55 lines
1.3 KiB
Java
55 lines
1.3 KiB
Java
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package Ext_Tools;
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/**
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*
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* <b> Task of this class </b> <br/>
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* It represents the column name in the order-by part of a selection query. Since
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* qualifiers are used a class had to be created for the column names.
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*/
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public class OrderElement {
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private String Name;
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private String Quali;
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public OrderElement(String name) {
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int PosColon;
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PosColon = name.indexOf(":");
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if (PosColon==-1) {
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this.Name = name;
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this.Quali = "";
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}
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else {
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this.Quali = name.substring(0, PosColon);
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this.Name = name.substring(PosColon+1);
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}
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}
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public boolean hasQuali() {
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return (this.Quali != "");
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}
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public void setQuali(String quali) {
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this.Quali = quali;
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}
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public String getAtt() {
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return this.Name;
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}
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public String getGElement(){
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String PreResult = "";
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if (this.Quali != "")
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PreResult = this.Quali + ":";
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PreResult += this.Name;
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return PreResult;
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}
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/* OrderClause runs through all Select-Elements. If it finds the first one which has the same
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* name as this element has got it will take the Qualifier of this Select-Element. This will
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* only be done in case this Group-Element has not had his own Qualifier. An Alias will not be
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* accepted by the group-by part of secondo, but qualifiers will.
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*/
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}
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