Package org.lealone.value

Examples of org.lealone.value.Value

241
242
243
244
245
246
247
248
249
250
251
252
253
254
        AggregateData data = (AggregateData) group.get(this);
        if (data == null) {
            data = new AggregateData(type, dataType);
            group.put(this, data);
        }
        Value v = on == null ? null : on.getValue(session);
        if (type == GROUP_CONCAT) {
            if (v != ValueNull.INSTANCE) {
                v = v.convertTo(Value.STRING);
                if (orderList != null) {
                    int size = orderList.size();
                    Value[] array = new Value[1 + size];
                    array[0] = v;
                    for (int i = 0; i < size; i++) {
View Full Code Here
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
                if ((sortType & SortOrder.DESCENDING) != 0) {
                    first = !first;
                }
                Cursor cursor = index.findFirstOrLast(session, first);
                SearchRow row = cursor.getSearchRow();
                Value v;
                if (row == null) {
                    v = ValueNull.INSTANCE;
                } else {
                    v = row.getValue(index.getColumns()[0].getColumnId());
                }
                return v;
            default:
                DbException.throwInternalError("type=" + type);
            }
        }
        HashMap<Expression, Object> group = select.getCurrentGroup();
        if (group == null) {
            throw DbException.get(ErrorCode.INVALID_USE_OF_AGGREGATE_FUNCTION_1, getSQL());
        }
        AggregateData data = (AggregateData) group.get(this);
        if (data == null) {
            data = new AggregateData(type, dataType);
        }
        Value v = data.getValue(session.getDatabase(), distinct);
        if (type == GROUP_CONCAT) {
            ArrayList<Value> list = data.getList();
            if (list == null || list.size() == 0) {
                return ValueNull.INSTANCE;
            }
View Full Code Here
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
                if ((sortType & SortOrder.DESCENDING) != 0) {
                    first = !first;
                }
                Cursor cursor = index.findFirstOrLast(session, first);
                SearchRow row = cursor.getSearchRow();
                Value v;
                if (row == null) {
                    v = ValueNull.INSTANCE;
                } else {
                    v = row.getValue(index.getColumns()[0].getColumnId());
                }
                return v;
            default:
                DbException.throwInternalError("type=" + type);
            }
        }
        HashMap<Expression, Object> group = select.getCurrentGroup();
        if (group == null) {
            throw DbException.get(ErrorCode.INVALID_USE_OF_AGGREGATE_FUNCTION_1, getSQL());
        }
        AggregateData data = (AggregateData) group.get(this);
        if (data == null) {
            data = new AggregateData(type, dataType);
        }
        Value v = data.getMergedValue(session.getDatabase(), distinct);
        if (type == GROUP_CONCAT) {
            ArrayList<Value> list = data.getList();
            if (list == null || list.size() == 0) {
                return ValueNull.INSTANCE;
            }
View Full Code Here
187
188
189
190
191
192
193
194
195
196
197
        return v == null ? null : v.getResultSet();
    }

    private ValueResultSet getValueResultSet(Session session) {
        functionExpr = functionExpr.optimize(session);
        Value v = functionExpr.getValue(session);
        if (v == ValueNull.INSTANCE) {
            return null;
        }
        return (ValueResultSet) v;
    }
View Full Code Here
172
173
174
175
176
177
178
179
180
181
182
                    compareType = getReversedCompareType(compareType);
                }
            }
            if (left instanceof ExpressionColumn) {
                if (right.isConstant()) {
                    Value r = right.getValue(session);
                    if (r == ValueNull.INSTANCE) {
                        if ((compareType & NULL_SAFE) == 0) {
                            return ValueExpression.getNull();
                        }
                    }
View Full Code Here
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
        }
        return this;
    }

    public Value getValue(Session session) {
        Value l = left.getValue(session);
        if (right == null) {
            boolean result;
            switch (compareType) {
            case IS_NULL:
                result = l == ValueNull.INSTANCE;
                break;
            case IS_NOT_NULL:
                result = !(l == ValueNull.INSTANCE);
                break;
            default:
                throw DbException.throwInternalError("type=" + compareType);
            }
            return ValueBoolean.get(result);
        }
        if (l == ValueNull.INSTANCE) {
            if ((compareType & NULL_SAFE) == 0) {
                return ValueNull.INSTANCE;
            }
        }
        Value r = right.getValue(session);
        if (r == ValueNull.INSTANCE) {
            if ((compareType & NULL_SAFE) == 0) {
                return ValueNull.INSTANCE;
            }
        }
        int dataType = Value.getHigherOrder(left.getType(), right.getType());
        l = l.convertTo(dataType);
        r = r.convertTo(dataType);
        boolean result = compareNotNull(database, l, r, compareType);
        return ValueBoolean.get(result);
    }
View Full Code Here
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
        right = right.optimize(session);
        if (left.getType() == Value.STRING_IGNORECASE) {
            ignoreCase = true;
        }
        if (left.isValueSet()) {
            Value l = left.getValue(session);
            if (l == ValueNull.INSTANCE) {
                // NULL LIKE something > NULL
                return ValueExpression.getNull();
            }
        }
        if (escape != null) {
            escape = escape.optimize(session);
        }
        if (right.isValueSet() && (escape == null || escape.isValueSet())) {
            if (left.isValueSet()) {
                return ValueExpression.get(getValue(session));
            }
            Value r = right.getValue(session);
            if (r == ValueNull.INSTANCE) {
                // something LIKE NULL > NULL
                return ValueExpression.getNull();
            }
            Value e = escape == null ? null : escape.getValue(session);
            if (e == ValueNull.INSTANCE) {
                return ValueExpression.getNull();
            }
            String p = r.getString();
            initPattern(p, getEscapeChar(e));
            if (invalidPattern) {
                return ValueExpression.getNull();
            }
            if ("%".equals(p)) {
                // optimization for X LIKE '%': convert to X IS NOT NULL
                return new Comparison(session, Comparison.IS_NOT_NULL, left, null).optimize(session);
            }
            if (isFullMatch()) {
                // optimization for X LIKE 'Hello': convert to X = 'Hello'
                Value value = ValueString.get(patternString);
                Expression expr = ValueExpression.get(value);
                return new Comparison(session, Comparison.EQUAL, left, expr).optimize(session);
            }
            isInit = true;
        }
View Full Code Here
168
169
170
171
172
173
174
175
176
177
178
        }
        if (escape != null && !escape.isEverything(ExpressionVisitor.INDEPENDENT_VISITOR)) {
            return;
        }
        String p = right.getValue(session).getString();
        Value e = escape == null ? null : escape.getValue(session);
        if (e == ValueNull.INSTANCE) {
            // should already be optimized
            DbException.throwInternalError();
        }
        initPattern(p, getEscapeChar(e));
View Full Code Here
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
            }
        }
    }

    public Value getValue(Session session) {
        Value l = left.getValue(session);
        if (l == ValueNull.INSTANCE) {
            return l;
        }
        if (!isInit) {
            Value r = right.getValue(session);
            if (r == ValueNull.INSTANCE) {
                return r;
            }
            String p = r.getString();
            Value e = escape == null ? null : escape.getValue(session);
            if (e == ValueNull.INSTANCE) {
                return ValueNull.INSTANCE;
            }
            initPattern(p, getEscapeChar(e));
        }
View Full Code Here
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
        int reversed = andOrType == AND ? OR : AND;
        return new ConditionAndOr(reversed, l, r);
    }

    public Value getValue(Session session) {
        Value l = left.getValue(session);
        Value r;
        switch (andOrType) {
        case AND: {
            if (Boolean.FALSE.equals(l.getBoolean())) {
                return l;
            }
            r = right.getValue(session);
            if (Boolean.FALSE.equals(r.getBoolean())) {
                return r;
            }
            if (l == ValueNull.INSTANCE) {
                return l;
            }
            if (r == ValueNull.INSTANCE) {
                return r;
            }
            return ValueBoolean.get(true);
        }
        case OR: {
            if (Boolean.TRUE.equals(l.getBoolean())) {
                return l;
            }
            r = right.getValue(session);
            if (Boolean.TRUE.equals(r.getBoolean())) {
                return r;
            }
            if (l == ValueNull.INSTANCE) {
                return l;
            }
View Full Code Here
TOP

Related Classes of org.lealone.value.Value

  • org.lealone.command.CommandContainer
  • org.lealone.command.CommandRemote
  • org.lealone.command.ddl.CreateConstant
  • org.lealone.command.dml.Call
  • org.lealone.command.dml.Delete
  • org.lealone.command.dml.Insert
  • org.lealone.command.dml.Merge
  • org.lealone.command.dml.Query
  • org.lealone.command.dml.ScriptCommand
  • org.lealone.command.dml.Select
    • 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.