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| author | James Moger <james.moger@gitblit.com> | 2017-01-30 16:38:24 -0500 |
|---|---|---|
| committer | James Moger <james.moger@gitblit.com> | 2017-01-30 16:46:03 -0500 |
| commit | 0a8fd25fd85b28c804e4c81c90bd35fdb2e57a66 (patch) | |
| tree | 44a0ba94fc3ae9199dd1feb44413b0b9947c3451 /src/main/java/com/iciql/BitCondition.java | |
| parent | cf7ea9600595749065129d48fbdff6f781db87b3 (diff) | |
| download | iciql-0a8fd25fd85b28c804e4c81c90bd35fdb2e57a66.tar.gz iciql-0a8fd25fd85b28c804e4c81c90bd35fdb2e57a66.zip | |
Added bitwise AND and XOR DSL for where clauses
Diffstat (limited to 'src/main/java/com/iciql/BitCondition.java')
| -rw-r--r-- | src/main/java/com/iciql/BitCondition.java | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/main/java/com/iciql/BitCondition.java b/src/main/java/com/iciql/BitCondition.java new file mode 100644 index 0000000..e76333f --- /dev/null +++ b/src/main/java/com/iciql/BitCondition.java @@ -0,0 +1,82 @@ +/*
+ * Copyright 2017 James Moger.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.iciql;
+
+/**
+ * A bitwise condition contains two operands, a bit operation, and a comparison test.
+ *
+ * @param <A> the operand type
+ */
+
+class BitCondition<A, T> implements Token, Bitwise<A, T> {
+
+ enum Bitwise {
+ AND, XOR
+ }
+
+ Bitwise bitwiseType;
+ CompareType compareType;
+ A x, y, z;
+ Query<T> query;
+
+ BitCondition(A x, A y, Bitwise bitwiseType, Query<T> query) {
+ this.bitwiseType = bitwiseType;
+ this.x = x;
+ this.y = y;
+ this.query = query;
+ }
+
+ public QueryWhere<T> exceeds(A y) {
+ z = y;
+ compareType = CompareType.EXCEEDS;
+ return new QueryWhere<T>(query);
+ }
+
+ public QueryWhere<T> atLeast(A y) {
+ z = y;
+ compareType = CompareType.AT_LEAST;
+ return new QueryWhere<T>(query);
+ }
+
+ public QueryWhere<T> lessThan(A y) {
+ z = y;
+ compareType = CompareType.LESS_THAN;
+ return new QueryWhere<T>(query);
+ }
+
+ public QueryWhere<T> atMost(A y) {
+ z = y;
+ compareType = CompareType.AT_MOST;
+ return new QueryWhere<T>(query);
+ }
+
+ @SuppressWarnings("unchecked")
+ public <T> void appendSQL(SQLStatement stat, Query<T> query) {
+ stat.appendSQL("(");
+ switch (bitwiseType) {
+ case AND:
+ query.getDb().getDialect().prepareBitwiseAnd(stat, query, x, y);
+ break;
+ case XOR:
+ query.getDb().getDialect().prepareBitwiseXor(stat, query, x, y);
+ break;
+ }
+ stat.appendSQL(")");
+ stat.appendSQL(compareType.getString());
+ stat.appendSQL("" + z);
+ }
+}
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