Revision 22512 trunk/extensions/extSymbology/src/org/gvsig/symbology/fmap/rendering/filter/operations/StringConstant.java
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import com.hardcode.gdbms.engine.values.Value; |
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/** |
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* Implements the funcionality of a String constant |
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*
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* |
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* @author Pepe Vidal Salvador - jose.vidal.salvador@iver.es |
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* |
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*/ |
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public class StringConstant implements Expression
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public class StringConstant extends Operator
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{
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private String value; |
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public String getName() {
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return OperationTags.STRING_CONSTANT; |
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} |
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public StringConstant(String value) |
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{
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this.value = value; |
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} |
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public void addArgument(Expression function) |
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{
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throw new RuntimeException("Cannot add an argument to a constant");
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} |
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public void addArgument(int index, Expression expression) |
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{
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throw new RuntimeException("Cannot add an argument to a constant");
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} |
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public StringConstant(String value,Hashtable<String, Value> symbol_table) |
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{
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super(symbol_table); |
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this.value = value; |
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} |
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public Object evaluate(Hashtable<String, Value> symbol_table) {
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public void addArgument(Expression function) |
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{
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throw new RuntimeException("Cannot add an argument to a constant");
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} |
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public void addArgument(int index, Expression expression) |
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{
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throw new RuntimeException("Cannot add an argument to a constant");
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} |
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public Object evaluate() {
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return value; |
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} |
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public String getPattern() {
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return null; |
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} |
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public ArrayList<Expression> getArguments() {
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return null; |
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} |
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return; |
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} |
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public void check(Hashtable<String, Value> symbol_table) throws ExpressionException {
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public void check() throws ExpressionException {
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return; |
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} |
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public String getValue() {
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return value; |
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} |
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} |
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