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Java JDBC 4.2 (JRE 8+) driver for YugaByte SQL database
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/*
* Copyright (c) 2004, PostgreSQL Global Development Group
* See the LICENSE file in the project root for more information.
*/
// Copyright (c) 2004, Open Cloud Limited.
package org.postgresql.core.v3;
import org.postgresql.core.ParameterList;
import org.postgresql.core.Query;
import org.postgresql.core.SqlCommand;
import org.checkerframework.checker.nullness.qual.Nullable;
import java.util.Map;
/**
* V3 Query implementation for queries that involve multiple statements. We split it up into one
* SimpleQuery per statement, and wrap the corresponding per-statement SimpleParameterList objects
* in a CompositeParameterList.
*
* @author Oliver Jowett ([email protected])
*/
class CompositeQuery implements Query {
CompositeQuery(SimpleQuery[] subqueries, int[] offsets) {
this.subqueries = subqueries;
this.offsets = offsets;
}
@Override
public ParameterList createParameterList() {
SimpleParameterList[] subparams = new SimpleParameterList[subqueries.length];
for (int i = 0; i < subqueries.length; i++) {
subparams[i] = (SimpleParameterList) subqueries[i].createParameterList();
}
return new CompositeParameterList(subparams, offsets);
}
@Override
public String toString(@Nullable ParameterList parameters) {
StringBuilder sbuf = new StringBuilder(subqueries[0].toString());
for (int i = 1; i < subqueries.length; i++) {
sbuf.append(';');
sbuf.append(subqueries[i]);
}
return sbuf.toString();
}
@Override
public String getNativeSql() {
StringBuilder sbuf = new StringBuilder(subqueries[0].getNativeSql());
for (int i = 1; i < subqueries.length; i++) {
sbuf.append(';');
sbuf.append(subqueries[i].getNativeSql());
}
return sbuf.toString();
}
@Override
public @Nullable SqlCommand getSqlCommand() {
return null;
}
@Override
public String toString() {
return toString(null);
}
@Override
public void close() {
for (SimpleQuery subquery : subqueries) {
subquery.close();
}
}
@Override
public Query[] getSubqueries() {
return subqueries;
}
@Override
public boolean isStatementDescribed() {
for (SimpleQuery subquery : subqueries) {
if (!subquery.isStatementDescribed()) {
return false;
}
}
return true;
}
@Override
public boolean isEmpty() {
for (SimpleQuery subquery : subqueries) {
if (!subquery.isEmpty()) {
return false;
}
}
return true;
}
@Override
public int getBatchSize() {
return 0; // no-op, unsupported
}
@Override
public @Nullable Map getResultSetColumnNameIndexMap() {
return null; // unsupported
}
private final SimpleQuery[] subqueries;
private final int[] offsets;
}
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