Package com.hp.hpl.jena.sdb.core.sqlnode

Examples of com.hp.hpl.jena.sdb.core.sqlnode.SqlNode

62
63
64
65
66
67
68
69
70
71
    }
   
    @Override
    protected void buildValues()
    {
        SqlNode sqlNode = getSqlNode() ;
        for ( Var v : getProject() )
            sqlNode = insertValueGetter(request, sqlNode, v) ;
        setSqlNode(sqlNode) ;
    }
View Full Code Here
173
174
175
176
177
178
179
180
        nTable.setValueColumnForVar(var, c2) ;
        // Condition for value: triple table column = node table id/hash
        nTable.addNote("Var: "+var) ;

        SqlExpr cond = new S_Equal(c1, c2) ;
        SqlNode n = SqlBuilder.leftJoin(request, sqlNode, nTable, cond) ;
        return n ;
    }
View Full Code Here
145
146
147
148
149
150
151
152
153
154
155
                // All variables.
                Collection<Var> tmp = OpVars.visibleVars(opSQL.getOriginal()) ;
                projectVars = new ArrayList<Var>(tmp) ;
            }

            SqlNode sqlNode = opSQL.getSqlNode() ;
           
            SQLBridgeFactory f = request.getStore().getSQLBridgeFactory() ;
           
            SQLBridge bridge = f.create(request, sqlNode, projectVars) ;
            bridge.build();
View Full Code Here
211
212
213
214
215
216
217
218
219
220
221
        }

        private Op transformSlice(OpSlice opSlice, OpSQL opSQL)
        {
            // (slice X)
            SqlNode sqlSubOp = opSQL.getSqlNode() ;
            SqlNode n = SqlSelectBlock.slice(request, sqlSubOp, opSlice.getStart(), opSlice.getLength()) ;
            OpSQL x = new OpSQL(n, opSlice, request) ;
            x.setBridge(opSQL.getBridge()) ;
            return x ;
        }
View Full Code Here
228
229
230
231
232
233
234
235
236
237
238
239
240
241
            if ( ! SDB_QC.isOpSQL(subOp) )
                // Can't cope - just pass the slice to the general superclass.
                return super.transform(opSlice, opProject) ;

            OpSQL opSQL = (OpSQL)subOp ;
            SqlNode sqlSubOp = opSQL.getSqlNode() ;
            List<Var> pv = opProject.getVars() ;
            // Do as (slice X)
            SqlNode n = SqlSelectBlock.slice(request, sqlSubOp, opSlice.getStart(), opSlice.getLength()) ;
            // Put back project - as an OpProject to leave for the bridge.
            OpSQL x = new OpSQL(n, opProject, request) ;
            x.setBridge(opSQL.getBridge()) ;
            // Bridge will be set later.
            // Is OpProject needed?
View Full Code Here
265
266
267
268
269
270
271
272
273
            if ( ! request.DistinctTranslation )
                return super.transform(opDistinct, subOp) ;
           
            if ( ! SDB_QC.isOpSQL(subOp) )
                return super.transform(opDistinct, subOp) ;
            SqlNode sqlSubOp = ((OpSQL)subOp).getSqlNode() ;
            SqlNode n = SqlSelectBlock.distinct(request, sqlSubOp) ;
            return new OpSQL(n, opDistinct, request) ;
        }
View Full Code Here
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
public class SqlStageList extends ArrayList<SqlStage>
{
    public SqlNode build(SDBRequest request, SlotCompiler slotCompiler)
    {
        SqlNode sqlNode = null ;
        // See QuadCompilerBase.compile
        for ( SqlStage s : this )
        {
            SqlNode sNode = s.build(request, slotCompiler) ;
            if ( sNode != null )
                sqlNode = SqlBuilder.innerJoin(request, sqlNode, sNode) ;
        }
       
        return sqlNode ;
View Full Code Here
74
75
76
77
78
79
80
81
    @Override
    public Op transform(OpQuadPattern quadPattern)
    {
        QuadBlock qBlk = new QuadBlock(quadPattern) ;
        SqlNode node = quadBlockCompiler.compile(qBlk) ;
        return new OpSQL(node, quadPattern, request) ;
    }
View Full Code Here
88
89
90
91
92
93
94
95
96
97
98
99
        if ( true )
            return super.transform(opJoin, left, right) ;
       
        if ( ! SDB_QC.isOpSQL(left) || ! SDB_QC.isOpSQL(right) )
            return super.transform(opJoin, left, right) ;
        SqlNode sqlLeft = ((OpSQL)left).getSqlNode() ;
        SqlNode sqlRight = ((OpSQL)right).getSqlNode() ;
       
        // This is wrong.  If right is more than single triple pattern,
        // the generated SQL wil attempt to use NodeTable lookups from the
        // LHS but they are out of scope.
       
View Full Code Here
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
        // Condition(s) in the left join.  Punt for now.
        if ( opJoin.getExprs() != null )
            return super.transform(opJoin, left, right) ;
       
        SqlNode sqlLeft = ((OpSQL)left).getSqlNode() ;
        SqlNode sqlRight = ((OpSQL)right).getSqlNode() ;
       
        // Check for coalesce.
        // Do optional variables on the right appear only as optional variables on the left?

        Set<ScopeEntry> scopes = sqlLeft.getIdScope().findScopes() ;
       
        // Find optional-on-left
        Set<ScopeEntry> scopes2 = toSet(filter(scopes, ScopeEntry.OptionalFilter)) ;
        Set<Var> leftOptVars = toSet(map(scopes2, ScopeEntry.ToVar)) ;              // Vars from left optionals.
       
        if ( false )
        {
            Iter<ScopeEntry> iter = Iter.iter(scopes) ;
            Set<Var> leftOptVars_ = iter.filter(ScopeEntry.OptionalFilter).map(ScopeEntry.ToVar).toSet() ;
        }
       
        // Find optional-on-right (easier - it's all variables)
        Set<Var> rightOptVars = sqlRight.getIdScope().getVars() ;
       
        // And finally, calculate the intersection of the two.
        // SetUtils extension - one side could be an iterator 
        Set<Var> coalesceVars = intersection(leftOptVars, rightOptVars) ;
       
        // Future simplification : LeftJoinClassifier.nonLinearVars
//        if ( ! coalesceVars.equals(LeftJoinClassifier.nonLinearVars( opJoin.getLeft(), opJoin.getRight() )) )
//        { unexpected }
       
        if ( coalesceVars.size() > 0  )
        {
            String alias = request.genId(AliasesSql.CoalesceAliasBase) ;
            SqlNode sqlNode = SqlBuilder.leftJoinCoalesce(request, alias,
                                                  sqlLeft, sqlRight,
                                                  coalesceVars) ;
            return new OpSQL(sqlNode, opJoin, request) ;
           
            // Punt
View Full Code Here
TOP

Related Classes of com.hp.hpl.jena.sdb.core.sqlnode.SqlNode

  • com.hp.hpl.jena.sdb.compiler.QuadBlockCompilerMain
  • com.hp.hpl.jena.sdb.compiler.QueryCompilerMain$DistinctOptimizer
  • com.hp.hpl.jena.sdb.compiler.QueryCompilerMain$LimitOffsetOptimizer
  • com.hp.hpl.jena.sdb.compiler.QueryCompilerMain$SqlNodesFinisher
  • com.hp.hpl.jena.sdb.compiler.SDB_QC
  • com.hp.hpl.jena.sdb.compiler.SqlStageList
  • com.hp.hpl.jena.sdb.compiler.TransformSDB
  • com.hp.hpl.jena.sdb.layout2.index.SlotCompilerIndex
  • com.hp.hpl.jena.sdb.layout2.QueryCompiler2$FilterOptimizer
  • com.hp.hpl.jena.sdb.layout2.SQLBridge2
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.