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rbygrave
+107
-107
@@ -1,107 +1,107 @@
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package com.avaje.ebeaninternal.server.query;
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import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.List;
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import com.avaje.ebean.bean.EntityBean;
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import com.avaje.ebeaninternal.server.deploy.BeanPropertyAssoc;
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import com.avaje.ebeaninternal.server.deploy.BeanPropertyAssocMany;
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import com.avaje.ebeaninternal.server.deploy.BeanPropertyAssocOne;
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import com.avaje.ebeaninternal.server.deploy.DbReadContext;
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import com.avaje.ebeaninternal.server.deploy.DbSqlContext;
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import com.avaje.ebeaninternal.server.deploy.TableJoin;
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/**
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* Join to Many (or child of a many) to support where clause predicates on many properties.
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*/
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public class SqlTreeNodeManyWhereJoin implements SqlTreeNode {
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private final String parentPrefix;
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private final String prefix;
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private final BeanPropertyAssoc<?> nodeBeanProp;
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/**
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* Child joins.
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*/
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private final SqlTreeNode[] children;
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/**
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* The many where join which is either INNER or OUTER.
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*/
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private final SqlJoinType manyJoinType;
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public SqlTreeNodeManyWhereJoin(String prefix, BeanPropertyAssoc<?> prop, SqlJoinType manyJoinType) {
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this.nodeBeanProp = prop;
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this.prefix = prefix;
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this.manyJoinType = manyJoinType;
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String[] split = SplitName.split(prefix);
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this.parentPrefix = split[0];
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List<SqlTreeNode> childrenList = new ArrayList<SqlTreeNode>(0);
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this.children = childrenList.toArray(new SqlTreeNode[childrenList.size()]);
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}
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/**
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* Append to the FROM clause for this node.
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*/
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@Override
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public void appendFrom(DbSqlContext ctx, SqlJoinType currentJoinType) {
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// always use the join type as per this many where join
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// (OUTER for disjunction and otherwise INNER)
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appendFromBaseTable(ctx, manyJoinType);
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for (int i = 0; i < children.length; i++) {
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children[i].appendFrom(ctx, manyJoinType);
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}
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}
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/**
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* Join to base table for this node. This includes a join to the
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* intersection table if this is a ManyToMany node.
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*/
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public void appendFromBaseTable(DbSqlContext ctx, SqlJoinType joinType) {
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String alias = ctx.getTableAliasManyWhere(prefix);
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String parentAlias = ctx.getTableAliasManyWhere(parentPrefix);
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if (nodeBeanProp instanceof BeanPropertyAssocOne<?>){
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nodeBeanProp.addJoin(joinType, parentAlias, alias, ctx);
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} else {
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BeanPropertyAssocMany<?> manyProp = (BeanPropertyAssocMany<?>)nodeBeanProp;
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if (!manyProp.isManyToMany()) {
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manyProp.addJoin(joinType, parentAlias, alias, ctx);
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} else {
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String alias2 = alias + "z_";
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TableJoin manyToManyJoin = manyProp.getIntersectionTableJoin();
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manyToManyJoin.addJoin(joinType, parentAlias, alias2, ctx);
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manyProp.addJoin(joinType, alias2, alias, ctx);
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}
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}
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}
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public void buildSelectExpressionChain(List<String> selectChain) {
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// nothing to add
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}
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public void appendSelect(DbSqlContext ctx, boolean subQuery) {
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// nothing to do here
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}
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public void appendWhere(DbSqlContext ctx) {
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// nothing to do here
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}
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public void load(DbReadContext ctx, EntityBean parentBean) throws SQLException {
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// nothing to do here
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}
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}
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package com.avaje.ebeaninternal.server.query;
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import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.List;
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import com.avaje.ebean.bean.EntityBean;
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import com.avaje.ebeaninternal.server.deploy.BeanPropertyAssoc;
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import com.avaje.ebeaninternal.server.deploy.BeanPropertyAssocMany;
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import com.avaje.ebeaninternal.server.deploy.BeanPropertyAssocOne;
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import com.avaje.ebeaninternal.server.deploy.DbReadContext;
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import com.avaje.ebeaninternal.server.deploy.DbSqlContext;
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import com.avaje.ebeaninternal.server.deploy.TableJoin;
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/**
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* Join to Many (or child of a many) to support where clause predicates on many properties.
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*/
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public class SqlTreeNodeManyWhereJoin implements SqlTreeNode {
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private final String parentPrefix;
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private final String prefix;
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private final BeanPropertyAssoc<?> nodeBeanProp;
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/**
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* Child joins.
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*/
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private final SqlTreeNode[] children;
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/**
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* The many where join which is either INNER or OUTER.
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*/
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private final SqlJoinType manyJoinType;
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public SqlTreeNodeManyWhereJoin(String prefix, BeanPropertyAssoc<?> prop, SqlJoinType manyJoinType) {
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this.nodeBeanProp = prop;
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this.prefix = prefix;
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this.manyJoinType = manyJoinType;
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String[] split = SplitName.split(prefix);
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this.parentPrefix = split[0];
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List<SqlTreeNode> childrenList = new ArrayList<SqlTreeNode>(0);
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this.children = childrenList.toArray(new SqlTreeNode[childrenList.size()]);
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}
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/**
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* Append to the FROM clause for this node.
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*/
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@Override
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public void appendFrom(DbSqlContext ctx, SqlJoinType currentJoinType) {
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// always use the join type as per this many where join
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// (OUTER for disjunction and otherwise INNER)
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appendFromBaseTable(ctx, manyJoinType);
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for (int i = 0; i < children.length; i++) {
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children[i].appendFrom(ctx, manyJoinType);
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}
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}
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/**
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* Join to base table for this node. This includes a join to the
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* intersection table if this is a ManyToMany node.
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*/
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public void appendFromBaseTable(DbSqlContext ctx, SqlJoinType joinType) {
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String alias = ctx.getTableAliasManyWhere(prefix);
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String parentAlias = ctx.getTableAliasManyWhere(parentPrefix);
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if (nodeBeanProp instanceof BeanPropertyAssocOne<?>){
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nodeBeanProp.addJoin(joinType, parentAlias, alias, ctx);
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} else {
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BeanPropertyAssocMany<?> manyProp = (BeanPropertyAssocMany<?>)nodeBeanProp;
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if (!manyProp.isManyToMany()) {
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manyProp.addJoin(joinType, parentAlias, alias, ctx);
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} else {
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String alias2 = alias + "z_";
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TableJoin manyToManyJoin = manyProp.getIntersectionTableJoin();
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manyToManyJoin.addJoin(joinType, parentAlias, alias2, ctx);
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manyProp.addJoin(joinType, alias2, alias, ctx);
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}
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}
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}
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public void buildSelectExpressionChain(List<String> selectChain) {
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// nothing to add
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}
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public void appendSelect(DbSqlContext ctx, boolean subQuery) {
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// nothing to do here
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}
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public void appendWhere(DbSqlContext ctx) {
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// nothing to do here
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}
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public void load(DbReadContext ctx, EntityBean parentBean) throws SQLException {
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// nothing to do here
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}
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}
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