svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / function / typeconversion / ToStrFunction.java @ 44198
History | View | Annotate | Download (1 KB)
1 |
package org.gvsig.expressionevaluator.impl.function.typeconversion; |
---|---|
2 |
|
3 |
import org.apache.commons.lang3.Range; |
4 |
import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_TOSTR; |
5 |
import org.gvsig.expressionevaluator.Interpreter; |
6 |
import org.gvsig.expressionevaluator.spi.AbstractFunction; |
7 |
import org.gvsig.tools.ToolsLocator; |
8 |
import org.gvsig.tools.dataTypes.DataTypes; |
9 |
import org.gvsig.tools.dataTypes.DataTypesManager.Coercion; |
10 |
|
11 |
public class ToStrFunction extends AbstractFunction { |
12 |
|
13 |
public ToStrFunction() {
|
14 |
super(GROUP_CONVERSION, FUNCTION_TOSTR, Range.is(1)); |
15 |
this.addAlias("STR"); |
16 |
this.addAlias("toString"); |
17 |
} |
18 |
|
19 |
@Override
|
20 |
public boolean allowConstantFolding() { |
21 |
return true; |
22 |
} |
23 |
|
24 |
@Override
|
25 |
public Object call(Interpreter interpreter, Object[] args) throws Exception { |
26 |
Coercion toStr = ToolsLocator.getDataTypesManager().getCoercion(DataTypes.STRING); |
27 |
Object value = toStr.coerce(this.getObject(args, 0)); |
28 |
return value;
|
29 |
} |
30 |
|
31 |
} |