1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21 package org.apache.expreval.expr.betweenstmt;
22
23 import org.apache.expreval.client.NullColumnValueException;
24 import org.apache.expreval.client.ResultMissingColumnException;
25 import org.apache.expreval.expr.TypeSupport;
26 import org.apache.expreval.expr.node.ByteValue;
27 import org.apache.expreval.expr.node.DateValue;
28 import org.apache.expreval.expr.node.GenericValue;
29 import org.apache.expreval.expr.node.NumberValue;
30 import org.apache.expreval.expr.node.StringValue;
31 import org.apache.hadoop.hbase.filter.Filter;
32 import org.apache.hadoop.hbase.hbql.client.HBqlException;
33 import org.apache.hadoop.hbase.hbql.impl.HConnectionImpl;
34
35 public class DelegateBetweenStmt extends GenericBetweenStmt {
36
37 public DelegateBetweenStmt(final GenericValue arg0,
38 final boolean not,
39 final GenericValue arg1,
40 final GenericValue arg2) {
41 super(null, not, arg0, arg1, arg2);
42 }
43
44 public Class<? extends GenericValue> validateTypes(final GenericValue parentExpr,
45 final boolean allowCollections) throws HBqlException {
46
47 final Class<? extends GenericValue> type1 = this.getExprArg(0).validateTypes(this, false);
48 final Class<? extends GenericValue> type2 = this.getExprArg(1).validateTypes(this, false);
49 final Class<? extends GenericValue> type3 = this.getExprArg(2).validateTypes(this, false);
50
51 if (TypeSupport.isParentClass(StringValue.class, type1, type2, type3))
52 this.setTypedExpr(new StringBetweenStmt(this.getExprArg(0), this.isNot(), this.getExprArg(1), this.getExprArg(2)));
53 else if (TypeSupport.isParentClass(NumberValue.class, type1, type2, type3))
54 this.setTypedExpr(new NumberBetweenStmt(this.getExprArg(0), this.isNot(), this.getExprArg(1), this.getExprArg(2)));
55 else if (TypeSupport.isParentClass(DateValue.class, type1, type2, type3))
56 this.setTypedExpr(new DateBetweenStmt(this.getExprArg(0), this.isNot(), this.getExprArg(1), this.getExprArg(2)));
57 else if (TypeSupport.isParentClass(ByteValue.class, type1, type2, type3))
58 this.setTypedExpr(new ByteBetweenStmt(this.getExprArg(0), this.isNot(), this.getExprArg(1), this.getExprArg(2)));
59 else
60 this.throwInvalidTypeException(type1, type2, type3);
61
62 return this.getTypedExpr().validateTypes(parentExpr, false);
63 }
64
65 public GenericValue getOptimizedValue() throws HBqlException {
66 this.optimizeAllArgs();
67 return !this.isAConstant() ? this : this.getTypedExpr().getOptimizedValue();
68 }
69
70 public Boolean getValue(final HConnectionImpl conn, final Object object) throws HBqlException,
71 ResultMissingColumnException,
72 NullColumnValueException {
73 return this.getTypedExpr().getValue(conn, object);
74 }
75
76 public Filter getFilter() throws HBqlException {
77 return this.getTypedExpr().getFilter();
78 }
79 }