Java getting data from a database with an SQL statement












1















so I have data in a table that's initialized on startup in my configbean.
The format is: String id, String name, Double rate
example: "1", "Alabama", .02



In my request bean, I have a function to get ONLY the names.



public List<String> getStateNames() {
List<String> results = em.createNamedQuery("getStateNames").getResultList();
results.sort(null);
return results;
}


Here's the base file StateTax



@Entity
@Table(name = "STATE_TAXES")
@NamedQueries({
/*@NamedQuery(
name = "getTaxRate",
query = "SELECT t FROM StateTax t WHERE t.stateName = :stateName"),*/
@NamedQuery(
name = "getStateNames",
query = "SELECT t FROM StateTax t ORDER BY t.stateID")
})
public class StateTax implements Serializable {
@Id
private String stateID;
private String stateName;
private double taxRate;

//supposed to lok like book.java
public StateTax() {

}

public StateTax(String id, String st, double tax) {
this.stateID = id;
this.stateName = st;
this.taxRate = tax;
}

public String getStateID() {
return stateID;
}

public void setStateID(String stateID) {
this.stateID = stateID;
}

public String getStateName() {
return stateName;
}

public void setStateName(String stateName) {
this.stateName = stateName;
}

public double getTaxRate() {
return taxRate;
}

public void setTaxRate(double taxRate) {
this.taxRate = taxRate;
}



public String getState() {
return stateName;
}

public void setState(String state) {
this.stateName = state;
}

@Override
public int hashCode() {
int hash = 0;
hash += (stateID != null ? stateID.hashCode() : 0);
return hash;
}

@Override
public boolean equals(Object object) {
if (!(object instanceof StateTax)) {
return false;
}
StateTax other = (StateTax) object;
return this.stateID != null || this.stateID == null
&& other.stateID == null || this.stateID.equals(other.stateID);
}

@Override
public String toString() {
return "bookstore.entities.StateTax[ stateId=" + stateID + " ]";
}
}


The end product is supposed to be a drop down box that allows you to select one option in xhtml.



My xhtml portion (which is commented out for now):



<h:outputLabel for="stateOption" value="#{bundle.StateName}"/>
<h:selectOneMenu id="stateName"
required="true"
valueChangeListener="#{cashierBean.setTax}">
<f:selectItems value="#{cashierBean.stateNames}"
var="stateName">
</f:selectItems>
</h:selectOneMenu>
<h:message styleClass="error-message" for="stateOption"/>


So here's a part of the error I get on the SQL statement in my statetax file:



Exception Description: Problem compiling [SELECT t FROM StateTax t ORDER BY t.stateId]. 


My question: How do I properly get a list of names from a table?










share|improve this question

























  • Could you share all code for StateTax class

    – Mykhailo Moskura
    Nov 19 '18 at 23:13











  • @MykhailoMoskura I added it in.

    – gatorade2131
    Nov 19 '18 at 23:31











  • Exception Description: Problem compiling [SELECT t FROM StateTax t ORDER BY t.stateId Your exception says problem compiling because of field name which you are invoking in JPQL Actually as i see now it is stateID but was stateId

    – Mykhailo Moskura
    Nov 19 '18 at 23:37













  • It is now working fine or you are having different error?

    – Mykhailo Moskura
    Nov 19 '18 at 23:44











  • Possible duplicate of Nice way to select a tuple using JPA

    – K.Nicholas
    Nov 20 '18 at 1:21
















1















so I have data in a table that's initialized on startup in my configbean.
The format is: String id, String name, Double rate
example: "1", "Alabama", .02



In my request bean, I have a function to get ONLY the names.



public List<String> getStateNames() {
List<String> results = em.createNamedQuery("getStateNames").getResultList();
results.sort(null);
return results;
}


Here's the base file StateTax



@Entity
@Table(name = "STATE_TAXES")
@NamedQueries({
/*@NamedQuery(
name = "getTaxRate",
query = "SELECT t FROM StateTax t WHERE t.stateName = :stateName"),*/
@NamedQuery(
name = "getStateNames",
query = "SELECT t FROM StateTax t ORDER BY t.stateID")
})
public class StateTax implements Serializable {
@Id
private String stateID;
private String stateName;
private double taxRate;

//supposed to lok like book.java
public StateTax() {

}

public StateTax(String id, String st, double tax) {
this.stateID = id;
this.stateName = st;
this.taxRate = tax;
}

public String getStateID() {
return stateID;
}

public void setStateID(String stateID) {
this.stateID = stateID;
}

public String getStateName() {
return stateName;
}

public void setStateName(String stateName) {
this.stateName = stateName;
}

public double getTaxRate() {
return taxRate;
}

public void setTaxRate(double taxRate) {
this.taxRate = taxRate;
}



public String getState() {
return stateName;
}

public void setState(String state) {
this.stateName = state;
}

@Override
public int hashCode() {
int hash = 0;
hash += (stateID != null ? stateID.hashCode() : 0);
return hash;
}

@Override
public boolean equals(Object object) {
if (!(object instanceof StateTax)) {
return false;
}
StateTax other = (StateTax) object;
return this.stateID != null || this.stateID == null
&& other.stateID == null || this.stateID.equals(other.stateID);
}

@Override
public String toString() {
return "bookstore.entities.StateTax[ stateId=" + stateID + " ]";
}
}


The end product is supposed to be a drop down box that allows you to select one option in xhtml.



My xhtml portion (which is commented out for now):



<h:outputLabel for="stateOption" value="#{bundle.StateName}"/>
<h:selectOneMenu id="stateName"
required="true"
valueChangeListener="#{cashierBean.setTax}">
<f:selectItems value="#{cashierBean.stateNames}"
var="stateName">
</f:selectItems>
</h:selectOneMenu>
<h:message styleClass="error-message" for="stateOption"/>


So here's a part of the error I get on the SQL statement in my statetax file:



Exception Description: Problem compiling [SELECT t FROM StateTax t ORDER BY t.stateId]. 


My question: How do I properly get a list of names from a table?










share|improve this question

























  • Could you share all code for StateTax class

    – Mykhailo Moskura
    Nov 19 '18 at 23:13











  • @MykhailoMoskura I added it in.

    – gatorade2131
    Nov 19 '18 at 23:31











  • Exception Description: Problem compiling [SELECT t FROM StateTax t ORDER BY t.stateId Your exception says problem compiling because of field name which you are invoking in JPQL Actually as i see now it is stateID but was stateId

    – Mykhailo Moskura
    Nov 19 '18 at 23:37













  • It is now working fine or you are having different error?

    – Mykhailo Moskura
    Nov 19 '18 at 23:44











  • Possible duplicate of Nice way to select a tuple using JPA

    – K.Nicholas
    Nov 20 '18 at 1:21














1












1








1








so I have data in a table that's initialized on startup in my configbean.
The format is: String id, String name, Double rate
example: "1", "Alabama", .02



In my request bean, I have a function to get ONLY the names.



public List<String> getStateNames() {
List<String> results = em.createNamedQuery("getStateNames").getResultList();
results.sort(null);
return results;
}


Here's the base file StateTax



@Entity
@Table(name = "STATE_TAXES")
@NamedQueries({
/*@NamedQuery(
name = "getTaxRate",
query = "SELECT t FROM StateTax t WHERE t.stateName = :stateName"),*/
@NamedQuery(
name = "getStateNames",
query = "SELECT t FROM StateTax t ORDER BY t.stateID")
})
public class StateTax implements Serializable {
@Id
private String stateID;
private String stateName;
private double taxRate;

//supposed to lok like book.java
public StateTax() {

}

public StateTax(String id, String st, double tax) {
this.stateID = id;
this.stateName = st;
this.taxRate = tax;
}

public String getStateID() {
return stateID;
}

public void setStateID(String stateID) {
this.stateID = stateID;
}

public String getStateName() {
return stateName;
}

public void setStateName(String stateName) {
this.stateName = stateName;
}

public double getTaxRate() {
return taxRate;
}

public void setTaxRate(double taxRate) {
this.taxRate = taxRate;
}



public String getState() {
return stateName;
}

public void setState(String state) {
this.stateName = state;
}

@Override
public int hashCode() {
int hash = 0;
hash += (stateID != null ? stateID.hashCode() : 0);
return hash;
}

@Override
public boolean equals(Object object) {
if (!(object instanceof StateTax)) {
return false;
}
StateTax other = (StateTax) object;
return this.stateID != null || this.stateID == null
&& other.stateID == null || this.stateID.equals(other.stateID);
}

@Override
public String toString() {
return "bookstore.entities.StateTax[ stateId=" + stateID + " ]";
}
}


The end product is supposed to be a drop down box that allows you to select one option in xhtml.



My xhtml portion (which is commented out for now):



<h:outputLabel for="stateOption" value="#{bundle.StateName}"/>
<h:selectOneMenu id="stateName"
required="true"
valueChangeListener="#{cashierBean.setTax}">
<f:selectItems value="#{cashierBean.stateNames}"
var="stateName">
</f:selectItems>
</h:selectOneMenu>
<h:message styleClass="error-message" for="stateOption"/>


So here's a part of the error I get on the SQL statement in my statetax file:



Exception Description: Problem compiling [SELECT t FROM StateTax t ORDER BY t.stateId]. 


My question: How do I properly get a list of names from a table?










share|improve this question
















so I have data in a table that's initialized on startup in my configbean.
The format is: String id, String name, Double rate
example: "1", "Alabama", .02



In my request bean, I have a function to get ONLY the names.



public List<String> getStateNames() {
List<String> results = em.createNamedQuery("getStateNames").getResultList();
results.sort(null);
return results;
}


Here's the base file StateTax



@Entity
@Table(name = "STATE_TAXES")
@NamedQueries({
/*@NamedQuery(
name = "getTaxRate",
query = "SELECT t FROM StateTax t WHERE t.stateName = :stateName"),*/
@NamedQuery(
name = "getStateNames",
query = "SELECT t FROM StateTax t ORDER BY t.stateID")
})
public class StateTax implements Serializable {
@Id
private String stateID;
private String stateName;
private double taxRate;

//supposed to lok like book.java
public StateTax() {

}

public StateTax(String id, String st, double tax) {
this.stateID = id;
this.stateName = st;
this.taxRate = tax;
}

public String getStateID() {
return stateID;
}

public void setStateID(String stateID) {
this.stateID = stateID;
}

public String getStateName() {
return stateName;
}

public void setStateName(String stateName) {
this.stateName = stateName;
}

public double getTaxRate() {
return taxRate;
}

public void setTaxRate(double taxRate) {
this.taxRate = taxRate;
}



public String getState() {
return stateName;
}

public void setState(String state) {
this.stateName = state;
}

@Override
public int hashCode() {
int hash = 0;
hash += (stateID != null ? stateID.hashCode() : 0);
return hash;
}

@Override
public boolean equals(Object object) {
if (!(object instanceof StateTax)) {
return false;
}
StateTax other = (StateTax) object;
return this.stateID != null || this.stateID == null
&& other.stateID == null || this.stateID.equals(other.stateID);
}

@Override
public String toString() {
return "bookstore.entities.StateTax[ stateId=" + stateID + " ]";
}
}


The end product is supposed to be a drop down box that allows you to select one option in xhtml.



My xhtml portion (which is commented out for now):



<h:outputLabel for="stateOption" value="#{bundle.StateName}"/>
<h:selectOneMenu id="stateName"
required="true"
valueChangeListener="#{cashierBean.setTax}">
<f:selectItems value="#{cashierBean.stateNames}"
var="stateName">
</f:selectItems>
</h:selectOneMenu>
<h:message styleClass="error-message" for="stateOption"/>


So here's a part of the error I get on the SQL statement in my statetax file:



Exception Description: Problem compiling [SELECT t FROM StateTax t ORDER BY t.stateId]. 


My question: How do I properly get a list of names from a table?







java sql






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 19 '18 at 23:30







gatorade2131

















asked Nov 19 '18 at 22:51









gatorade2131gatorade2131

105




105













  • Could you share all code for StateTax class

    – Mykhailo Moskura
    Nov 19 '18 at 23:13











  • @MykhailoMoskura I added it in.

    – gatorade2131
    Nov 19 '18 at 23:31











  • Exception Description: Problem compiling [SELECT t FROM StateTax t ORDER BY t.stateId Your exception says problem compiling because of field name which you are invoking in JPQL Actually as i see now it is stateID but was stateId

    – Mykhailo Moskura
    Nov 19 '18 at 23:37













  • It is now working fine or you are having different error?

    – Mykhailo Moskura
    Nov 19 '18 at 23:44











  • Possible duplicate of Nice way to select a tuple using JPA

    – K.Nicholas
    Nov 20 '18 at 1:21



















  • Could you share all code for StateTax class

    – Mykhailo Moskura
    Nov 19 '18 at 23:13











  • @MykhailoMoskura I added it in.

    – gatorade2131
    Nov 19 '18 at 23:31











  • Exception Description: Problem compiling [SELECT t FROM StateTax t ORDER BY t.stateId Your exception says problem compiling because of field name which you are invoking in JPQL Actually as i see now it is stateID but was stateId

    – Mykhailo Moskura
    Nov 19 '18 at 23:37













  • It is now working fine or you are having different error?

    – Mykhailo Moskura
    Nov 19 '18 at 23:44











  • Possible duplicate of Nice way to select a tuple using JPA

    – K.Nicholas
    Nov 20 '18 at 1:21

















Could you share all code for StateTax class

– Mykhailo Moskura
Nov 19 '18 at 23:13





Could you share all code for StateTax class

– Mykhailo Moskura
Nov 19 '18 at 23:13













@MykhailoMoskura I added it in.

– gatorade2131
Nov 19 '18 at 23:31





@MykhailoMoskura I added it in.

– gatorade2131
Nov 19 '18 at 23:31













Exception Description: Problem compiling [SELECT t FROM StateTax t ORDER BY t.stateId Your exception says problem compiling because of field name which you are invoking in JPQL Actually as i see now it is stateID but was stateId

– Mykhailo Moskura
Nov 19 '18 at 23:37







Exception Description: Problem compiling [SELECT t FROM StateTax t ORDER BY t.stateId Your exception says problem compiling because of field name which you are invoking in JPQL Actually as i see now it is stateID but was stateId

– Mykhailo Moskura
Nov 19 '18 at 23:37















It is now working fine or you are having different error?

– Mykhailo Moskura
Nov 19 '18 at 23:44





It is now working fine or you are having different error?

– Mykhailo Moskura
Nov 19 '18 at 23:44













Possible duplicate of Nice way to select a tuple using JPA

– K.Nicholas
Nov 20 '18 at 1:21





Possible duplicate of Nice way to select a tuple using JPA

– K.Nicholas
Nov 20 '18 at 1:21












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