert back from a Map to embedded bean.
*/
@Override
@SuppressWarnings("unchecked")
public Object convertFromJson(Object value) {
final Map map = (Map) value;
final EntityBean idValue = idDesc.createEntityBean();
for (BeanProperty prop : props) {
prop.setValue(idValue, map.get(prop.name()));
}
return idValue;
}
@Override
public void bindId(DefaultSqlUpdate sqlUpdate, Object value) {
final EntityBean bean = (EntityBean) value;
for (BeanProperty prop : props) {
sqlUpdate.setParameter(prop.getValue(bean));
}
}
@Override
public void bindId(DataBind dataBind, Object value) throws SQLException {
final EntityBean bean = (EntityBean) value;
for (BeanProperty prop : props) {
prop.bind(dataBind, prop.getValue(bean));
}
}
@Override
public void addBindValues(DefaultSqlUpdate sqlUpdate, Collection values) {
for (Object value : values) {
bindId(sqlUpdate, value);
}
}
@Override
public void addBindValues(SpiExpressionBind request, Collection values) {
for (Object value : values) {
final EntityBean bean = (EntityBean) value;
for (BeanProperty prop : props) {
request.addBindValue(prop.getValue(bean));
}
}
}
@Override
public Object readData(DataInput dataInput) throws IOException {
final EntityBean embId = idDesc.createEntityBean();
boolean notNull = true;
for (BeanProperty prop : props) {
final Object value = prop.readData(dataInput);
prop.setValue(embId, value);
if (value == null) {
notNull = false;
}
}
return notNull ? embId : null;
}
@Override
public void writeData(DataOutput dataOutput, Object idValue) throws IOException {
final EntityBean bean = (EntityBean) idValue;
for (BeanProperty prop : props) {
prop.writeData(dataOutput, prop.getValue(bean));
}
}
@Override
public void loadIgnore(DbReadContext ctx) {
for (BeanProperty prop : props) {
prop.loadIgnore(ctx);
}
}
@Override
public Object read(DbReadContext ctx) throws SQLException {
final EntityBean embId = idDesc.createEntityBean();
boolean nullValue = true;
for (BeanProperty prop : props) {
final Object value = prop.read(ctx);
if (value != null) {
prop.setValue(embId, value);
nullValue = false;
}
}
return nullValue ? null : embId;
}
@Override
public Object readSet(DbReadContext ctx, EntityBean bean) throws SQLException {
Object embId = read(ctx);
if (embId != null) {
embIdProperty.setValue(bean, embId);
return embId;
} else {
return null;
}
}
@Override
public void appendSelect(DbSqlContext ctx, boolean subQuery) {
for (BeanProperty prop : props) {
prop.appendSelect(ctx, subQuery);
}
}
@Override
public String assocInExpr(String prefix) {
final StringBuilder sb = new StringBuilder(80);
sb.append('(');
for (int i = 0; i < props.length; i++) {
if (i > 0) {
sb.append(", ");
}
if (prefix != null) {
sb.append(prefix).append('.');
}
sb.append(props[i].name());
}
sb.append(')');
return sb.toString();
}
@Override
public String assocExpr(String prefix, String operator) {
final StringBuilder sb = new StringBuilder(100);
for (int i = 0; i < props.length; i++) {
if (i > 0) {
sb.append(" and ");
}
if (prefix != null) {
sb.append(prefix).append('.');
}
if (!idClass) {
sb.append(embIdProperty.name()).append('.');
}
sb.append(props[i].name()).append(operator);
}
return sb.toString();
}
@Override
public String bindEqSql(String baseTableAlias) {
final StringBuilder sb = new StringBuilder(80);
for (int i = 0; i < props.length; i++) {
if (i > 0) {
sb.append(" and ");
}
if (baseTableAlias != null) {
sb.append(baseTableAlias).append('.');
}
sb.append(props[i].dbColumn()).append("=?");
}
return sb.toString();
}
@Override
public String bindInSql(String baseTableAlias) {
if (idInExpandedForm) {
return "";
}
final StringBuilder sb = new StringBuilder(80);
sb.append('(');
for (int i = 0; i < props.length; i++) {
if (i > 0) {
sb.append(',');
}
if (baseTableAlias != null) {
sb.append(baseTableAlias).append('.');
}
sb.append(props[i].dbColumn());
}
sb.append(')');
return sb.toString();
}
@Override
public Object convertId(Object idValue) {
if (idValue instanceof String) {
final EntityBean embId = idDesc.createEntityBean();
final String[] rawValues = ((String)idValue).split("\\|");
for (int i = 0; i < props.length; i++) {
props[i].setValue(embId, props[i].parse(rawValues[i]));
}
return embId;
}
return idValue;
}
@Override
public Object convertSetId(Object idValue, EntityBean bean) {
// can not cast/convert if it is embedded
if (bean != null) {
// support PropertyChangeSupport
embIdProperty.setValueIntercept(bean, idValue);
}
return idValue;
}
@Override
public String cacheKey(Object value) {
final EntityBean bean = (EntityBean)value;
final StringBuilder sb = new StringBuilder(80);
for (BeanProperty prop : props) {
Object val = prop.getValue(bean);
if (val != null) {
sb.append(prop.format(val));
}
sb.append('|');
}
return sb.toString();
}
@Override
public String cacheKeyFromBean(EntityBean bean) {
return cacheKey(embIdProperty.getValue(bean));
}
}
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